Glandular Inclusions in Inguinal Hernial Sacs and Spermatic Cords: Müllerian-like Remnants Confused with Functional Reproductive Structures

Abstract
Small, glandular inclusions are present in approximately 6% of hernial sacs from prepubertal males. Identical structures may be present in the spermatic cord. Histologically, these are composed of ciliated, low columnar epithelium with eosinophilic cytoplasm and basal nuclei. A mantle of fibrous tissue surrounds each gland-like structure. These epithelial inclusions may be confused with reproductive ducts of functional importance; however, specific histologic features allow ready distinction. The origin of these structures is uncertain, but it is most probable that they are remnants of Müllerian ducts.

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