- Resembles epididymis-like inclusions (closely arranged clusters of numerous tubules lined by low cuboidal epithelium, with occasional ovoid cells with clear cytoplasm resembling "peg cells", may be embryonal remnants)
- May be difficult to differentiate CD10+ epididymis from those inclusions that are also CD10+ (some inclusions are CD10-, Am J Surg Pathol 2003;27:469)
- Note: reactive mesothelial hyperplasia in a hernia sac may mimic mesothelioma
- References: Hum Pathol 1990;21:339, Am J Surg Pathol 2003;27:469
End of Testis and epididymis > Non-neoplastic lesions > Hernia sac entrapped epididymis
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