PMC5446627_01
Intraoperative picture showing a leiomyoma mass located between seminal vesicles. Arrow: leiomyoma mass, arrowheads: right vas deferens and right seminal vesicle.
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At this stage, a 3 x 3 cm sized posterior mass lesion protruding from the prostate between SVs was identified and dissected (Fig. 1).
Postoperative specimen showing leiomyoma located between seminal vesicles posteriorly. SV = seminal vesicle.
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Figure 2 shows the removed specimen with a mass lesion protruding from the prostate located between SVs.
A mass lesion, made up of smooth muscle bundles, is well demarcated from prostate tissue on the left (H&E x 4). H&E = hematoxylin and eosin.
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Microscopy of this mass lesion revealed a fascicular pattern of smooth muscle bundles separated by well-vascularized connective tissue (Fig. 3).
Smooth muscle cells with bland cytology form fascicules (H&E x 40). Immunohistochemically smooth muscle actin is positive (inset x 40).
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Lesion was immunohistochemically positive with smooth muscle actin antibody (Fig. 4 inlet).