Diarrhea in an immunocompromised patient: endoscopic findings.

Fig. 1. Computed tomography scan showing data consistent with a tumoral lesion (A). Colonoscopy showing two ulcers in right and left colon of 3 and 2.5 cm (B and D). After a negative immunohistochemistry for CMV, we can see the presence of Cryptosporidium causing damage to the crypts (C). A 56-year old man, HIV negative, submitted to heart transplantation six months previously, treated with everolimus, tacrolimus, mycophenolate and steroids was admitted because of diarrhea and deterioration of general condition in the last month. After an initial colonoscopy with nonspecific findings and suspecting a possible drug side effect, immunosuppres-sive therapy was changed without clinical improvement. An abdominal computer tomography scan showed data consis