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Metastatic ovarian cancer to the gallbladder indicative of the diagnosis


MOJ Clinical & Medical Case Reports
Soumia Berrad, Zineb Benbrahim,Vincent W Lokonga, Lamiae Nouiakh, Hayat Erraichi, Lamiae Amaadour, Karima Oualla, Samia Arifi, Naoufal Mellas

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Abstract

Ovarian cancer is a malignant tumor that usually develops from the surface coating of the ovaries. The most common form is epithelial carcinoma . As a result of its location, and its silent nature responsible for a delay in diagnosis that makes the prognosis rather poor. The usual metastatic sites are the peritoneal cavity, liver and lung. Secondary biliary localization is a rare, even exceptional site. We report the observation of a patient who presented with abdominal pain in the right hypochondrium and progressive vomiting. Abdominal ultrasound revealed a 21 mm gallbladder lithiasis with hepatic steatosis. Abdominal CT scan revealed a large heterogeneous mass with engulfed gallstones. The patient underwent cholecystectomy. Histological study showed moderately differentiated adenocarcinoma and acute cholecystitis. Immunohistochemical staining revealed that the tumor cells were positive for antibodies against CK7, WT1, PAX8 and p53 and negative for CK20 and ER. These results suggest that the tumor was a metastasis of serous ovarian adenocarcinoma. Medical imaging done with abdominal CT showed an ovarian mass with peritoneal carcinosis, serum CA125 was elevated at 97U/ml. Carbohydrate antigen (CA) 19-9 and carcinoembryonic antigen (CEA) levels were normal. The patient received first-line chemotherapy with carboplatin and paclitaxel. After 6 courses of therapy, she achieved a partial clinical, biological and radiological response, in our medical oncology department of the CHU Hassan II from Fez.
 
The interest of the subject is to report the rarity of this entity as well as the radiological, histopathological, prognostic and therapeutic characteristics.

Keywords

ovariancancer, metastatic, gallbladder, chemotherapy, therapeutic difficulty, peritoneal, bloodstream, perhepatichilar lymphadenopathy, extrahepatic bile duct

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