Sánchez-Sierra LE, Ramírez-Izcoa A, Alvarenga CRH, Varela-González D

Language: Spanish
References: 18
Page: 234-240
PDF size: 258.63 Kb.

ABSTRACT

Introduction: osteopetrosis is characterized by insufficient bone resorption as a consequence of a disorder in the osteoclast activity and brings about increased bone density, that is, a highly calcified bone but very fragile. There is failed potential of the bone marrow, thus unleashing secondary hematopoiesis with visceromegalia and pancitopenia manifestations. The bone thickening provokes narrowing in cranium foramens where the cranial nerves pass, they compressed and cause secondary clinical manifestations.
Case report: a female patient aged 3 years showed horizontal nistagmus, paresia in the right external ocular motor nerve, loss of response to bilateral hearing stimulus, peripheral facial palsy and bilateral atrophy of the optical nerve. The radiological tests showed increased bone density with significant thickening of the skull base and long bones.
Conclusions: the diagnosis of osteopetrosis is simple and mainly depends on the radiological studies, but it is unnoticed because of its low frequency and the inexistent clinical suspicion. The early diagnosis of the damage of several cranial nerves, the multidisciplinary care and timely treatment may contribute to better evolution.

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