RESUMEN
El linfoma folicular de tiroides es una entidad rara que representa menos del 2% de los linfomas extranodales y cuyo principal factor de riesgo es la tiroiditis de Hashimoto. Suele afectar con mayor predisposición a pacientes adultos mayores, en los que con frecuencia se presenta como una masa de crecimiento rápido con compromiso de las estructuras adyacentes en el cuello. Sin embargo, dada su rara incidencia, esta patología debe ser sospechada por el clínico para un diagnóstico temprano oportuno. Aunque en la actualidad no existen guías de manejo estandarizadas para esta entidad, acostumbra tener buena respuesta a radioterapia y quimioterapia. El presente caso describe la historia de un paciente con una recaída de linfoma no Hodgkin de tipo folicular de alto grado localizado en tiroides que se presentó a urgencias con disfonía, parálisis bilateral de cuerdas vocales, cambio en el tono de la voz y disfagia, con el antecedente de un linfoma folicular de alto grado en localización retroperitoneal y en remisión luego de 8 ciclos de quimioterapia con rituximab, ciclofosfamida, doxorubicina, vincristina y prednisona, el cual presentó citorreducción luego del tratamiento con quimioterapia con el protocolo de rituximab, dexametasona, citarabina y cisplatino.
Follicular thyroid lymphoma is a rare entity that represents less than 2% of extranodal lymphomas; and whose main risk factor is Hashimoto's thyroiditis. This tends to affect older adult patients with greater predisposition, where it usually presents as a rapidly growing mass with compromise of the adjacent structures in the neck. However, given its rare incidence, this pathology should be suspected by the clinician for an early diagnosis. Although there are currently no standardized management guidelines for this entity, it usually responds well to radiotherapy and chemotherapy. The present case describes the history of a patient with a relapse of high-grade follicular-type NHL located in the thyroid who presented to the emergency room with dysphonia, bilateral paralysis of the vocal cords, change in tone of voice and dysphagia, with the history of high-grade follicular lymphoma in retroperitoneal location in remission after 8 cycles of chemotherapy with Rituximab, Cyclophosphamide, Doxorubicin, Vincristine and Prednisone, which presented cytoreduction after treatment with chemotherapy with the protocol Rituximab, Dexamethasone, Cytarabine and Cisplatin.
Asunto(s)
Humanos , Masculino , Persona de Mediana Edad , Linfoma no Hodgkin/diagnóstico por imagen , Linfoma Folicular/diagnóstico por imagen , Glándula Tiroides , Costa RicaRESUMEN
This narrative review, which is based on a systematic literature search following the PRISMA guidelines, provides a general overview of Human T-cell Lymphotropic Virus type 1 (HTLV-1) and associated diseases: Adult T-cell Leukaemia-Lymphoma (ATLL) and HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP) in Latin America, focusing on epidemiology and prevention. Using the published information on HTLV-1, ATLL and HAM/TSP prevalence, we present comprehensive and accurate maps and tables, and developed an algorithm to assist in the prevention of HTLV-1 transmission through breastfeeding while considering socio-economic status. Latin America is an interesting scenario to study HTLV-1 because of the diverse origin of its population. Apart from the expected high prevalence in inhabitants of African ancestry, the presence of endemic foci affecting indigenous populations is particularly striking. ATLL prevention is the biggest challenge in this field. Most ATLL cases are transmitted through breastfeeding; thus, prevention methods to avoid ATLL in endemic countries have to be focused on this. In view of the high inequality in most Latin American countries, reduction in breastfeeding duration, freezing/thawing and pasteurisation of breastmilk can be suitable interventions in poor settings, considering that avoiding the risk of malnutrition and infant mortality must be the priority.
Cette revue narrative, qui repose sur une recherche bibliographique systématique conforme aux recommandations de PRISMA, fournit un aperçu général sur le virus lymphotropique des lymphocytes T humaines de type 1 (HTLV-1) et les maladies associées: Le lymphome leucémique des cellules T d'adulte (ATLL)) et la myélopathie/paraparésie spastique tropicale (HAM/TSP) associée à HTLV-1 en Amérique latine, en se focalisant sur l'épidémiologie et la prévention. En utilisant les informations publiées sur la prévalence de HTLV-1, ATLL et HAM/TSP, nous présentons des cartes et des tableaux complets et précis et avons développé un algorithme pour aider à la prévention de la transmission du HTLV-1 par l'allaitement tout en tenant compte du statut socioéconomique. L'Amérique latine est un scénario intéressant pour l'étude de HTLV-1 en raison de la diversité des origines de sa population. Outre la forte prévalence escomptée chez les habitants de descendance africaine, la présence de foyers endémiques affectant les populations autochtones est particulièrement frappante. La prévention de l'ATLL est le plus gros défi dans ce domaine. La plupart des cas d'ATLL sont transmis par l'allaitement. Ainsi, les méthodes de prévention pour éviter l'ATLL dans les pays d'endémie doivent être concentrées sur cela. Compte tenu de la forte inégalité qui règne dans la plupart des pays d'Amérique latine, la réduction de la durée de l'allaitement, la congélation/décongélation et la pasteurisation du lait maternel peuvent constituer des interventions appropriées dans les milieux pauvres, tout en considérant que la priorité est d'éviter les risques de malnutrition et de mortalité infantile.
Asunto(s)
Infecciones por HTLV-I/epidemiología , Infecciones por HTLV-I/prevención & control , Humanos , América Latina/epidemiologíaRESUMEN
Context: Acute pancreatitis is a inflammatory process of the pancreas. It can be caused by gallstones, metabolic disorders, associated or not with alcohol abuse, or medication. Case Report: A 38-year-oldman was admitted to the hospital because of worsening of nausea, abdominal pain, dizziness and white stool. Patient was diagnosed with severe acute pancreatitis. After six days of hospitalization, patient progressed into hypotension and severe bradycardia, and died. The patient used simvastatin chronically, and was in treat with L-asparaginase, both drugs related to the occurence of acute pancreatitis separately. Naranjo´s probability scale of adverse drug reaction established the causality between these medications and acute pancreatitis as probable. However, due to the absence of reports of causality, the acute pancreatitis is associated with to the use of L-asparaginase with possible drug interactions with simvastatin. Conclusion: It is very important to monitor patients treated with L-asparaginase, throughcareful observation of clinical signs and laboratory follow-up, as well as verification of other medications in use. The AP may have different levels of severity, being indispensable the quick diagnosis and early treatment.
Contexto: Pancreatite aguda é um processo inflamatório do pâncreas. É causada por cálculos biliares, desordens metabólicas, associadas ou não ao uso abusivo de álcool, ou medicamentos. Relato do Caso: Homem de 38 anos foi admitido no hospital em razão do agravamento de náuseas, dor abdominal, tontura e fezes brancas. O paciente foi diagnosticado com pancreatite aguda. Após seis dias de internação, paciente progrediu com hipotensão e bradicardia severa, evoluindo à óbito. O paciente fazia uso crônico de sinvastatina, e estava em tratamento com L-asparaginase, ambos fármacos, de modo separado, são relacionados com a ocorrência de pancreatite aguda severa. O algoritmo de Naranjo para estabelecimento de reação adversa a medicação classificou a causalidade entre as medicações citadas e a pancreatite aguda como provável. Porém, em razão da ausência relatos dessa causalidade, associa-se a pancreatite aguda ao uso de L-asparaginase, com possível interação medicamentosa com sinvastatina. Conclusão: É de suma importância o acompanhamento clínico e laboratorial de pacientes em uso de Lasparaginas e para sinais de pancreatite aguda, sendo imprescindível o rápido diagnóstico e tratamento precoce.