Crohn's disease and ulcerative colitis are well known risk factors of intestinal cancer in relation to the extent and duration of disease. Rarely, small bowel cancer can develop after a longstanding inflammation of Crohn's disease with a relatively higher incidence than the general population. Signet ring cell carcinoma is a rare condition among intestinal cancers, and the diagnosis or detection is more difficult if the cancer originates from the small bowel. We report a case of a 30-year old female in whom signet ring cell carcinoma of ileum was diagnosed after a 15-year history of Crohn's disease.
Adult ; Carcinoma, Signet Ring Cell/*diagnosis/etiology/pathology ; Colonoscopy ; Crohn Disease/*complications/diagnosis/pathology ; Female ; Humans ; Ileal Neoplasms/*diagnosis/etiology/pathology ; Tomography, X-Ray Computed

We report a rare case of giant mesenteric lipoma presenting with colicky abdominal pain. A 29-yr-old woman underwent laparoscopic resection for a giant mesenteric lipoma causing compression of the ileal loop. The resected ileal segment was encased by a giant fatty tissue, and normal mucosal fold patterns of the resected ileum were effaced by the mass. Microscopically, the mass was characterized by homogenous mature adipose tissue without cellular atypia, which was compatible with the diagnosis of a mesenteric lipoma. Despite the benign nature of this tumor, total excision with or without the affected intestinal loop should be considered if intestinal symptoms such as abdominal pain are present.
Abdominal Pain/*etiology ; Adipose Tissue/pathology ; Adult ; Diagnosis, Differential ; Female ; Humans ; Ileal Diseases/etiology ; Laparoscopy ; Lipoma/complications/*diagnosis/surgery ; *Mesentery/pathology ; Peritoneal Neoplasms/complications/*diagnosis/surgery ; Tomography, X-Ray Computed

Gastrointestinal stromal tumor (GIST) is an uncommon mesenchymal tumor of the gastrointestinal tract and is generally located in the stomach and small intestine. They usually present with abdominal pain, gastrointestinal bleeding, and palpable mass. Some patients present with rare symptoms that are more common in malignant GIST. Malignant GIST combined with a liver abscess has not been reported yet in the literatures. We report a case of 67-year-old woman who suffered from liver abscess combined by malignant GIST with central necrosis and fistula in the ileum. She complained of fever, chills, and abdominal pain. Abdominal CT scan showed huge liver abscess and ileal mass with air pocket. Small bowel series showed contrast material filling into the ileal GIST mass. An operation was performed and the final diagnosis was malignant GIST of the ileum with invasion into the sigmoid colon and urinary bladder.
Aged ; Diagnosis, Differential ; Female ; Gastrointestinal Stromal Tumors/*diagnosis/pathology/surgery ; Humans ; Ileal Neoplasms/*diagnosis/pathology/surgery ; Liver Abscess/*etiology ; Neoplasm Invasiveness ; Proto-Oncogene Proteins c-kit/analysis ; Reagent Kits, Diagnostic