[Schwannomas of the stomach]. / Schwannome des Magens.

One benign and one malignant schwannoma of the stomach are presented. The gross appearance, degree of local invasion and the complications are demonstrated by double-contrast radiology technique and CT. Benign schwannomas can only be distinguished from the malignant ones on the basis of histological and immunohistochemical criteria.

[Vascular complications following alloplastic hip replacement (author's transl)]. / Gefässkomplikationen beim alloplastischen Hüftgelenkersatz

Two patients with complications of the pelvic vessels have been seen at our institution after total hip replacement. One had a false aneurysmn of the deep femoral artery, the other presented an arterio-venous fistula. Causes, symptomes and diagnosis of vascular complications during hip replacement are reviewed.