PMC10247289_01
A - cross section of ovarian mass shows a solid gray-white gelatinous surface with few smooth walled cystic spaces and foci of hemorrhage (scale bar= 2 cm); B - the ovarian mass shows a pseudoglandular pattern with pleomorphic polygonal cells. Nuclei are vesicular and nuclear borders are irregular (H&E 400x); C - the tumor is diffusely positive for Napsin A (400x).
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Cross section of the adnexal mass showed the tumor to be predominantly solid white with few smooth cystic spaces and foci of hemorrhage (Figure 1A). The cells were pleomorphic and polygonal (Figure 1B). By immunohistochemistry, the cells were positive for PAX8, Napsin A (Figure 1C), WT1, and focally for CK7 and negative for CK20.
Cross section of heart shows a myocardial infarct involving the posterior and free walls of the left ventricle. The affected area is variegated ranging from bright red to yellow indicating various ages of the infarct (scale bar= 3.0 cm).
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Cross section of the heart showed a large red to yellow area involving the free and posterior wall of the left ventricle (Figure 2), which extended from the apex to the base.
PMC10247289_02
A - gross view of the stomach and small intestine involved by polypoid and ulcerated tumors; B - the wall of the small intestine is diffusely involved by lymphoma (H&E 200X); C - high power in better preserved area shows the lymphoma cells to be pleomorphic, intermediate to large size. (H&E 1000X); D - the tumor is diffusely positive for CD20 (200x).
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The mucosa showed flat, polypoid nodular lesions with ulceration (Figure 3A). Histologic sections showed small intestinal mucosa with overlying ulceration and diffuse involvement by neoplastic cells (Figure 3B). The cytology in better preserved areas, shows these cells to be intermediate-to-large in size (Figure 3C). By immunohistochemistry, these cells were positive for CD20 (Figure 3D), CD10, and PAX5 while negative for CD3, CD4, CD5, and CD138.