Enfermedad de Erdheim-Chester: fractura patológica de húmero izquierdo

The Erdheim-Chester disease is a rare presentation of non-Langerhans cell histiocytosis. The etiology is unknown, and is more common in adults. The clinical manifestations are heterogeneous due to histiocytic infiltration of multiple systems. When there is skeletal involvement, it produces bone pain, and may be associated with interstitial, heart, liver, kidney or pulmonary infiltrates1-3. A case is presented on a patient who began with chronic bone pain and a pathological fracture of the left humerus with polyostotic involvement and with no evidence of multisystemic disease.