The novel occurrence of non-syndromic unilateral renal hypoplasia and unilateral aplasia in two brothers

Abstract

Background: Non-syndromic unilateral renal hypoplasia is a congenital condition associated with one small kidney (hypoplastic) that generally has normal residual parenchyma but smaller calyces. We have previously reported the first case of non-syndromic unilateral renal hypoplasia transmitted in an autosomal dominant fashion from the mother. Patients and methods: The brother of the boy who was the patient in the medical literature reported to have unilateral renal hypoplasia transmitted from the mother in an autosomal dominant was seen and renal ultrasound performed. Results: The present patient, the brother was seen late during June, 2022 at about the age of eighteen years, for a routine check and was asymptomatic and otherwise healthy. However, abdominal ultrasound showed unilateral right renal aplasia. The right kidney was absent, while left kidney showed compensatory hypertrophy. Conclusion: This paper reports the novel occurrence of non-syndromic unilateral renal hypoplasia and unilateral aplasia in two brothers.