.... 2025 Signet cell ring carcinoma Chylothorax Malignant pleural effusion CLDN18.2 Thoracoscopy Signet ring cell carcinoma (SRCC) of the stomach is an aggressive subtype of gastric adenocarcinoma characterized by early lymphatic invasion and a poor prognosis. Malignant pleural effusion...

... demonstrated abnormal FDG uptake in the pleura indicating pleural dissemination. Pleurocentesis revealed tumor cells in the pleural fluid; however, EGFR mutation testing failed due to inadequate tumor cellularity. Thoracoscopy under local anesthesia revealed multiple nodules on the parietal pleura. A biopsy...

..., instructions or products referred to in the content or advertisements. Sarcoma Mediastinal tumor Thoracoscopy Immunohistochemical analysis of the tumor cells was performed with a large panel of antibodies. The cells were positive for HMB-45 (fig. 2 c), S-100 protein, calretinin, CD34, CD56...