Immunohistochemical features of paragangliomas.

Immunohistochemistry is part of the routine diagnosis of the neuroendocrine tumors. In our study, we included 52 paragangliomas with various localizations by routine histology and immunohistochemistry. In order to increase the diagnostic specificity, a complex immunohistochemistry panel has been performed consisting of Bcl-2, Ki-67, Bax and Pituitary Adenylate Cyclase-Activating Peptide (PACAP), somatostatin, VIP and Calcitonin Gene Related Peptide (CGRP).

Structural characteristics and functional significance of the buccal fat pad (corpus adiposum buccae).

Corpus adiposum buccae (c.a.b.

The aberrant retroesophageal right subclavian artery.

Two cases with arteria lusoria were found at 278 routine dissections. These arteria arise as the last branches of the aortic arch and have a retroesophageal position. At the crossing point, the esophagus narrows due to the groove caused by the artery.

[Anatomical variations of the nervus alveolaris inferior and their importance for the practice (author's transl)].

The authors have studied the anatomic variations of the inferior alveolar nerve (N. alveolaris inferior) in 18 human heads. The mandibular nerve being free by medial abord.

Regeneration of intrahepatic biliary ducts after subtotal hepatectomy in rats.

The regenerative morphogenesis of intrahepatic biliary ducts in subtotally hepatectomized rats was studied at 3, 7, 14 and 21 days after operation. Histological findings showed that during the postmitotic stage of hepatoregeneration, between the 1st and 2nd postoperatory week the regenerated biliary structures appeared in close connection with the newly formed vasculo-connective portal spaces. The poorly differentiated periportal cells generated through a gradual metamorphosis the bordering cells of the regenerating intrahepatic biliary ducts.