title: Imaging diagnosis--seminoma causing liver compression in a spur-thighed tortoise (Testudo graeca).
abstract: A 13-year-old male spur-thighed tortoise (Testudo graeca) was presented with anorexia, apathy, and prolapse of penile tissue. Ultrasonography revealed a large heterogeneous mass in the coelomic cavity, and fine-needle aspiration demonstrated sperm. Magnetic resonance imaging showed a sharply defined mass originating from the left testis. Appearance and signal intensities were similar to those reported in testicular neoplasms in humans, in particular sharing similarities with seminomas. Necropsy results and histopathological findings were consistent with a seminoma. To the authors' knowledge this is the first report of the diagnosis of testicular neoplasia in a reptile using imaging techniques.
authors: Clinic for Birds and Reptiles, University of Leipzig, Leipzig, Germany.
authors: Michael
authors: M
authors: Pees
authors: Eberhard
authors: E
authors: Ludewig
authors: Bastian
authors: B
authors: Plenz
authors: Volker
authors: V
authors: Schmidt
mesh_terms: D000820:Animal Diseases / Q000000981:diagnostic imaging*; D000818:Animals; D044963:Biopsy, Fine-Needle / Q000662:veterinary; D061705:Image-Guided Biopsy / Q000662:veterinary; D008297:Male; D010409:Penile Diseases / Q000662:veterinary; D011391:Prolapse; D018239:Seminoma / Q000000981:diagnostic imaging / Q000662:veterinary*; D013736:Testicular Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary*; D014426:Turtles; D018615:Ultrasonography, Doppler, Color / Q000662:veterinary; D018084:Ultrasonography, Interventional / Q000662:veterinary
keywords: MRI; reptile; seminoma; tortoise; ultrasound