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BACKGROUND: Chemotherapy, a cornerstone treatment for childhood cancers, can negatively impact oral health. This study aimed to evaluate the prevalence and evolution of oral complications in these patients. MATERIALS AND METHODS: A prospective observational study enrolled 44 children diagnosed with malignancy undergoing chemotherapy at a tertiary care institute in central India. Oral examinations were performed at baseline, with follow-ups at 3-6 and 9-12 months. Data collected included demographics, medical history, oral hygiene practices, and oral lesions. Blood counts and World Health Organization grading for mucositis were used. Descriptive statistics and appropriate statistical tests analyzed the data (P ≤ 0.05). RESULTS: Acute lymphoblastic leukemia (ALL) was the most prevalent malignancy. Children reported various oral complaints such as ulcers, bleeding gums, and difficulty eating. Mucositis prevalence significantly decreased over follow-up visits (baseline: 56.8% and second follow-up: 13.3%). Gingival inflammation was present, though mean scores decreased over time. Oral hygiene scores varied without significant changes. Caries experience scores increased from baseline to follow-up. CONCLUSION: This study identified a high prevalence of ALL and diverse oral complications in children undergoing chemotherapy. While mucositis severity lessened over time, other issues such as caries persisted. These findings highlight the critical need for preventive oral care strategies to safeguard this vulnerable population's oral health.

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BACKGROUND: Acute lymphoblastic leukemia is the most common pediatric malignancy, characterized by fever, anemia, hemorrhage, and symptoms brought on by blasts infiltrating organs. CASE PRESENTATION: This is a case report of a 9-year-old Asian patient with acute lymphoblastic leukemia who presented with polyuria alone as a presenting feature without any other clinical manifestation; primary renal disease or inherited metabolic disease was highly suspected. However, the water deprivation test and water deprivation pressurization test suggested nephrogenic diabetes insipidus, and the renal biopsy displayed diffuse lymphocytic infiltration in the renal interstitium. Bone marrow aspiration was performed immediately, and a comprehensive diagnosis of B-lymphoblastic leukemia was finally made. CONCLUSIONS: Renal infiltration with leukemic blasts mostly remains asymptomatic, but our case suggests that it can present with nephrogenic diabetes insipidus. This case fully demonstrates that the presentation of extramedullary infiltration in acute lymphoblastic leukemia is varied. When the patient has renal diabetes insipidus as the first symptom, the possibility of hematological tumor infiltration should be considered when finding the cause, and timely bone marrow cytology should be performed.

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Pneumatosis cystoides intestinalis (PCI) is a rare condition characterized by air accumulation within the subserosa or submucosa of the gastrointestinal wall. We herein report a case involving a woman in her early 30s who developed PCI after undergoing allogeneic hematopoietic stem cell transplantation (HSCT) for acute lymphoblastic leukemia. The patient had a history of multiple COVID-19 infections. Imaging revealed extensive pneumoperitoneum and mesenteric emphysema; nevertheless, the patient remained clinically stable with a benign abdominal examination. She eventually recovered after 1 month of conservative treatment. We believe the PCI in this case had a multifactorial etiology, potentially involving both HSCT and COVID-19. Raising awareness of PCI may help avoid unnecessary surgical interventions and associated morbidity.

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Superior vena cava syndrome (SVCS) is a clinical picture resulting from the obstruction of superior vena cava. SVCS usually causes symptoms and signs related to the head, the neck, the upper extremities and the upper thorax. We report a case of unusual clinical presentation of SVCS in a 25-year-old male patient who suffered from lymphoblastic lymphoma in childhood. Clinicians should be aware of abdominal wall presentations of SVCS especially in patients having undergone central venous catheterization, even years before. SVCS could be an emergency situation, requiring specific treatment or contraindicating surgical procedures.

Le syndrome de la veine cave supérieure (SVCS) est une entité nosologique résultant de l'obstruction de la veine cave supérieure. Un SVCS comporte habituellement des symptômes et des signes cliniques localisés à la région cranio-cervicale, aux membres supérieurs et au niveau thoracique supérieur. Nous rapportons un cas de présentation clinique inhabituelle de SVCS chez un patient de 25 ans aux antécédents de lymphome lymphoblastique dans l'enfance. En pratique clinique, il est important de garder à l'esprit l'existence de présentations inhabituelles pariétales abdominales de SVCS, en particulier chez les patients ayant subi un cathétérisme veineux central, même plusieurs années auparavant. Un SVCS peut nécessiter un traitement spécifique, parfois en urgence et contre-indiquer certaines interventions chirurgicales.

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BACKGROUND: Mucormycosis is a significant cause of morbidity and mortality in patients with hematological malignancies, but its characteristics are not fully understood. This study aimed to gain a better understanding of the clinical features of mucormycosis in patients with hematological malignancies in eastern China. METHODS: A single-center retrospective analysis was conducted on the demographic profile, microbiology, management, and 90-day mortality of mucormycosis patients with hematological malignancies between 2018 and 2023. RESULTS: A total of 50 cases were included in the study, consisting of 11 proven and 39 probable cases of mucormycosis. The median age of the patients was 39.98 ± 18.52 years, with 52% being male. Among the cases, 46% had acute myeloid leukemia (AML), 16% had acute lymphoblastic leukemia (ALL), and 16% had myelodysplastic syndrome. The most common manifestations of mucormycosis were pulmonary (80%), disseminated (16%), and rhinocerebral (4%). The diagnosis was confirmed through histology, culture, microscopy, and molecular diagnostic techniques. The most commonly identified fungal species were Cunninghamella (40%), Rhizopus (26%), and Rhizomucor (22%). Treatment involved antifungals in 84% of cases and surgery in 10% of cases. The 90-day mortality rate was 76%. Logistic regression analysis revealed that treatment with amphotericin B and surgery was associated with improved survival, while neutropenia and administration of voriconazole prior to diagnosis was associated with higher mortality. CONCLUSIONS: Mucormycosis continues to have a high mortality rate in patients with hematological malignancies. Early diagnosis using various techniques, including molecular biology, along with the appropriate use of amphotericin B and surgery when possible, is vital for the successful treatment of mucormycosis.

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Acute leukemia is a hematological malignancy affecting different organ systems including the eye and orbit through direct infiltration of tissues or secondary to hematological abnormalities. Ophthalmological manifestations in acute leukemia are variable ranging from asymptomatic presentation to serious manifestations that can alter the disease course and treatment. The purpose of this study is to detect the incidence of different ophthalmological manifestations in newly diagnosed acute leukemia patients and to assess the relationship between ocular findings and hematological characteristics and the sequel of these neoplasms. A cross-sectional study with analytical components was conducted on 222 newly diagnosed acute myeloid and acute lymphoblastic leukemia patients who presented at Oncology Center Mansoura University (OCMU) between January 2022 and February 2023. All patients underwent a complete ophthalmic evaluation at Mansoura Ophthalmology Center (MOC). The mean age was 43.45 ± 17.35 years (range, 17-85), and M/F was 137 (61.7%)/85 (38.3%). One-hundred and forty-four (64.9%) had acute myeloid leukemia (AML), and 78 (35.1%) had acute lymphoblastic leukemia (ALL). Ophthalmic manifestations were detected in 96 patients (43.2%). Among them, 4 (1.8%) had poor visual acuity. Retinal hemorrhage (19.8%) and Roth spots (17.1%) were the most common ocular manifestations. Other ophthalmological manifestations observed were orbital involvement (3.2%), ocular motility issues (1.4%), subconjunctival hemorrhage (5.9%), conjunctival chemosis (0.9%),lid swelling (4.1%), lid ecchymosis (3.2%), lagophthalmos (0.5%), lid ptosis (1.8%), retinal venous congestion & tortuosity (4.1%), preretinal hemorrhage (3.2%), vitreous hemorrhage (3.2%), macular affection (2.3%), retinal infiltration (1.8%), exudative retinal detachment (ERD) (1.8%), cotton-wool spots (0.9%), retinal vein occlusion (0.5%), papilledema (2.8%), optic disc infiltration (1.8%), disc pallor (1.8%).AML patients were significantly associated with a higher frequency of ocular affection, retinal hemorrhages, and Roth spots (P 0.028, 0.003, and 0.046, respectively) compared to ALL patients. Retinal hemorrhage was statistically significantly associated with anemia (P 0.021). Ophthalmological manifestations of acute leukemia are heterogeneous; they can be detected at initial presentations or relapse. Some manifestations are asymptomatic, others can affect visual acuity or even alter the disease course. Cooperation between ophthalmologists and haemato-oncologists is crucial for recognizing ocular involvement and disease management.

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Infection is a major cause of treatment-related morbidity and mortality in pediatric acute lymphoblastic leukemia (ALL). Most children with ALL who develop life-threatening bacterial infections do so during induction therapy. We describe a rare case of ALL presenting simultaneously with Streptococcus agalactiae group B Streptococcus bacteremia and meningitis in a 3-year-old girl. She received appropriate antimicrobial therapy and a 2-drug early induction regimen consisting of vincristine and dexamethasone, leading to slow neurologic recovery and a favorable initial response to anti-neoplastic therapy as evidenced by minimal residual disease of 1.12% on day 15 of induction.

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Mucormycosis is a rare life-threatening opportunistic infection, with rhinocerebral mucormycosis (ROCM) being the most common presentation. Trichosporon asahii is an emerging pathogen that often causes fatal infections in patients with underlying hematologic malignancies due to its high drug resistance. We report a rare case of concomitant rhinocerebral mucormycosis and T. asahii fungemia secondary to Pseudomonas aeruginosa sepsis in a patient with neutropenia and acute lymphoblastic leukemia. A boy aged one year and two months was diagnosed with B-cell acute lymphoblastic leukemia on January 10 and underwent three courses of regular chemotherapy. He experienced neutropenia for 154 days and was hospitalized for vomiting, diarrhea and fever for 3 days. The day after hospitalization, Pseudomonas aeruginosa was isolated by blood culture and ceftazidime/avibactam was administered. Extracorporeal Membrane Oxygenation (ECMO) was used to provide continuous extracorporeal respiration and circulation for the patient. On day 8, the patient developed T. asahii fungemia. On day 10, he presented with necrotizing skin caused by Rhizopus delemar. He was treated with liposomal amphotericin B for Rhizopus delemar and voriconazole for T. asahii infection. Unfortunately, his health deteriorated and he died on day 11 due to the rapid progression of the infection and multiple organ failure. The management and treatment of such a complex infection requires a multidisciplinary approach and close monitoring of the patient's condition. Therefore, it is imperative to continue to research and report rare cases such as this to further understand the complexities of mucormycosis and trichosporidiosis coinfection and improve patient outcomes.

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BACKGROUND: Diffuse large B-cell lymphoma (DLBCL) secondary to acute lymphoblastic leukemia (ALL) is a rare disease with poor prognosis, usually attributed to delayed diagnosis. To date, only four cases of ALL developing DLBCL have been reported, while none of them exhibiting central nervous system (CNS) symptoms. CASE DESCRIPTION: Here, we report an unusual case of a 15-year-old boy diagnosed with ALL and treated based on the SCCLG-ALL 2016 protocol. While he was receiving maintenance treatment, the patient developed dizziness and vomiting. An Epstein-Barr virus (EBV)-positive DLBCL with CNS involvement was diagnosed from inguinal lymph nodes biopsy, EBV DNA tests and head magnetic resonance imaging (MRI). Meanwhile, a dramatic decrease of immune cells and immunoglobulin was detected in the occurrence of DLBCL. He received therapy based on SCCCG-NHL-2017 protocol immediately after the diagnosis. CONCLUSIONS: We present the first retrospective report of four cases of non-Hodgkin lymphoma (NHL) secondary to ALL between 1990 and 2022. The pathogenesis of secondary DLBCL may be related to infection, immunodeficiency, genetic susceptibility, and treatment. Thus, the detection of EBV DNA during the full course of ALL therapy and genetic tests were needed in the occurrence of secondary DLBCL. Given to the rare rate and insufficient treatment experience, longer follow-up and enough sample size are needed.

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BACKGROUND: Pediatric patients with acute lymphoblastic leukemia (ALL) are at highest risk of venous thromboembolism during the induction therapy (IT). These events are not predictable by conventional coagulation assays. OBJECTIVES: To investigate the utility of global coagulation assays (GCAs) for assessing the hemostatic state in children with ALL during IT. METHODS: We included children with ALL (n = 15) and healthy controls (n = 15). Analyses were performed at different time points during IT of the AIEOP-BFM protocols. In addition to prothrombotic biomarkers, natural anticoagulant proteins, and in vivo thrombin generation (TG) markers, ex vivo TG was measured using the gold standard calibrated automated thrombogram method, automated ST Genesia, and thrombodynamics analyzer (TD). The latter also provided measurement of fibrin clot formation. RESULTS: Different from conventional coagulation assays and in vivo TG markers, ex vivo GCAs detected increasing prothrombotic changes during IT. Particularly, TG measured with TD as expressed by endogenous thrombin potential was already significantly elevated at days 8 to 12 (P < .01) and continued to increase during IT compared with prior to beginning treatment, indicating a very early shift toward a procoagulant state. A similar pattern was observed for the rate of fibrin clot formation (stationary rate of clot growth: P < .01 at days 8-12). Remarkably, in patients developing thrombotic complications (n = 5), both GCAs, ST Genesia and TD, showed a significantly higher endogenous thrombin potential very early (already at days 8-12, P < .05), well before clinical manifestation. CONCLUSION: GCAs capture prothrombotic changes early during IT in ALL pediatric patients. If confirmed, this approach will allow tailoring thromboprophylaxis in children with ALL at highest risk for venous thromboembolism.

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ABSTRACT: Ovarian hyperstimulation syndrome (OHSS) is characterized by cystic enlargement of the ovaries and a fluid retention. This syndrome is sometimes caused after in vitro fertilization. We treated a 37-year-old woman with OHSS after in vitro fertilization, coincidentally complicated with acute lymphoblastic leukemia. Her clinical course of acute lymphoblastic leukemia was aggressive with the manifestation of OHSS, such as massive pleural effusion and massive ascites. The leukemic cells broadly infiltrated to the peritoneum, ovary, central spine fluid, and pleura. We speculated that this hyperpermeability of leukemic cells could be associated with the cytokine milieu caused by OHSS.

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BACKGROUND: The impact of COVID-19 infection on the blood system remains to be investigated, especially with those encountering hematological malignancies. It was found that a high proportion of cancer patients are at an elevated risk of encountering COVID-19 infection. Leukemic patients are often suppressed and immunocompromised, which would impact the pathology following COVID-19 infection. Therefore, this research aims to bring valuable insight into the mechanism by which COVID-19 infection influences the hematological and biochemical parameters of patients with acute leukemia. METHODS: This retrospective investigation uses repeated measures to examine changes in hematological and biochemical parameters among patients with acute leukemia before and after COVID-19 infection at a major Saudi tertiary center. The investigation was conducted at the Ministry of National Guard-Health Affairs in Riyadh, Saudi Arabia, on 24 acute leukemia patients with COVID-19 between April 2020 and July 2023. The impact of COVID-19 on clinical parameters, comorbidities, and laboratory values was evaluated using data obtained from the electronic health records at four designated time intervals. The relative importance of comorbidities, testing preferences, and significant predictors of survival was ascertained. RESULTS: The majority of leukemic COVID-19-infected patients, primarily detected through PCR tests, were diagnosed with acute lymphoblastic leukemia (70.8%). The hematological and biochemical parameters exhibited stability, except for a brief increase in ALT and a sustained rise in AST. These changes were not statistically significant, and parameters remained normal at all time points. Additionally, an increase in monocyte count was shown at time point-3, as well as platelet counts at time point 2. CONCLUSION: While this study did not detect statistically significant effects of COVID-19 on biochemical and hematological parameters in acute leukemia patients, further investigation is needed to fully understand the potential adverse reactions and modifications following COVID-19 infection.

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OBJECTIVE: To evaluate if the comorbidity and coinfections presented by SARS-CoV-2 infection vs. COVID-19 impact our Mexican children. METHOD: Prospective and observational study that included the 2020-2021 peak influenza season. All patients with a diagnosis of infection by SARS-CoV-2 vs. COVID-19 who were admitted to the Hospital Infantil de Mexico were analyzed. Real-time RT-PCR for SARS-CoV-2 was performed in all patients, determining E, RdRp and RP genes and protein N, as well as RT-PCR for detection of respiratory viruses. RESULTS: The inclusion criteria were met by 163 patients. The group with the highest risk of becoming ill was adolescents (40.4%), followed by schoolchildren and preschoolers (21.4% and 19.6% of the cases, respectively). There were three cases with viral coinfection: two (1.2%) with parvovirus B-19 and one (0.6%) with herpes type I; another two (1.2%) showed bacterial coinfection. The main comorbidity were obesity, acute lymphoblastic leukemia and arterial hypertension. Regarding mortality, we only had four cases (2.4%). CONCLUSIONS: Obesity, cancer, hypertension, heart disease and diabetes are comorbidity present in our patients, as referred to in literature, but not coinfections. In our study, we did not have any associated mortality related to comorbidity.

OBJETIVO: Evaluar el impacto de la comorbilidad y de las coinfecciones presentadas por la infección por SARS-CoV-2 vs. COVID-19 en niños mexicanos. MÉTODO: Estudio prospectivo y observacional que comprendió la temporada alta de influenza 2020-2021, analizando todos los pacientes con diagnóstico de infección vs. enfermedad por SARS-CoV-2 vs. COVID-19 que ingresaron al Hospital Infantil de México. Se realizó en todos RT-PCR en tiempo real para SARS-CoV-2, determinando gen E, gen RdRp, gen RP y proteína N, y RT-PCR multiplex para detección de virus respiratorios. RESULTADOS: Los criterios de inclusión los cumplieron 163 pacientes. El grupo con mayor riesgo de enfermar fueron los adolescentes (40.4%), seguidos de los escolares y preescolares (21.4% y 19.6% de los casos, respectivamente). Hubo tres casos con coinfección viral: dos (1.2%) con parvovirus B-19 y uno (0.6%) con herpes tipo I; hubo otros dos (1.2%) con coinfección bacteriana. La principal comorbilidad correspondió a obesidad, leucemia linfoblástica aguda e hipertensión arterial. En cuanto a mortalidad, solo hubo cuatro casos (2.4%). CONCLUSIONES: Obesidad, cáncer, hipertensión, cardiopatías y diabetes constituyen la comorbilidad en nuestros pacientes, como se refiere en la literatura, no así las coinfecciones. En nuestro estudio no hubo casos de mortalidad relacionada con la comorbilidad.

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OBJECTIVE: To analyze the characteristics and prognosis of patients with mucormycosis after chemotherapy for acute leukemia, and to strengthen understanding of the disease. METHODS: 7 cases of acute leukemia (AL) patients diagnosed with mucormycosis by metagenomic next generation sequencing (mNGS) after chemotherapy at the First Affiliated Hospital of Bengbu Medical College from October 2021 to June 2022 were collected, and their clinical data, including clinical characteristics, diagnosis, treatment, and prognosis, were retrospectively analyzed. RESULTS: Among the 7 patients with AL complicated with mucormycosis, there were 3 males and 4 females, with a median age of 52(20-59) years. There were 6 cases of acute myeloid leukemia (AML) and 1 case of acute lymphocytic leukemia (ALL). Extrapulmonary involvement in 4 cases, including 1 case suspected of central nervous system involvement. The median time for the occurrence of mucor infection was 16(6-69) days after chemotherapy and 19(14-154) days after agranulocytosis. The main clinical manifestations of mucormycosis were fever (7/7), cough (3/7), chest pain (3/7) and dyspnea (1/7). The most common chest CT imaging findings were nodules, patchy or mass consolidation (6/7). All patients were treated with posaconazole or voriconazole prophylaxis during neutropenia phase. 5 patients died within 8 months, and the median time from diagnosis to death was 1 month. CONCLUSION: Although prophylactic antifungal therapy is adopted, patients with acute leukemia still have a risk of mucor infection during the neutropenia phase. Fever is the main manifestation in the early stage of mucor infection. The use of intravenous antifungal drugs alone is ineffective and there is a high mortality rate in acute leukemia patients with mucormycosis.

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A girl in early childhood with no significant medical history developed left eye periorbital oedema and erythema. She was treated with intravenous antibiotics for suspected severe periorbital cellulitis. Despite treatment, the patient's cellulitis progressed into necrotising fasciitis, and she was transferred for ophthalmology review and imaging. A CT scan and eye swab culture-confirmed Staphylococcus aureus periorbital cellulitis. Incidentally, pathology revealed significant pancytopenia suspicious of leukaemia. The patient underwent bone marrow biopsy and was diagnosed with B-cell acute lymphoblastic leukaemia (ALL). A multidisciplinary specialist assessment revealed no ocular evidence of leukaemia and no intraocular concerns. In medical literature, it is consistently found that cases of ALL initially manifesting as proptosis or eyelid oedema are invariably due to neoplastic infiltration. This case represents unique documentation where periorbital cellulitis is the initial presentation of B-cell ALL, underscoring the necessity to consider periorbital cellulitis as a possible differential diagnosis in ophthalmic manifestations of ALL.

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BACKGROUND Nephrogenic diabetes insipidus (NDI) is a rare renal disorder that can be congenital, and is caused by mutations in either aquaporin 2 or arginine vasopressin receptor 2, or it can be secondary to kidney disease or electrolyte imbalance. The clinical signs of NDI include polyuria, compensatory polydipsia, hypernatremic dehydration, and growth retardation without prompt treatment. In this report, we present the case of a patient with congenital NDI who was later diagnosed with acute lymphoblastic leukemia (ALL). With dexamethasone treatment, he had uncontrolled polyuria and polydipsia. Our aim was to concentrate on the impact of steroids on the kidneys. CASE REPORT Our patient presented at the age of 9 months with signs of severe dehydration that were associated with polyuria. His laboratory examinations revealed hypernatremia and decreased urine osmolality. He was diagnosed with NDI and his exome sequence revealed a homozygous mutation at the nucleotide position AQP2 NM_000486.6: c.374C>T (p.Thr125Met). He was treated with hydrochlorothiazide and amiloride. Then, at age 19 months, he presented with gastroenteritis and a complete blood count (CBC) showed high white blood cell count and blast cells. He was diagnosed with (ALL) and began receiving chemotherapy, during which again developed polydipsia and polyuria, which could not be controlled with an increased dosage of hydrochlorothiazide. CONCLUSIONS We report a rare case of NDI caused by a missense mutation in the aquaporin 2 gene. One year later, the child developed ALL, and treatment with dexamethasone led to an uncompensated state of polydipsia and polyuria.

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BACKGROUND: Peripheral neuropathy due to chemotherapeutic drugs causes alterations in ankle movement during gait. This study aimed to describe the spatiotemporal parameters and ankle kinematics during gait in schoolchildren with acute lymphoblastic leukemia with clinically suspected peripheral neuropathy. METHODS: In children with acute lymphoblastic leukemia in the maintenance phase, we calculated spatiotemporal and kinematic parameters of the ankle during gait using Kinovea® software. Furthermore, we identified alterations in the parameters obtained considering the values of the normality data from a stereophotogrammetry system as the reference values. Finally, we represented the kinematic parameters of the ankles calculated with Kinovea® compared to the normality values of the stereophotogrammetry. FINDINGS: We evaluated 25 schoolchildren; 13 were male (52.0%) with a median age of 88.0months and a median of 60.0 weeks in the maintenance phase, and 54.8% were classified as standard risk. Spatiotemporal parameters: cadence (steps/min), bilateral step length (m), and average gait speed (m/s) in ALL children were significantly lower than reference values (p < 0.001). Except for right mid-stance and bilateral foot strike, initial swing showed that both ankles maintained plantar flexion values during gait, significantly lower in ALL patients (p < 0.05). INTERPRETATION: We identified spatiotemporal and kinematics alterations in schoolchildren with acute lymphoblastic leukemia during all phases of the gait suggestive of alteration in ankle muscles during movement, probably due to peripheral neuropathy; nevertheless, our results should be taken with caution until the accuracy and reliability of Kinovea® software as a diagnostic test compared to the stereophotogrammetric system in children with ALL and healthy peers is proven.

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Choanephora infundibulifera is a member of the Mucorales order of fungi. The species is associated with plants as a saprophyte or parasite and may be responsible for spoilage or disease but is an uncommon cause of human infection. We describe C. infundibulifera rhinosinusitis in a young man with leukemia in Tennessee, USA.

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