Renal cystic disease in multisystem conditions

Area of Science:

• Nephrology
• Genetics
• Radiology

Background:

• Five renal cystic diseases, including autosomal dominant polycystic kidney disease (ADPCK), have significant extrarenal manifestations.
• These manifestations can precede, coincide with, or follow the onset of renal disease.
• Understanding these associations is crucial for comprehensive patient management.

Purpose of the Study:

• To discuss the most significant extrarenal manifestations of five major renal cystic diseases.
• To highlight the importance of recognizing these manifestations for diagnosis and evaluation.
• To inform radiologists about the significance of extrarenal signs in identifying renal cystic diseases.

Main Methods:

• Review of literature on five specific renal cystic diseases: ADPCK, ARDCK, tuberous sclerosis (TS), von Hippel-Lindau Syndrome (VHL), and medullary cystic disease (MCD).
• Identification and summarization of key extrarenal manifestations for each disease.
• Discussion of the clinical implications of these extrarenal findings.

Main Results:

• ADPCK: Associated with hepatic cysts and cardiovascular abnormalities.
• ARDCK: Linked to portal hypertension.
• TS: Characterized by hamartoma-like tumors in other organs.
• VHL Syndrome: Manifests as central nervous system hemangioblastomas and paragangliomas.
• MCD: Associated with congenital hepatic fibrosis.

Conclusions:

• Extrarenal manifestations are critical indicators for diagnosing and evaluating patients with specific renal cystic diseases.
• Early detection of these signs can aid in confirming the underlying renal condition.
• Radiologists should consider evaluating the kidneys when extrarenal manifestations suggestive of these diseases are present.