Osteopetrosis can be inherited in autosomal recessive, dominant, or X-linked forms, with the most severe cases typically autosomal recessive, caused by mutations in genes like TCIRG1, CLCN7, and OSTM1.2Symptoms vary by severity and include bone fragility, anemia, hepatosplenomegaly, and cranial nerve compression.3The latter can result in complications such as vision and hearing loss due to the narrowing of cranial foramina and subsequent nerve entrapment.4 This evidence concerns the gene CLCN7 and osteopetrosis.