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1

A new morphometric method for the sella turcica and the hypophyseal fossa and its clinical relevance

100%
Venieratos D., Anagnostopoulou S., Garidou A.
Folia Morphologica
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2005
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tom 64
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nr 4
240-247
The sella turcica and the hypophyseal fossa should be considered different entities, the latter being part of the former. Their morphology and dimensions correlate to some extent with those of the contained pituitary gland and have, for this reason, attracted the interest of anatomists and radiologists. With the application of MRI, however, these data are of limited use in the diagnosis of pituitary disorders, although they remain valuable with regard to a microsurgical approach to the hypophysis. The proposed morphometric method was applied to 20 dry skulls. We first made casts of the corresponding sellae. Their volumes were then measured by immersion. The frontal section of each hypophyseal fossa was obtained through its deepest point and magnified. The Cartesian co-ordinates of the contour of the section were used to evaluate the corresponding area and centroid. The volume of each fossa was finally obtained by the use of Pappus’ theorem applied to solids of rotation. The volumes of the sellae obtained as above ranged from 460 mm³ to 1570 mm³ with a mean value of 835 mm³. These figures are comparable to those reported from previous authors. To our knowledge the method described has enabled a close approximation of the volumes of the hypophyseal fossae to be made for the first time. These volumes ranged from 24 mm³ to 300 mm³, with a mean value of 157 mm³. Similar numerical methods might be applicable in vivo by the use of MR imaging.
2

A lower polar additional renal artery in an ectopic intraperitoneal kidney

100%
Panagouli E., Tsaraklis A., Venieratos D.
Folia Morphologica
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2011
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tom 70
|
nr 1
Background: The kidneys are positioned retroperitoneally and they are normally supplied by the paired renal arteries. We describe a long left additional renal artery which supplies the lower pole of an intraperitoneal, labile, and smaller than usual left kidney, a variation that might complicate uroradiological procedures or surgery and cause failure of lithotripsy. Material and methods: The reported anatomical variations were discovered during routine educational dissection in a female cadaver. Results: The left kidney was found inside the parietal peritoneum (intraperitoneal), and it was lying free among the small bowel loops, without any underlying supportive tissues. Moreover, it was smaller than it should have been (length: 9.3 cm, diameter 3.1 cm) and possessed a lower polar additional left renal artery rising from the lateral side of the abdominal aorta, passing posterior to the ureter, and which was rather long (length: 8.8 cm). At the right side we did not find any variations of the renal region. Conclusions: Such a variation should be taken into consideration as it may lead to complications or explain some of them, if they occur. (Folia Morphol 2011; 70, 1: 56–58)
3

An unusual case of asymmetrical combined variations of the subclavian and axillary artery with clinical significance

76%
Panagouli E., Natsis K., Piagkou M., Kostare G., Tsoucalas G., Venieratos D.
Folia Morphologica
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2019
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tom 78
|
nr 4
In a Greek Caucasian male cadaver, a combination of the following arterial variations were observed: an aberrant right subclavian artery originating as a last branch of the aortic arch and coursed posterior to the oesophagus, a right non-recurrent laryngeal nerve, an atypical origin of the left suprascapular artery from the axillary artery, an unusual emersion of the lateral thoracic artery from the subscapular artery and a separate origin of the left thoracodorsal artery from the axillary artery. According to the available literature the corresponding incidences of the referred variants are: 0.7% for the aberrant right subclavian artery, 1.6–3.8% for the origin of the suprascapular artery from the axillary artery, 3% for the origin of the left thoracodorsal artery from the axillary artery and 30% for the origin of the lateral thoracic artery from the subscapular artery. Such unusual coexistence of arterial variations may developmentally be explained and has important clinical significance. (Folia Morphol 2019; 78, 4: 883–887)
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