骨嗜酸性肉芽肿X线诊断的若干问题

Some problems concerning the radiologic diagnosis of eosinophilic granuloma of the bone

125 eosinophilic granulomas of the bone in 61 cases were reported. The radiologic manifestations may be summarized as follows: (1) Multiple lesions may occur with vertebra plana; (2) Epiphyseal lesion may be primary or secondarily involved by extension from metaphyseal lesion; (3) Metaphyseal lesion usually presents as an eccentric cystic area or central oval area of lucency; (4) The diaphyseal lesion manifests a "hole within hole" appearance; (5) The tarsal bone may exhibit a "bone within bone" sign; (6) Periosteal Codman triangle may be present.