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Scrotal ultrasound (A, B). Inguino-scrotal MRI (C, D, E, F).
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The left testicle and epididymal structures were normal (Fig. 1A and B). The mass appears to be related to the epididymis and infiltrating the inferior and medial scrotal wall (Fig. 1C-F).
Immunohistology of the paratesticular mass biopsy showing atypical cells staining positive for TTF1 (A, B), H&E (C) and CK7 (D).
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Tumoral elements stained positive for cytokeratin (CK) AE1/AE3, CK7, TTF1, and negative for p63 (Fig. 2).