title: Primary adenomatoid tumor of the testis: report of a case and review of literature.
abstract: Adenomatoid tumor (AT) is an extremely rare benign tumor in the testis of infants. A case of 14-month-old boy with testicular adenomatoid tumor was reported in this study. On physical examination, a smooth solid nodule sized 8 mm could be palpated with little tenderness on the head of the right testis. It could be clearly revealed by B ultrasonic scanning and computerized tomography. The patient underwent right radical orchiectomy. In postoperative histopathological study, the tumor was characterized by diffuse sheets of epithelioid cell and desmo-stroma structures. There was positive immunohistochemical staining of mesothelioma-associated antigens. The tumor should be differentiated from the tumor of the male genital tract including benign and malignant tumors of both epithelial and stromal origin. And we followed the case and no nodule was found in his scrotum by physical examination and scrotal ultrasonography after 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months. These findings have important implications that the histogenesis of adenomatoid tumor of the testis is unclear yet. The diagnosis depends on pathologic studies, and should be differentiated from paratesticular malignant mesothelioma and sclerosed lipogranuloma. Radical surgery is the common choice, and as a result of getting a good prognosis.
authors.affiliation: The First Afflicted Hospital, Xi'an Jiaotong University Xi'an 710061, China.
authors.forename: Binwu
authors.initials: B
authors.lastname: Sheng
authors.affiliation: Health Science Center, Xi'an Jiaotong University Xi'an 710061, China.
authors.forename: Yin-Ping
authors.initials: YP
authors.lastname: Zhang
authors.affiliation: Health Science Center, Xi'an Jiaotong University Xi'an 710061, China.
authors.forename: Huan-Huan
authors.initials: HH
authors.lastname: Wei
authors.affiliation: The First Afflicted Hospital, Xi'an Jiaotong University Xi'an 710061, China.
authors.forename: Mao
authors.initials: M
authors.lastname: Ma
authors.affiliation: Institute of Urology, Xi'an Jiaotong University Xi'an 710061, China.
authors.forename: Xunyi
authors.initials: X
authors.lastname: Nan
mesh_terms: D018254:Adenomatoid Tumor / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D014408:Biomarkers, Tumor / Q000032:analysis; D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D007223:Infant; D008297:Male; D009919:Orchiectomy; D011237:Predictive Value of Tests; D013736:Testicular Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D047368:Tumor Burden
chemical_list: D014408:Biomarkers, Tumor
keywords: Adenomatoid tumor; case report; infant; review; testicle