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Normal Mucosa on Sigmoidoscopic Examination

Burton I. Korelitz, MD; Sheldon C. Sommers, MD

JAMA. 1977;237(25):2742-2744.

Abstract
Of 99 patients with Crohn's disease whose rectal segment appeared normal on sigmoidoscopy, there was histologic inflammation in 45% and features characteristic of Crohn's disease in 30% of rectal biopsy specimens. Granulomas were found in 18% of patients, including 13% of those with ileitis, 13% of those with ileocolitis, and 37% of those with colitis. Eleven of the 17 granulomas were small, undemarcated microgranulomas. Rectal biopsy specimens are of value to confirm the diagnosis in Crohn's disease and to determine the state of clinical activity even when the sigmoidoscopic appearance is normal.

(JAMA 237:2742-2744, 1977)

Author Affiliations
From the Departments of Medicine (Dr Korelitz) and Pathology (Dr Sommers), Lenox Hill Hospital, New York.

Footnotes
Reprint requests to Department of Pathology, Director of Laboratories, Lenox Hill Hospital, 100 E 77th St, New York, NY 10021 (Dr Sommers).

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