[Chronic ulcerative enteritis. Apropos of a case]. / Enteritis ulcerativa crónica. A propósito de un caso.

A 40-year-old patient with clinical manifestations of impaired general status, abdominal pain and signs of malabsorption of six months duration was diagnosed as adult celiac disease. Treatment was initiated with a gluten-free diet and there was improvement. Later, in spite of the patient's compliance with dietary treatment, he suffered two episodes of intestinal obstruction. In the first episode the symptomatology remitted with intestinal rest, parenteral feeding and steroids, but clinical manifestations persisted in spite of medical treatment so exploratory laparotomy was realized. On pathological study were found ulcers that affected the mucosa and submucosa, inflammatory infiltrate without granulomas, and partial villous atrophy in the adjacent non-ulcerated mucosa, all compatible with a nongranulomatous ulcerative enteritis. The course was torpid and the patient died in a few months.

[Angioimmunoblastic lymphadenopathy. Case report with ultrastructural study (author's transl)]. / Linfadenopatía angioinmunoblástica. Aportación de un caso con microscopia electrónica.

Angioimmunoblastic lymphadenopathy is a rare clinical entity, first described in 1974, characterized by asthenia, anorexia, fever, sweating, generalized lymph node enlargement, hepatosplenomegaly, rash, hypergammaglobulinemia, and often Coomb's positive hemolytic anemia. Main histopathologic findings are lymphoplasmocytic and immunoblastic proliferations, increased vascular neshwork and interstitial granular PAS positive material deposits. A lymph node excised from a woman with angioimmunoblastic lymphadenopathy was examined under electron microscopy. Results of ultrastructural study are compared to the typical histologic pattern observed under light microscopy. Analysis of the cellularity and the significance of fibrous collagen found in the interstitial PAS positive material are commented on.