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  • Author or Editor: Ove Hassler x
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Calcifications in the Intracranial Arachnoid

A Microradiological and Histological Study of the Occurrence and Appearance of Calcifications, with Special Reference to the Trigeminal Nerve

Ove Hassler

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Ove Hassler

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Ove Hassler

✓ Ten saccular aneurysms obtained postmortem from large cerebral arteries were examined with ultrasoft x-rays. At the border toward the aneurysms the elastic lamella generally showed duplication, thickening, and fragmentation, with irregular variations in the absorption of ultrasoft x-rays. Calcification could only be discovered in the intimal collagenous tissue several millimeters from the aneurysm mouth. Eosinophilic substance was found in one case to be markedly radiopaque. The observations support the hypothesis that at the site of a media defect there is a compensatory hypertrophy of the elastic lamella, resulting in degeneration and decay. Fluorescent microscopy of the elastic lamella gave similar results.

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Blood Supply of Cervical Spinal Cord in Man

A Microangiographic Cadaver Study

Ian M. Turnbull, Alf Brieg and Ove Hassler

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Alf Breig, Ian Turnbull and Ove Hassler

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Hans Bolander, Ove Hassler, Bengt Liliequist and Kurt A. West

✓ The authors report a case of subarachnoid hemorrhage in an 11-month-old infant with tragic outcome. Radiological investigation showed an anterior communicating aneurysm, and postmortem examination confirmed the aneurysm to be a so-called “berry” aneurysm. There were also typical signs of fibromuscular hyperplasia of the renal arteries. The microscopic findings are discussed. In view of the rarity of both aneurysms and fibromuscular hyperplasia in such a small child, a possible association of these entities suggested by several earlier investigators is reviewed.