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Topographic relationship of the amygdaloid body to the hippocampal formation and lateral ventricle - MRI study

100%

Narkiewicz O., Biranowska J., Bobek-Billewicz B., Morys J.

Folia Morphologica

1999

tom 58

nr 3

The relationship of the amygdaloid body to the hippocampal formation and lateral ventricle was studied on MRI slabs of brains of 25 volunteers. Considering the presence of the hippocampal formation and/or uncal sulcus on a cross-section three segments of the amygdaloid body were distinguished in rostro-caudal order: prehippocampal, suprahippocampal anterior (preuncal) and suprahippocampal posterior (uncal), each one presenting characteristic features. The lengths of the amygdaloid body and of its segments were calculated. In each segment the great variability of the topographical relations was found. Especially in the suprahippocampal anterior segment the relation of the lateral ventricle to both, the amygdaloid body and hippocampus shows great differences, even between the right and left side.

The shape of the inferior horn of the lateral ventricle in relation to collateral and occipitotemporal sulci

84%

Switka A., Narkiewicz O., Dziewiatkowski J., Morys J.

Folia Morphologica

1999

tom 58

nr 2

The shape of the inferior horn of the lateral ventricle has been investigated in 100 (50right and 50 left) human brain hemispheres which were fixed in 40% formaldehyde solution and cut frontally. It has been found that the shape of the inferior horn depends on the course and depth of the collateral and occipitotemporal sulci. In most cases a part from two main ventricular surfaces: The hippocampal and superolateral, there is one surface more, either the inferior - collateral eminence (Type I - 97% of cases in the posterior part of the inferior horn, 49%- in the middle and 42%- in the anterior part) or the inferolateral, adjacent to the occipitotemporal sulcus ( Type II- 0%, 26% and 35%, respectively). In a few cases both collateral eminence and inferolateral surfaces were present (Type III- 3% , 2% and 6% respectively). In type IV neither collateral eminence nor the inferolateral surface appeared (0%, 23%, 17% respectively). The authors suggest to designate the inferolateral surface, not mentioned in the literature, as the occipitotemporal eminence (of the inferior horn).

Ograniczanie wyników

2 Folia Morphologica

2 Morys J.

2 Narkiewicz O.

1 Biranowska J.

1 Bobek-Billewicz B.

1 Dziewiatkowski J.

1 Switka A.

2 1999

Wyniki wyszukiwania

Topographic relationship of the amygdaloid body to the hippocampal formation and lateral ventricle - MRI study

The shape of the inferior horn of the lateral ventricle in relation to collateral and occipitotemporal sulci