Diagnosis of an unusual abdominal presentation of granuloma inguinale by fine needle aspiration cytology.

A 63-year-old Hispanic man from Peru who recently had immigrated to the United States presented with progressive weakness, weight loss, recurrent abdominal pain and passing bright red blood per rectum. Rectal carcinoma was suspected. Biopsies of two lesions in the sigmoid colon showed granuloma inguinale (donovanosis). A computed tomographic scan of the abdomen revealed a large presacral mass. A radiographically guided fine needle aspiration (FNA) of the presacral mass showed findings characteristic of granuloma inguinale. FNA thus proved to be a useful adjuvant in the diagnosis of an unusual case of granuloma inguinale (donovanosis) presenting with a presacral mass that had the radiologic characteristics of a malignant tumor.