Extraovarian adult granulosa cell tumor is a very uncommon neoplasm, which probably arises from the ectopic gonadal tissue along the embryonic root of the genital ridge. We report a new and rare case of an extraovarian adult granulosa cell tumor occurring in a 66-year-old woman who was presented with severe abdominal pain focused on the left iliac fossa. The immunohistopathology confirmed the diagnosis of a paratubal adult granulosa cell tumor. This paper illustrates the histogenetic origin of granulosa cell tumor, its clinicopathological and immunohistochemical features.
Keywords: Adult granulosa cell tumor; Differential diagnosis; Extraovarian; Histopathology; Inhibin.
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