PMC7378625_01
Transverse view of contrast-enhanced computed tomography images demonstrating a pulmonary embolism with subocclusion of the right pulmonary artery with extension to the left pulmonary artery and truncus pulmonalis.
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Computed tomography (CT) showed a subtotal occlusion of the right pulmonary artery and extension into the left pulmonary artery (Figure 1).
Macroscopic view of the resection specimen with a length of 15 cm and a smooth surface ("wormlike" appearance).
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During this procedure, a smooth, white, intravascular mass was visualized (Figure 2) which was easily resected in its entirety.
Immunohistochemical examination of the tumor (enlargement x10) shows benign-appearing smooth muscle cells with expression of estrogen receptor (ER), marked in brown.
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Pathological analysis of the specimen demonstrated a lesion consisting of spindle cells without atypia, showing expression of alpha SMA and desmin with partial expression of estrogen and progestogen receptors (Figure 3).