ATYPICAL FINDINGS OF DISCORDANT BONE-SCAN AND RADIOGRAPHS IN TRANSIENT OSTEOPOROSIS OF THE HIP - CASE-REPORT AND REVIEW OF THE LITERATURE

The authors report atypical findings of discordant bone scans and radi ography seen in a patient with transient osteoporosis of the hip (TOH) . Presented in the case of a 60-year-old man who had spontaneous onset of left hip pain which worsened for 2 months with weight-bearing on t he affected side, Initial and follow-up radiographs of the let hip wer e normal, Bone scan demonstrated intense uptake of Tc-99m MDP in the a ffected femoral head and neck, corresponding to characteristics of abn ormal signal intensity of TOH or transient bone marrow edema syndrome on MRI, This discordant pattern of bone scan and radiographs has rarel y been reported in the literature, Its possible mechanism of causation and clinical implication in TOH, together with a review of the litera ture, are discussed in this report.