A Resectional Case of Carcinoid Tumor of the Gallbladder

Tadanori Ishikawa, Syunji Mizobuchi¹⁾, Yasunaga Okazaki¹⁾, Yasuhisa Matsumoto¹⁾, Tamotsu Takeuchi²⁾ and Shiro Sasaguri¹⁾

Hofu Institute of Gastroenterology
Department of Thoracic and Cardiovascular Surgery and Regeneration Technology¹⁾ and Department of Pathology²⁾, Kochi University School of Medicine

A 64-year-old woman was admitted to our hospital for further examination, it was known that she had a gallbladder tumor before admission. Abdominal ultrasonography showed an iso-echoic mass lesion about 1 cm in diameter in the neck of the gallbladder. T1-weighted MRI showed an irregular iso-intense mass. Laparoscopic cholecystectomy and frozen section examination were performed. Gallbladder carcinoma was suspected based on the frozen-section findings, but invasion of the muscularis propria was unclear. Macroscopic examination of the resected specimen revealed a mulberry like mass measuring 12×8 mm-size. Microscopic examination of the tumor revealed tumor cells in a trabecular pattern and containing round, hyperchromatic nuclei. The tumor cells were positive for Grimelius staining and immunohistologic chromogranin A staining. The patient is doing well, with no any signs of recurrence, 12 months after the operation.

Key words
carcinoid tumor, gallbladder

Reprint requests
Tadanori Ishikawa Hofu Institute of Gastroenterology
14-33 Ekiminamimachi, Hofu, 747-0801 JAPAN

Accepted
September 28, 2005

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