Non-Hodgkin lymphoma of a palate: A case report of a highly destructive lesion.

Non-Hodgkin lymphoma (NHL) is a haematolymphoid neoplasm that can affect nodal and extra-nodal sites. It is a rare disease in the oral cavity, accounting for only 2% of all extra-nodal lymphomas. Its aetiology is multi-factorial, being strongly associated with viral infections.

Brachial plexus neuropathy by hibernoma compression: An unusual presentation of peripheral non-neural sheath nerve tumor and a systematic review of literature.

Brachial plexus neuropathies are uncommon and are rarely caused by a tumor. The clinical presentation of a brachial plexus neuropathy caused by a tumor depends on the degree of malignancy of the tumor and its localization. We report an illustrative case of a 27-year old female subject with a progressively increasing mass lesion causing brachial plexus compression, ipsilateral shoulder pain, C8 dermatomal paresthesia, and impairment of motor power.

Regeneration of Tracheal Tissue in Partial Defects Using Porcine Small Intestinal Submucosa.

Background: Surgical correction of tracheal defects is a complex procedure when the gold standard treatment with primary end-to-end anastomosis is not possible. An alternative treatment may be the use of porcine small intestinal submucosa (SIS). It has been used as graft material for bioengineering applications and to promote tissue regeneration.

POST-REPERFUSION LIVER BIOPSY AND ITS VALUE IN PREDICTING MORTALITY AND GRAFT DYSFUNCTION AFTER LIVER TRANSPLANTATION.

Background: The outcome of the patients after liver transplant is complex and to characterize the risk for complications is not always easy. In this context, the hepatic post-reperfusion biopsy is capable of portraying alterations of prognostic importance.

Aim: To compare the results of liver transplantation, correlating the different histologic features of the hepatic post-reperfusion biopsy with graft dysfunction, primary non-function and patient survival in the first year after transplantation.

Histomorphometric and immunohistochemical analysis of infectious agents, T-cell subpopulations and inflammatory adhesion molecules in placentas from HIV-seropositive pregnant women.

Background: The aim of this study was to compare histomorphometric changes and the results of immunohistochemical tests for VCAM, ICAM-1, CD4 and CD8 in normal placentas from HIV-seropositive pregnant women.

Methods: Samples of normal placentas were divided into 2 groups: healthy HIV-seronegative pregnant women (control group = C = 60) and HIV-seropositive women (experimental group = E = 57). Conventional histological sections were submitted to morphometric analysis and evaluated in terms of the immunohistochemical expression of ICAM-1, VCAM, CD4 and CD8.