A moderate right sided pleural effusion is noted. A nodular mass contiguous with the right parietal pleura is seen. There is no mediastinal lymphadenopathy.
CT guided biopsy
Histology of the biopsy sample is suggestive of a malignant mesothelioma of the epithelioid type. There is no evidence of vascular or lymphatic invasion, and regional lymph nodes are negative for disease.