Delayed presentation of rickets in a child with labyrinthine aplasia, microtia and microdontia (LAMM) syndrome

Abstract

Background

Labyrinthine Aplasia, Microtia and Microdontia (LAMM) syndrome is characterized by the complete absence of inner ear structures (Michel aplasia), microtia and microdontia. Hypophosphatemic rickets results from defects in the renal tubular reabsorption of filtered phosphate.

Case characteristics

13-year-old Indian girl presented with deafness since infancy and progressive wrist widening and genu valgum for last one year.

Observation

Homozygous novel missense mutation in fibroblast growth factor 3.

Message

LAMM syndrome and hypophosphatemic rickets may be associated.

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Correspondence to Seema Kapoor.

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Singh, A., Tekin, M., Falcone, M. et al. Delayed presentation of rickets in a child with labyrinthine aplasia, microtia and microdontia (LAMM) syndrome. Indian Pediatr 51, 919–920 (2014). https://doi.org/10.1007/s13312-014-0529-2

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Keywords

  • Deafness
  • Fibroblast growth factor receptor-3
  • Hypophosphatemic rickets