PMC2779291_01
(A, B) Sigmoidoscopic findings indicate the rectal chancres located on the posterior wall of the rectum (broad arrow and narrow arrow). (C, D) Follow-up sigmoidoscopy after 1 month reveals complete regression.
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F1
Sigmoidoscopy in our gastrointestinal endoscopy unit showed two indurated masses of 1.5 to 2 cm on the posterior wall of the middle and lower rectum (Fig. 1A). Follow-up sigmoidoscopy after 1 month showed nearly complete regression of the chancre (Fig. 1B).
(A) Rectal mucosa showing obliterative endarteritis with heavy plasma cell infiltration. (B) Inguinal lymph node showing obliterative endarteritis with heavy plasma cell infiltration.
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F2
Histologic findings of rectal biopsy showed heavy lymphoid hyperplasia without neoplastic changes (Fig. 2A). Additional histologic findings of the left inguinal mass were the same (Fig. 2B).