A Large Extratesticular Epidermoid CystClinical HistoryA 74-year old man presented with a fast-growing painful swelling next to the left testicle.Case DescriptionUltrasound performed, using a 15 MHz linear transducer, revealed a 7 cm heterogeneous mass adjacent to the left testis. The mass contained numerous anechoic patches with no evidence of internal vascularity.Diagnosis/ Discussion/ Treatment/ Follow upThe patient was referred to have an MRI to help characterise the scrotal mass. The MRI revealed the left paratesticular mass to have appearances as the adjacent testis and was unable to provide detailed characteristics of the mass. The patient had left orchiectomy and the samples were examined histologically. Histology confirmed the paratesticular mass to contain keratinised stratified squamous epithelium with a diagnosis of an epidermoid cyst.SonogramsRight and left testes (T) with the mass (M) laterallyLeft hemiscrotal heterogeneous massAxial view of the left hemiscrotal massPDI showing no flow signal in the massB-mode shoeing the left hemiscrotal mass lateral to the left testisCoronal MRI showing the left hemiscrotal mass (double arrows) next to the left testis (single arrow)KeywordsPublished on: November 25, 2024
