... immunocytochemistry for thyroid transcription factor-1, napsin A, p40, p63, CK5/6 and desmocollin-3, and compared cytologic staining results with the corresponding resection. Methods: We examined: (a) the expressions of the above 6 antibodies on cells transferred from touch imprints of resected specimens, the extent...

...Hunter Johnson; Cynthia Cohen; Nazneen Fatima; David Duncan; Momin T. Siddiqui Objective: A combined thyroid transcription factor 1 (TTF-1) and Napsin A double stain has been shown to be useful in the diagnosis of adenocarcinoma (ADC). This study compares differences in double staining patterns...

...Lian Liu; Cynthia Cohen; Momin T. Siddiqui Objective: Thyroid transcription factor 1 (TTF-1)/napsin A double staining is useful for the identification of primary lung adenocarcinoma. We examined its performance in pleural fluid. Study Design: Thirty-eight pleural-fluid specimens with lung...

...Jo-Heon Kim; Young-Sill Kim; Yoo-Duk Choi; Ji-Shin Lee; Chang-Soo Park Objective: It was our aim to evaluate the usefulness of napsin A and thyroid transcription factor 1 (TTF-1) in the differential diagnosis of metastatic pulmonary and non-pulmonary adenocarcinomas (ACs) in pleural effusion. Study...