Asunto(s)
Neurilemoma/diagnóstico , Neoplasias Nasales/diagnóstico , Neoplasias de los Senos Paranasales/diagnóstico , Anciano , Angiofibroma/diagnóstico , Biomarcadores de Tumor/análisis , Diagnóstico Diferencial , Senos Etmoidales/patología , Femenino , Humanos , Imagen por Resonancia Magnética , Obstrucción Nasal/etiología , Invasividad Neoplásica , Neurilemoma/irrigación sanguínea , Neurilemoma/química , Neurilemoma/complicaciones , Neurilemoma/patología , Neoplasias Nasales/irrigación sanguínea , Neoplasias Nasales/química , Neoplasias Nasales/complicaciones , Neoplasias Nasales/patología , Osteólisis/etiología , Neoplasias de los Senos Paranasales/irrigación sanguínea , Neoplasias de los Senos Paranasales/química , Neoplasias de los Senos Paranasales/complicaciones , Neoplasias de los Senos Paranasales/patología , Proteínas S100/análisis , Seno Esfenoidal/patología , Tomografía Computarizada por Rayos XAsunto(s)
Adenocarcinoma/diagnóstico , Neoplasias Gastrointestinales/diagnóstico , Tumores del Estroma Gastrointestinal/diagnóstico , Neoplasias Primarias Múltiples/diagnóstico , Neoplasias del Recto/diagnóstico , Adenocarcinoma/diagnóstico por imagen , Adenocarcinoma/cirugía , Anciano , Neoplasias Duodenales/diagnóstico , Neoplasias Duodenales/diagnóstico por imagen , Neoplasias Duodenales/cirugía , Femenino , Neoplasias Gastrointestinales/diagnóstico por imagen , Neoplasias Gastrointestinales/cirugía , Tumores del Estroma Gastrointestinal/diagnóstico por imagen , Tumores del Estroma Gastrointestinal/cirugía , Humanos , Neoplasias Primarias Múltiples/diagnóstico por imagen , Neoplasias Primarias Múltiples/cirugía , Radiografía , Neoplasias del Recto/diagnóstico por imagen , Neoplasias del Recto/cirugíaRESUMEN
Yolk sac tumours are rare germinal neoplasms that often arise in ovary and testis. Extragonadal localisations such as mediastinum, retroperitoneum, brain and vagina are uncommon. Primary intraperitoneal tumours are exceedingly rare. We report a case of a 16-year-old girl who underwent laparotomy for an acute abdominal pain and circulatory dysfunction. Abdominal exploration disclosed a large mass involving mesentery of the transverse colon associated to three hepatic nodules and abundant peritoneal bleeding. Segmental hepatic resection was performed and the mesenteric mass was removed. Microscopic examination of the pathologic specimen concluded to a yolk sac tumour. Patient underwent intensive chemotherapy; she's free of disease 2 years after diagnosis. Through this case, clinicopathologic features of this rare neoplasm will be discussed.
Asunto(s)
Tumor del Seno Endodérmico/patología , Neoplasias Peritoneales/patología , Adolescente , Femenino , HumanosRESUMEN
Malignant germ cell tumors of the ovary are rare representing 3% of all ovarian neoplasms. Hence, they are the most common ovarian malignancy in girls and young women and account for approximately two-thirds of the ovarian cancers that occur in the first two decades of life. Germ cell tumors constitute a heterogeneous group of tumors and are often mixed associating at least two different tumoral components. Exceptionally, sarcomatous areas can be found. We present a case of a 15-year old girl admitted for a voluminous left ovarian mass revealed by pelvic pain. Pathological examination of the dissected material revealed the tumor to be a mixed germ cell tumor (immature teratoma and yolk sac tumor) with rhabdomyosarcomatous component of embryonal type. Clinico-pathological characteristics of such ovarian tumors will be discussed with emphasis on diagnostic difficulties.
Asunto(s)
Neoplasias de Células Germinales y Embrionarias/patología , Neoplasias Ováricas/patología , Femenino , Humanos , Rabdomiosarcoma/patologíaRESUMEN
Primary mantle cell lymphoma of the digestive tract is uncommon; it rarely involves the stomach and generally manifests as a lymphomatous polyposis. Isolated gastric localization is exceedingly rare. We present a case of a 57-year-old man who presented with a six-month history of atypical epigastric pain. Endoscopy revealed a large ulceration of the gastric mucosa. Histological examination of the biopsied specimens concluded to a marginal zone B-cell lymphoma (MALT-type) of low-grade. Patient underwent two courses of anti-Helicobacter pylori therapy followed by chemotherapy, without endoscopic amelioration. Histological control showed the persistence of a nodular lymphomatous proliferation that respects glands. It was made of monotonous small cells reactive with CD5 and cyclin D1. The diagnosis of gastric mantle cell lymphoma was made. No other digestive or nodal localization was found. Patient underwent intensive chemotherapy anti-CD20; he was free of disease three years after diagnosis. Primary mantle cell lymphoma of the stomach is an uncommon neoplasm. Diagnosis is often difficult and requires the use of CD5 to exclude a MALT-cell lymphoma, which is much more frequent in this location.