[Pancreatic insufficiency: an infrequent manifestation of primary hyperparathyroidism]. / Insuficiencia pancreática: una manifestación infrecuente del hiperparatiroidismo primario.

A case of malabsorption of pancreatic etiology secondary to primary hyperparathyroidism (HPT) is reported. Normalization of calcemia was achieved with parathyroidectomy and oral administration of pancreatic enzymes was initiated. HPT is an infrequent cause of pancreatic inflammatory disease. Although its association is controversial, its inclusion among the causes of exocrine pancreatic failure allows correct diagnosis and therapeutic management with a favorable prognosis.

[Recurrent rectorrhagia caused by angiodysplasia of the colon localized exclusively by scintigraphy with Tc-99m red blood cells]. / Rectorragia recidivante por angiodisplasia de colon, localizada exclusivamente mediante gammagrafía con 99mTc-hematíes.

A case of angiodysplasia of the colon with clinical manifestation of massive rectal bleeding is presented. The activity and the severity of the life-threatening bleeding episode led to emergency exploratory laparotomy with intraoperative colonoscopy which was not diagnostic. Three years later, following multiple recurrent bleeding episodes and non diagnostic explorations, the localization of the hemorrhage was obtained by abdominal scintigraphy with 99mTc-red blood cells. Surgical removal of the affected area achieved definitive cure.

[Ulcerative colitis and colonic angiodysplasia associated with a lower digestive hemorrhage. Their diagnosis by 99-technetium-labelled red blood cells]. / Colitis ulcerosa y angiodisplasia de colon, asociadas en una hemorragia digestiva baja. Diagnóstico mediante hematíes marcados con 99mtecnecio.

We describe a case of a patient with previously diagnosed of ulcerative colitis, who was admitted to the hospital because of rectal bleeding and abdominal pain. A mild active colitis was reported by colonoscopy with biopsy. Rectal bleeding relapsed, and an arteriovenous malformation in the transverse colon compatible with angiodysplasia was located by early vascular scintigraphy with 99m-technetium-labeled red blood cells. This finding was confirmed by selective arteriography. Four months after hemicolectomy, the patient is free of rectal bleedings. Labeled red blood cell scintigraphy may be useful to differential diagnosis of lower digestive hemorrhage.