Gallbladder: A rare primary site for small cell carcinoma

Autor: Krishnendu Mondal, Rupali Mandal, Dilip Chandra Barman
Rok vydání: 2015
Předmět:
Zdroj: Oncology, Gastroenterology and Hepatology Reports. 4:21
ISSN: 2348-3113
DOI: 10.4103/2348-3113.139629
Popis: Neuroendocrine tumors (NETs) are an extremely rare entity in gallbladder (GB), occurring in approximately 0.5% cases of NETs from all sites. In the present case report, a 42-year-old male presented with recurrent right upper quadrant pain for 2 months. Abdominal ultrasound revealed a small nodular swelling in the GB. On aspiration cytology that appeared as individual small tumor cells mostly in dispersed population and frequent nuclear molding within cell aggregates in a necrotic background. The patient was diagnosed as NET of GB. Histopathology revealed; uniform small rounded cells arranged in peritheliomatous pattern with intervening areas of massive necrosis. Nuclear molding, salt-pepper nuclear chromatin and frequent mitoses were also evident. Immunohistochemistry with chromogranin confirmed the diagnosis of small cell carcinoma.
Databáze: OpenAIRE