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Biomedical subjects

A Hey

Publications and source records attributed to A Hey.

29 records · Page 2Linked to original sources
PubMed1984

[Fetus amorphus].

Explore the source record for details and available documents.

Abnormalities, Severe Teratoid↗
PubMed1980

[Rare complication of fibromuscular dysplasia of the internal carotid artery (author's transl)].

Following resection of an angiographically demonstrated fibromuscular stenosis of the renal artery--the cause of long-standing arteria hypertension--there occurred a thrombotic occlusion of the fibromuscular-dysplastic internal carotid artery from which the 34-year-old woman died. The treatment of choice of fibromuscular stenosis of the renal artery with renovascular hypertension is resection of the stenosis with revascularisation or nephrectomy. Since fibromuscular dysplasia is a generalised vascular disease in which all arteries of the muscular type may participate, angiography of the extra-renal, in particular cervical, arteries should be performed preoperatively in addition to the renal artery angiograms.

Adult↗
PubMedDate not supplied

Embryonal brain neoplasms in the neonatal period and early infancy.

We report on two cases of congenital primitive neuroectodermal tumors located in the posterior cranial fossa. They were symptomatic at birth with occlusive internal hydrocephalus. Clinical investigations had failed to diagnose brain tumors and had led to the suggestion of maldevelopment syndromes. In one of these children a malignant rhabdoid tumor of the kidney was operated at the age of 4 1/2 months. Autopsy revealed medulloblastoma combined with a malignant rhabdoid tumor of the kidney in one case and ependymoblastoma in the other.

Brain Neoplasms↗
PubMedDate not supplied

[Ultrastructural studies of vacuole formation in arterial chorionic vessels of the mature human placenta].

The so called endothelial vacuoles of the human fetal stem arteries are formed by contraction of the tunica muscularis media. The cytoplasm of the smooth muscle cells prolapses through gaps of the basal membrane, found in areas of myoendothelial junctions, into the intima. Perfusion with fixative immediately after delivery prevents the formation of the vacuoles.

Arteries↗