Pathological Anatomy. Atlas of Macroscopic Specimens - Part 2. Pathology of Individual Organs and Systems - A. M. Romanyuk 2016

Pathology of Pregnancy and Childbirth. Congenital Malformations
Spongy Kidney

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Medullary sponge Kidney

Renal parenchyma with small cavities is a variant of Infantile Polycystic Kidney disease. Infantile Polycystic Kidney Disease is characterized by a bilateral, marked enlargement of the Kidneys with The formation of numerous small cysts tightly packed together in both the cortical and medullary layers. The kidneys acquire the appearance of a multi-porous sponge. Microscopic examination reveals that the entire renal tissue appears to be completely replaced by cysts lined with cuboidal epithelium. Affected infants are non-viable.



Last update: 10/08/2026

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