Carcinoembryonic antigen immunoreactivity patterns in colorectal cancer: Correlation with morphologic parameters.

The expression of carcinoembryonic antigen (CEA) was analyzed immunohistochemically in 100 colorectal cancer specimens. The tumors were divided into three groups, according to the predominant staining pattern which was either apical, cytoplasmic or stromal. CEA localization was apical in 26 cases, cytoplasmic in 48 and stromal in 26 cases.

Semiquantitative cytochemical estimation of glucose-6-phosphate dehydrogenase activity in benign diseases and carcinoma of the breast.

The level of glucose-6-phosphate dehydrogenase (G6PDH) activity was semiquantitatively evaluated in fresh imprints of infiltrative ductal carcinoma, fibrocystic disease and fibroadenoma of the breast. A significantly higher level of G6PDH activity was found in the carcinomas. The results suggest that the estimation of G6PDH activity could be a valuable method for evaluating the cells in benign and malignant breast lesions.

Cytology and histopathology of metastatic malignant melanoma involving a polyp on the uterine cervix. A case report.

A case of unusual localization of metastatic malignant melanoma on the cervix uteri, which was diagnosed by cytologic examination of a Papanicolaou smear is reported. The cells contained no pigment, but they had the characteristic appearance that suggested the possibility of a metastatic malignant melanoma, which was confirmed by histopathologic examination of an excised polyp.