[Pseudotumoral hepatic tuberculosis]. / Tuberculosis hepática pseudotumoral.

In the absence of active pulmonary disease, hepatic focal tuberculosis is a rare form of tuberculosis. We present a case of pseudotumoral hepatic tuberculosis in a 44-year-old man; diagnosis is difficult because of its radiological similarity with primary or metastatic hepatic cancer. Percutaneous biopsy with US or CT guidance offers a good diagnostic alternative to laparoscopy. Histology examination revealed a tuberculoid granulomatous lesion. The disease has a good response to tuberculostatic treatment.

[Collagenous colitis as a cause of acute diarrhea]. / Colitis colágena como causa de diarrea aguda.

Collagenous colitis is a newly recognized entity presenting clinically as chronic watery diarrhea and histologically by a thickened subepithelial collagenous band in colonic biopsies. We report the case of a middle aged woman affected of acute diarrhea in whom, after ruling out its main etiologies, the diagnosis of collagenous colitis was made.

[Acute pancreatitis caused by salazopyrine. An unusual association]. / Pancreatitis aguda por salazopirina. Una asociación excepcional.

A 28 year old patient with a moderate attack of ulcerative colitis was treated with sulfasalazine. Ten days after, the patient was admitted with clinical and laboratory symptoms of acute pancreatitis (serum amylase 631 u., serum lipase 1080 u. urine amylase, 910 u.). Upon recovery, sulfasalazine was reintroduced at lower dosage (2 Gm/day), and the patient repeated the clinical and biological picture of acute pancreatitis (serum amylase of 710 and lipase 1010 u.) CAT scan showed pancreatic edema and ultrasonography demonstrated a normal gallbladder. The symptoms and laboratory abnormalities disappeared in three days after stopping sulfasalazine. The patient has been followed-up for one year without recurrence of pancreatitis on maintenance treatment with 1.5 Gm 5-Aminosalicylic acid.