Ectopic ocular tissue in testicular teratoma: A case report and review of the literature

• Published in: International journal of surgery case reports 2022-03, Vol.92, p.106854-106854, Article 106854
• Main Authors: Alromaih, Arwa Z., Fathaddin, Amany A., Almater, Abdullah I., Alkatan, Hind M.
• Format: Article
• Language: English
• Subjects: Case Report; Ectopic; Ocular tissue; Retina; Teratoma; Testicular; Uvea
• ISSN: 2210-2612; 2210-2612
• DOI: 10.1016/j.ijscr.2022.106854

Teratoma is a common neoplasm in prepubertal and post-pubertal periods. It consists of various types of tissues arising from different germinal layers, endoderm, mesoderm, and ectoderm. Ectopic ocular tissue is a rare phenomenon, with only few reported cases in other locations. This is a 10-month-old boy who presented with a painless scrotal mass. Following orchidectomy, the excised mass confirmed the presence of uveal and retinal tissues originating in a benign testicular teratoma by histopathological examination. Choroidal and retinal tissue are the most frequently encountered ectopic ocular tissue, while the least observed tissue is the lens. Most of the reported cases of ectopic ocular tissue present in ovarian teratomas. The only 2 previously reported cases of ocular-like tissue in testicular teratoma lack well-defined medullary epithelium, uveal, and retinal tissue as in our case. To our knowledge, developing ocular tissue in a testicular teratoma is extremely rare. Herein we report a unique case with mature defined ocular tissue within a testicular teratoma in an infant, which should not be overlooked. •Ectopic ocular tissue is generally a rare finding.•Most ectopic ocular tissue is reported in ovarian teratomas.•Developing ocular tissue in a testicular teratoma is extremely rare.•We report an infant with well-defined ectopic ocular tissue in a testicular teratoma.