[On the posterior XXXX ].

@entity1 @entity1188 @entity6852 @entity385
The article deals with @entity1188 in the territory of the posterior cerebral arteries. For a better understanding of pathoanatomical and pathogenetical factors influencing @entity385 embryological, orthological and pathological data on the posterior cerebral artery and on its leptomeningeal anastomoses to other cerebral arteries were reported in the first two chapters. Chapter 3 includes a review of findings on the predilection sites for occlusions of the posterior cerebral artery, on the relative incidence and also on pathogenetical factors of @entity385 . The few papers especially dealing with the @entity385 in the @entity6852 were indicated likewise. Chapter 4 contains our own findings on 180 @entity1 with @entity385 , who were all examined with @entity6852 (the slices were done parallel to the fronto-occipital line); data on age, sex and hemispheric distribution of the sample and on combinations with other @entity385 were reported. 159 @entity385 (of 144 @entity1 including 15 with @entity1188 ) could be described "anatomically". As to the maximum @entity1188 areas referred to 8 defined slice levels, differences to the findings reported so far in the literature were observed; they comprise the (ventro-) lateral borders of the @entity1188 areas including the longitudinal fibre projections (e.g. the optic radiation), the cranial extension of the @entity385 and the splenial as well as thalamic lesions. The @entity385 were classified as uni-territorial, bi-territorial and subtotal subtypes. Among the uni-territorial @entity385 calcarine @entity1188 outweighed those in the territory of the posterior temporal (temporo-occipital) artery and of the parieto-occipital artery by a ratio of 2:1:1. The overlap areas of the uni-territorial @entity385 are shown in figures. The second, less frequent bi-territorial subtype is a combination of @entity1188 in the territories of the calcarine and the parieto-occipital arteries. The calcarine, the medio-basal and the subtotal subtype occurred in about 23% of the "anatomically" evaluated @entity385 . At length, thalamic and @entity1188 associated with any of the subtypes were observed in about a quarter of all @entity385 . As to the subtotal @entity385 additional thalamic and @entity1188 can be expected in about 40%.
