Fig. 3
From: CT and MRI manifestations of mediastinal cavernous hemangioma and a review of the literature
The pathological lesion was generally grayish red and grayish yellow and the surface was similar to an envelope. The cut surface was grayish and spongy. The blood vessels were rich under the microscope. The lumen size was different, the wall thickness was uneven, and the vascular smooth muscle hyperplasia was obvious. Part of the sponge-like part of the vine has congestion in the lumen diagnosed as (pre-upper mediastinum) cavernous hemangioma (HE × 40)