Renal-genital-middle ear anomalies

Renal-genital-middle ear anomalies, also known as renal-genital-middle ear syndrome or Winter syndrome (ORPHA:1092), is an extremely rare congenital malformation syndrome characterized by the triad of renal anomalies, genital anomalies, and middle ear abnormalities. The condition was first described by Winter et al. in 1968 in affected siblings. Renal manifestations may include renal hypoplasia, renal agenesis, or other structural kidney malformations that can lead to impaired kidney function. Genital anomalies typically involve internal genital malformations, particularly in females, such as vaginal atresia or uterine anomalies, while males may present with cryptorchidism or other genital defects. Middle ear anomalies result in conductive hearing loss due to malformation of the ossicles or other middle ear structures. The combination of these three organ system involvements is the hallmark of this syndrome. Only a very small number of cases have been reported in the medical literature, making it one of the rarest described syndromes. There is no specific curative treatment; management is supportive and symptom-directed, potentially including surgical correction of genital or renal anomalies, hearing aids or surgical intervention for conductive hearing loss, and monitoring of renal function. Genetic counseling is recommended for affected families.

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