Sarcomatoid Mesothelioma with Osteoid Differentiation

Sarcomatoid Carcinoma Mimicking Malignant Mesothelioma

Primary malignant sarcomatoid mesothelioma in the pericardium.

Primary malignant pericardial mesothelioma is an exceptionally rare tumor, and making an antemortem diagnosis of this disease is notoriously difficult. We herein report the case of a 61-year-old woman with pericardial mesothelioma who presented with shortness of breath and peripheral edema of the lower limbs. Chest computed tomography (CT) showed an anterior mass and thickened pericardium with ...

Chromophobe Renal Cell Carcinoma with Sarcomatoid Differentiation

We report chromophobe renal cell carcinoma (CRCC) with sarcomatoid dedifferentiation in a sixty-five year old male. CRCC is a prognostically better, distinctive subtype of renal cell carcinoma (RCC), histologically characterized by cells containing translucent and reticulated cytoplasm with distinct cell borders. Sarcomatoid component accompanies 9% of CRCC which alters its prognostic implicati...

Alveolar‐filling growth pattern of sarcomatoid malignant pleural mesothelioma

A case of sarcomatoid malignant pleural mesothelioma showing extremely rare growth pattern is described. A 63-year-old man presented to our hospital with left pleural effusion. A computed tomography (CT) scan of the chest showed diffusely thickened left visceral and parietal pleura associated with intermingled pulmonary infiltrative shadowing. Biopsy of the pleura under general anaesthesia conf...

A cytokeratin- and calretinin-negative staining sarcomatoid malignant mesothelioma.

Malignant Mesothelioma, or mesothelioma, is a mesothelial-based malignancy that may occur in the pleura, pericardium and peritoneum. Mesothelioma is a very aggressive cancer with limited treatment, and a median survival of about 1 year. At times, the diagnosis of mesothelioma may be problematic. The final diagnosis of mesothelioma relies on histology and often is dependent upon immunohistochemi...