Van Neck-Odelberg disease: Another cause of limp in childhood.

The patient was an 8-year-old boy with no significant medical history. He reported that, for the last year, he was having weekly episodes of intense pain in right lower limb that lasted at least an hour. The pain was located in anterior aspect of his thigh and gluteal region, and limited his mobility. He had no fever or constitutional symptoms. The clinical signs and symptoms remitted with rest and the usual analgesics. Physical examination confirmed that the child was obese (body mass index = 24; >97th percentile). There was no evidence of inflammation, limitation of mobility or neurological deficits. Complete blood count, laboratory tests and acute-phase reactants were normal. An anteroposterior radiograph of the pelvis (Fig. 1) revealed enlargement of right-sided IPS, with small irregularities of pseudotumoral aspect. Magnetic resolution produced (Fig. 2) an