PD-L1 protein expression and copy number gains in HIV-positive locally advanced cervical cancer.

Background: The programmed death-1/programmed death-ligand-1 (PD-1/PD-L1) axis may represent a target for cervical cancer; however, it is poorly understood in human immunodeficiency virus (HIV)-infected patients.

Methods: We evaluated HIV-positive ( = 42) and HIV-negative ( = 110) women with locally advanced cervical cancer regarding their PD-L1 expression, determined by combined positive score (CPS) ⩾ 1 and tumor proportion score (TPS) ⩾ 25%, and PD-L1 copy number alterations, assessed by fluorescence hybridization.

Results: Regardless of HIV status, 84.

Expression of CD24 in cholangiocarcinoma cells is associated with disease progression and reduced patient survival.

Cholangiocarcinoma is frequently found to invade local tissues and metastasize to distal organs. We investigated the expression of CD24 in cholangiocarcinoma samples and its prognostic significance. In addition, the cellular function of CD24 was studied in the RMCCA1 cholangiocarcinoma cell line.

A two-phase study model for the standardization of HER2 immunohistochemical assay on invasive ductal carcinoma of the breast.

Objectives: To develop and verify a standardized protocol for HER2 immunohistochemical assays on invasive ductal carcinoma of the breast in Thailand.

Material And Method: A two-phase study approach was employed. In the Phase One, after verifying the proposed protocol that adopted the HercepTest procedure using readily available primary antibodies, CB11 and A0485, Lab 1 performed the HER2 immunohistochemical staining for 137 cases of invasive ductal carcinoma twice with two types of the antibody.

Correlation of HBV and HCV with CH, LC, HCC in liver biopsied tissue at Rajavithi Hospital.

Retrospective study in Clinicopathology of 66 surgical liver tissue from adult Thai patients admitted at Rajavithi Hospital, in Bangkok, during December 2002-September 2003 (10 month periods). The main purposes are: 1) To find the correlation of HBV, HCV with CH, LC, HCC. 2) To compare the correlation of Hepatocyte, AFP, CEA (IHC) in malignant cells, which one is the best usage to confirm the diagnosis of HCC in both primary and metastasis.

Leiomyosarcoma in peripheral nerve: the first case report.

A neoplasm of the peripheral nerves can be obscured, especially during the early phase. The authors report a patient with sciatic nerve leiomyosarcoma. The patient's presentation and initial management are unique.