[Cytomegalovirus acalculous cholecystitis in an AIDS patient]. / Colecistitis alitiásica por citomegalovirus (CMV) en paciente con SIDA.

We report a case of acalculous cholecystitis in an AIDS patient, that appeared with insidious onset, abdominal right upper quadrant pain and fever. Cholecystectomy was performed and CMV inclusions were observed in tissue sections. CMV acalculous cholecystitis is an uncommon condition associated to the acquired immunodeficiency syndrome. It should be considered, especially when abdominal pain and fever are present in marked immunosuppressed AIDS patients. Unfortunately, a limited experience in treatment, either medical or surgical, was reported. In our case, the response to surgical procedure was successful, disappearing the abdominal pain and the fever. The patient refused both ganciclovir and foscarnet therapy.

[Tricuspid atresia with hypoplasia of aortic isthmus in absence of transposition of great vessels (author's transl)]. / Atresia tricúspide con hipoplasia del istmo aórtico en ausencia de transposición de los grades vasos.

A case of tricuspid atresia with a concordant ventriculoarterial connection associated with hypoplasia of the aortic isthmus and malformation of left atrioventricular valve is presented. Hyoplasia of aortic isthmus in absence of transposition of great vessels was explained by a posterior deviation of infundibular septum that reduced subaortic outflow tract and created an ample bulboventricular orifice. In the left atrioventricular valve an anterolateral papillary muscle that was prolonged in a thick chorda tendineaee fused to ventricular face of the cusp up to its insertion in the atrioventricular ring was observed. A systolic murmur of high tonality compatible with regurgitation of the left atrioventricular valve and a notch that was registered in postmortem angiography were attributed to this anomalous chorda tendinea. In the posterior wall of the heart there were two descending coronary arteries. One descended fro the crux cordis; the other, to its right, adjacent ot the acute margin, followed the insertion of the trabecular septum, delimited the outlet chamber, and was anastomosed to the anterior descending coronary artery.

[Sarcomatoid renal carcinoma]. / Carcinoma renal sarcomatoide.

The authors present a case of sarcomatoid kidney adenocarcinome of the fibrosarcomatoid kind. They stress the importance and difficulty of making a differential diagnosis between the sarcomatoid type of kidney adenocarcinomas and pure sarcomas of the kidney, this being an entirely histopathological and extremely complex diagnosis. They comment upon the possible histogenesis in the sense that they may be sarcomatoid areas deriving from the stroma or from a cellular metaplasia of the adenocarcinoma.

[Renal cortical rest pseudotumor]. / Pseudotumor renal "cortical rest".

The authors present a case of kidney pseudotumour and stress the difficulty of reaching a final diagnosis in relation to the course of therapy.