title: [Seminal vesicle cyst with ipsilateral renal agenesis].
abstract: A formerly healthy 41-year-old male with monosymptomatic swelling of his left testicle was diagnosed with testicular cancer (seminoma). During staging of the cancer a computed tomography showed left renal agenesis and an 8 x 6 cm retrovesical space-occupying lesion in the left side of the pelvis. The lesion was interpreted as a group of enlarged lymph nodes, but PET/CT and MRI later demonstrated that it was a left seminal vesicle cyst. An association between congenital seminal vesicle cysts and ipsilateral renal agenesis is rare and can be explained by their common embryologic origin.
authors.affiliation: Radiologisk Afdeling, Odense Universitetshospital, Sdr. Boulevard 29, 5000 Odense C. frederik.harbo@gmail.com.
authors.forename: Frederik Severin Gråe
authors.initials: FS
authors.lastname: Harbo
authors.forename: Lisbet Brønsro
authors.initials: LB
authors.lastname: Larsen
mesh_terms: D000328:Adult; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging; D003560:Cysts / Q000150:complications* / Q000000981:diagnostic imaging; D005832:Genital Diseases, Male / Q000150:complications*; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D007674:Kidney Diseases / Q000150:complications / Q000151:congenital* / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D008297:Male; D009367:Neoplasm Staging; D012669:Seminal Vesicles / Q000000981:diagnostic imaging / Q000473:pathology*; D018239:Seminoma / Q000175:diagnosis / Q000601:surgery; D013736:Testicular Neoplasms / Q000175:diagnosis / Q000601:surgery; D014057:Tomography, X-Ray Computed