RESUMO
Neuroendocrine tumor is a very heterogenous group arising from the neuroendocrine cells. Especially, large cell neuroendocrine tumor of the ovary is a extremely rare aggressive neoplasm, characteristically arising in association with a surface epithelial tumor. This report describes a mixed type of large cell neuroendocrine carcinoma and adenocarcinoma of the ovary. A 63-year old woman presented with abdominal distension and discomfort underwent staging laparotomy under the impression of ovarian cancer. The operation revealed an small ovarian mass with invasion of multiple region in peritoneal cavity by the tumor. Immunohistochemical and ultrastructural analysis confirmed the neuroendocrine nature of the tumor. The adenocarcinoma in this case is mixture of mucinous and endometrioid type. A diagnosis of stage IIIc mixed large cell neuroendocrine tumor and adenocarcinoma of the ovary was rendered. She is subsequently being treated with Paclitaxel and Carboplatin combination chemotherapy.
Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Adenocarcinoma , Carboplatina , Carcinoma Neuroendócrino , Diagnóstico , Quimioterapia Combinada , Laparotomia , Mucinas , Células Neuroendócrinas , Tumores Neuroendócrinos , Neoplasias Ovarianas , Ovário , Paclitaxel , Cavidade PeritonealRESUMO
Peritoneal tuberculosis is a rare presentation of tuberculosis. The presenting signs and symptoms, imaging examinations and CA-125 status in peritoneal tuberculosis sometimes resemble that of ovarian cancer. Thus, the possibility of peritoneal tuberculosis should be considered in the differential diagnosis of ovarian carcinoma. We report two cases of peritoneal tuberculosis initially suspected as ovarian carcinoma but diagnosed as peritoneal tuberculosis with laparoscopy. Using diagnostic laparoscopy unnecessary laparotomy was avoided. We suggest that diagnostic laparoscopy can be helpful in differential diagnosis between peritoneal tuberculosis and ovarian carcinoma.