Clinicopathologic evaluation of CDw75 antigen expression in colorectal adenocarcinomas.

CDw75, a B lymphocyte surface antigen, is a sialylated carbohydrate epitope, which is generated by the enzyme beta galactosyl alpha 2,6 sialyltransferase (Sia-T1). In colon carcinomas, although higher levels of Sia-T1 has been described and found to be correlated with metastatic potential of tumor cells, the expression of CDw75 antigen still remains unknown. To address this issue, we investigated immunohistochemically CDw75 antigen expression in 195 colorectal adenocarcinomas and their nodal metastases.

Visceral Kaposi's sarcoma with intracranial metastasis: a rare complication of renal transplantation.

The incidence of Kaposi's sarcoma (KS) has increased in solid organ transplantation recipients. This type of KS tends to be aggressive, involving lymph nodes, mucosa and visceral organs in about half of patients, sometimes in the absence of skin lesions. Brain involvement of KS has rarely been reported.

Differentiated thyroid carcinoma in children and adolescents. Clinical characteristics, treatment and outcome of 15 patients.

Background: Thyroid carcinoma in childhood and adolescence is uncommon and because of the slow progression of disease the standard treatment is controversial. The aim of this study was to perform a retrospective analysis of treatment results for differentiated thyroid carcinoma in this age group treated in our clinic.

Materials And Methods: From August 1988 to February 2001, 15 patients between the ages of 8 and 21 years (average 16.