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Anatomy Journal of Africa

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An anatomical perspective: does the male greater cane rat (Thryonomys swinderianus) have a scrotum?

A.O. Adebayo, Z.A. Adegbesan, M.E. Okandeji, O.A. Mustapha, M.A. Olude, A.K. Akinloye

Abstract


We evaluated the anatomy of the “scrotal” skin pouch in an attempt to answer the question of whether (or not) there exist true scrotum in the greater cane rat (Thryonomys swinderianus). The “scrotal” skin folds from ten (10) matured male cane rats were morphologically and morphometrically studied with samples routinely processed for histology. Grossly, the pouch has features like fine hair on thin skin and longitudinal raphae typical of scrotum in other species. The histoarchitecture of the “scrotal” skin in the cane rat follows the normal scrotal pattern and the arrangements of the cutaneous strata, hair follicles and glands were similar in animals with perineal staining and those without perineal stain. The cane rat scrotal skin, though different in conformation from the scrotum of other mammalian species, has all the properties of a true scrotum thereby establishing the presence of scrotum in the greater cane rat.

Keywords: Scrotum, Greater cane rat, Skin Pouch, Perineal staining




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