Oxalosis is a metabolic disorder characterized by the accumulation of calcium oxalate deposits in various organ systems. Bone oxalosis is a systemic manifestation of oxalosis, in which calcium oxalate deposits accumulate in the skeletal system. This report describes a 69-year-old female patient who presented with right hip pain and was later found to have an osseous mass-like lesion in the right proximal femur, with radiographic findings resembling those of a benign bone tumor. CT-guided biopsy and surgical biopsy showed that the mass had pathologic findings typical of bone oxalosis. Because the patient had no predisposing factors for systemic oxalosis and had no hyperoxalemia or hyperoxaluria, she could be diagnosed with localized bone oxalate deposition disease or bone oxaloma rather than bone oxalosis. This is the first report of this clinical entity to present as a benign-appearing bone mass and without any predisposing systemic causes.

中文翻译：

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骨草症-骨草症的局部表现。

草酸化是一种代谢紊乱，其特征在于草酸钙沉积物在各种器官系统中的积累。骨草酸化是草酸化的系统性表现，草酸钙沉积物在骨骼系统中积累。该报告描述了一位69岁的女性患者，她患有右髋关节疼痛，后来被发现在右股骨近端有一个骨块样病变，影像学表现与良性骨肿瘤相似。CT引导的活检和手术活检显示该肿块具有典型的骨草样病变的病理表现。由于该患者没有全身性草酸血症的诱因，也没有高草酸血症或高草酸尿症，因此可以被诊断为局限性骨草酸沉积病或骨草酸瘤，而不是骨草酸血症。