Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Macroscopically, the tumor was circumscribed and solid. Partial infiltration toward the right upper lobe was observed (a,b). Microscopically, polygonal, spindle, or epithelioid-shaped cells with bizarre nuclei proliferated in a sheet, storiform, or fascicular pattern. Fibrous, hyalinized and myxomatous stroma was also seen. Both epithelioid (c) and sarcomatous (d) components were observed. These findings indicated a malignant mesothelioma with a biphasic pattern.
