A Case Report of Solitary Hamartomatous Polyp of the Appendix

Takashi Nonaka, Hidetoshi Fukuoka, Hiroaki Takeshita, Terumitsu Sawai, Tomayoshi Hayashi*, Shigekazu Hidaka, Atsushi Nanashima, Tohru Yasutake and Takeshi Nagayasu

Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences
Division of Pathology, Nagasaki University Hospital*

We report a very rare case of hamartomatous polyp of the appendix. A 60-year-old man admitted for an appendiceal tumor found in endoscopy was also found to have a tumor with a stalk in the cecum. Barium enema studied showed polypoid lesions at the cecum, with enhanced computed tomography (CT) indicating a tumor. Based on these findings, we conducted laparoscopy-assisted ileocecal resection . Histologically, the tumor was not malignant and the polypoid showed excessive hyperplasia and a prominent core consisting of branching bands of smooth muscle derived from the muscularis mucosae. The polyp was diagnosed as a hamartomatous polyp.

Key words
hamartoma, appendix, Peutz-Jeghers syndrome

Reprint requests
Takashi Nonaka Surgical Oncology Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences
1-7-1 Sakamoto, Nagasaki, 852-8501 JAPAN

Accepted
January 28, 2009

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