Cavernous hemangioma of the maxilia [case report]

Intraosseous hemangioma of the facial bones is a rare disease and it occurs in the mandible more than in the maxilla. This paper is a report of a case of intraosseous cavernous hemangioma of the left anterior maxillary wall and presents the modality used for its treatment. Embolization of the nutrient arteries was first applied followed by left subtotal maxillectomy. Reconstruction with rib graft and temporalis fascia pedicled flap was resorted to as an augmentary procedure for the resultant postoperative defect. The patient was followed for one year to assess the final outcome of this therapeutic modality

Prenatal development of the ovaries of the buffalo: part II-micromorphogenesis

Twenty five buffalo foetuses of 1.2 to 109 cms CVRL, were used in the present work. Microscopic investigation revealed three stages of ovarian development; 1] indifferent stage, 2] early differentiation stage and 3] follicular stage. The first stage was characterized by a parallel developmental pattern in the gonads of both sexes. It continued up to the age of 43 days of gestation [3.3 cms CVRL]. At such time, the gonads were formed of an outer epithelium covering, resting on interrupted basal PAS positive substance under which there was a layer of loose mesenchymal tissue separating it from the inner blastema. The latter was formed of a aperipheral densely packed and central loose sex cords housing many primordial germ cells. When early differentiated, the female gonads showed disappearance of the previously formed mesenchymal layer between the epithelial layer and the inner blastema. The latter, became differentiated into an outer cortex and inner medulla, folliculogenesis was investigated near the end of the 3rd month [11 cms. CVRL] at which medullary primordial follicles were seen in contact with the so formed rete cords. With progressive development, 15-18 cms. CVRL, the follicles were well differentiated specially at the cortico-medullary junction. The process of folliculogenesis reached its peak about the middle of the gestation period. Approaching the end of the foetal life, the ovaries developed multi-layered thecal and even antral jollicles. In addition several waves of follicular degenerations were detected elsewhere in the ovary

Evaluation of the resected ovary of the buffalo foetuses using B-mode ultrasonography

The images of the in vitro buffalo fetal ovary, as seen by ultrasonography, were circumscribed ellipsoidal to oval mixed echogenic structures. An antral follicle with a hyperechogenic capsule and central anechoic area was detected in the ovary of 110 cm CVRL. The analysis of the measured parameters showed a direct relation between the ovarian craniocaudal distance, area, and the circumference and fetal CVRL

Branching pattern and segmentation of the lion's renal artery [panthera leo]

Ten normal kidneye of the adult lion were thoroughly flushed and perfused with vinyle aceteate and corroded for a cast preparation. Work revealed that the lion's kidney gained its arterial supply entirely from the renal artery. The latter divided into two main divisions slightly before reaching the renal hilus. Within the renal hilus, both divisions subdivided into two segmental arteries-resulting into four segmental vessels, each of which supplied a distinct segment of the renal parenchyma. No anastomoses could be recognized between the segmental vessels or even between their individual subdivisions