Roxanita
10-25-2004, 06:11 PM
A 50-year-old woman is evaluated for occult blood in the stool. Colonoscopy shows a 5-cm sessile mass with a velvety surface that projects about 2 cm above the mucosa of the rectosigmoid. Microscopic examination of tissue obtained on biopsy of the mass shows papillae composed of delicate fibrovascular cores covered by dysplastic columnar epithelium. This patient is at increased risk for which of the following colonic neoplasms?
A) Adenocarcinoma
B) Carcinoid
C) Fibrosarcoma
D) Leiomyosarcoma
E) Lymphoma
F) Squamous carcinoma
A) Adenocarcinoma
B) Carcinoid
C) Fibrosarcoma
D) Leiomyosarcoma
E) Lymphoma
F) Squamous carcinoma