[Epithelioid hemangioendothelioma of the liver. A case report].

One case of epithelioid hemangioendothelioma (EHE) of the liver is reported. The problems of a correct diagnosis of this unusual type of vascular tumor are discussed. A final diagnosis can be established only by histologic examination of appropriate material and may be helped by immunohistochemistry and ultrastructural examination.

[Iatrogenic celiac-mesenteric arteriovenous fistulae; with reference to a new case of postgastrectomy arteriovenous fistula].

The authors report a rare case of iatrogenous arteriovenous fistula between left gastric artery and vein, arising after gastric resection. The observation caused a reviewing of the literature (19 cases published, of which only one between left gastric artery and vein) and some remarks about the physiopathology, pathological anatomy, clinics and treatment of such rare diseases. The authors, in their conclusions, emphasize that such arteriovenous fistulas can remain asymptomatic for a long time; they, moreover, with evident effects on the liver physiology, can progressively cause a serious state of portal hypertension, in the genesis of which the time-factor plays a primary role.

[Surgical treatment of caval obstructions].

The vena cava is the seat of obstructive disorders for which direct reparative surgery may sometimes become necessary. S.C.