病人為第2胎,順產,足月新生兒,父母親年齡均為35歲,彼此間無血緣關係,第一胎為正常女嬰,已3足歲,病人出生後,即發現有面部異常,符合Turner症候羣,包括有眼距過寬,上眥贅皮,上眼瞼下垂,低位耳朵,高拱型上顎,蹼狀頸,短而寬擴的胸部,乳距過寬且乳頭發育不良,左中側有三度心縮雜音,外生殖器狀似男生,有一短小陰莖及發育不完全的陰囊皺摺。右側鼠膝部併腹股溝疝氣,左側可摸到睪丸,會陰型的尿道口下裂,上肢肘外翻,第四掌骨較短有斷掌現象,下肢外翻。 病人尿中17KS含量正常,末梢血液淋巴球的染色體檢查顯示75%的45,XO及25%的46,XY。五個月大時,病人接受剖腹探查,左側骨盆腔有一疑似卵睪丸樣的性腺組織。兩側性腺組織切片檢查皆顯示為嬰兒型睪丸組織,含有seminiferous tubules及Sertoli cells,並無腺母細胞瘤。
A newborn with ambiguous external genitalia and the stigmata of Turner syndrome presented with the following features: short stature, hypertelorism, bilateral epicanthal folds, ptosis, low-set ears with prominent auricles, high-arched palate, low posterior hairline, webbed neck, broad and short chest, widely-spaced and hypoplastic nipples and clitoris-like phallus with hypospasdias. He also had patent ductus arteriosus, the secundum type of atrial septal defect and mitral stenosis. Chromosomes of peripheral blood showed mosaicism of cells with 45,XO/46,XY. An exploratory laparotomy was performed at five months of age. The right side ovotestis-like gonad was removed. The left side gonad in the scrotum was normal. No pathological gonadoblastoma was found.