A case of malignant granular cell tumor in the sigmoid colon.
Granular cell tumor (GCT) is an uncommon, usually benign neoplasm; however, a malignant potential has been described. Malignant GCT is an extremely rare neoplasm showing rapid growth and invasion into adjacent muscles, lymph nodes, or vessels, or even distant metastasis. We recently experienced a case of a histologically benign or atypical but clinically malignant GCT, with invasion of the lymph nodes and vessels in the sigmoid colon, diagnosed by segmental colon resection with lymph node dissection. We also performed a review of relevant medical literature.
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Sang Myung
SM
Choi
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Seung Goun
SG
Hong
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Shin Myung
SM
Kang
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Byung Gi
BG
Chae
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Sung Jin
SJ
Kim
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Pyung Kang
PK
Park
Department of Internal Medicine, SAM Medical Center, Anyang, Korea.
Hyun Sung
HS
Park
Colon; Granular cell tumor; Malignant; Sigmoid colon