PMID: 9549273Apr 29, 1998Paper

Medullary cystic disease: a family study

Journal of the Formosan Medical Association = Taiwan Yi Zhi
H C ChenY H Lai

Abstract

Medullary cystic disease of the kidney is characterized by progressive tubulointerstitial disease with medullary cyst formation and secondary glomerular sclerosis. We treated a patient with chronic renal failure and investigated the family history of renal disease. The patient, an 18-year-old woman, was admitted due to poor appetite and fatigue for several months. Findings on physical examination were normal except for a pale conjunctiva. Urinalysis revealed only mild proteinuria with clear sediment. The hemogram showed normocytic normochromic anemia with hemoglobin 86 g/L. The patient was azotemic and her creatinine clearance rate was 10.7 mL/min. Renal sonography showed contraction of both kidneys with a marked increase in cortical echogenicity. One small cyst was found in the medullary area. Computed tomography (CT) and magnetic resonance imaging revealed several medullary cysts. Percutaneous renal biopsy showed focal and periglomerular sclerosis, marked tubular atrophy, and interstitial fibrosis. Ten of her family members were examined for renal function, and by sonography and CT. Five had medullary cysts, and three of the five showed abnormal renal function. Medullary cystic disease should be considered in the differential...Continue Reading

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