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Syndrome reference sheet
Generated 12 Oct 2026
Nephrology · Nephrology / Tubular disorders Michelis–Castrillo syndrome
Also known as: FHHNC
Severe renal magnesium and calcium wasting with progressive renal failure.
- Medical specialty
- Nephrology
- Subspecialty
- Nephrology / Tubular disorders
- Sex & age distribution
- Male: affected; Female: affected; Children: yes, childhood
- Gene(s) involved
- CLDN16, CLDN19
Etiology & mechanism
Paracellin-1 (claudin-16) or claudin-19 defect.
Gene(s) involved (2)
CLDN16CLDN19
Symptoms & signs (6)
kidney stonesnephrocalcinosisocular defects (cldn19)polyuriaprogressive renal failureurinary tract infection