RESUMO
BACKGROUND: Pseudomyxoma peritonei is an uncommon condition with an estimated incidence of one to two per million (worldwide) per year. It is characterized by the peritoneal deposition of mucinous tumors, most commonly of the appendix, and occasionally from the ovary, coupled by mucinous ascites. CASE PRESENTATION: We report the case of a 76-year-old woman who presented with increased abdominal girth and dyspnea for 2 weeks. She was diagnosed as a case of pseudomyxoma peritonei. She was submitted to right oophorectomy, omentectomy, and pseudomyxoma debulking. The histology was compatible with a mucinous tumor of colorectal/appendicular origin. Chemotherapy was not administered because of her functional status. Two years and 8 months later, she refers with postprandial fullness and has moderate ascites.
RESUMO
The oncocytic tumors of the adrenal gland are rare. To date there's only 147 cases published. The authors present a case of a 34 year-old man admitted to the hospital with lumbar pain and fever. At medical examination a mass was found in the left upper quadrant of the abdomen. The hormonal measurements of the adrenal gland were normal and the abdominal angio CT showed a left retroperitoneal lesion measuring 145 x 157 x 128 mm with extensive necrotic and hemorrhagic areas. The patient underwent a complete surgical resection of the lesion. The mass weighted 1495g and the histological exam revealed an oncocytic tumor of the adrenal gland with uncertain potential. Most of the oncocytic tumors are non functioning and must be considered in the differential diagnosis of adrenocortical tumors. The biologic behavior and the prognosis of these tumors are variable and still need a better definition. Due to the rarity of these tumors the authors made a revision on the published bibliography.
Os tumores oncocíticos da supra-renal são neoplasias pouco frequentes. Atualmente existem 147 casos publicados. Os autores descrevem o caso de um homem de 34 anos admitido no hospital por lombalgias e febre. À observação identificava-se massa no quadrante superior esquerdo do abdomen. Os doseamentos das hormonas da supra-renal foram normais e a angiotomografia abdominal mostrou lesão retroperitoneal esquerda com 145 x 157 x 128 mm com extensas áreas necrosadas e hemorrágicas. O doente foi submetido a ressecção cirúrgica completa da lesão. O tumor pesava 1495 g e o exame anatomo-patológico concluiu tratar-se de tumor oncocítico da supra-renal com potencial maligno incerto. A maioria dos tumores oncocíticos é não funcionante e devem ser considerados no diagnóstico diferencial de tumores do córtex da supra-renal. O comportamento biológico e o seu prognóstico são variáveis e ainda estão mal estabelecidos. A propósito da raridade deste tipo de tumores os autores fazem uma revisão da bibliografia publicada.
