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World J Gastroenterol. 2012 Nov 14;18(42):6172-6. doi: 10.3748/wjg.v18.i42.6172.

Postoperative retroperitoneal desmoid tumor mimics recurrent gastrointestinal stromal tumor: a case report.

Author information

1
Department of Anatomic Pathology, Buddhist Dalin Tzu Chi General Hospital, Chiayi 62247, Taiwan.

Abstract

Desmoid tumor is a locally invasive, myofibroblastic, nonmetastatic tumor. Its pathogenesis remains unclear and it may involve genetic abnormalities, sex hormones and traumatic injury, including surgery. Postoperative intra-abdominal desmoid tumor is rare, especially in the retroperitoneum. We report a case of postoperative retroperitoneal desmoid tumor that developed 29 mo after the first excision of a gastrointestinal stromal tumor. Sporadic trauma-related intra-abdominal desmoid tumors reported in the English literature are also reviewed. Despite an extremely low incidence, postoperative desmoid tumor should be considered in the differential diagnosis when a recurrent neoplasm is found at least one year after operation. However, it is a clinical challenge to distinguish recurrent malignant neoplasms from desmoid tumors, and surgical resection is the treatment option depending on the anatomic location.

KEYWORDS:

Desmoid tumor; Gastrointestinal stromal tumor; Recurrence; Retroperitoneum; Surgery

PMID:
23155350
PMCID:
PMC3496898
DOI:
10.3748/wjg.v18.i42.6172
[Indexed for MEDLINE]
Free PMC Article
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