SPINE CASE REPORT T1 Hyperintense Vertebral Column Melanoma CASE REPORT Metastases D.S. McMenamin SUMMARY: We report a case of T1 hyperintense vertebral column metastatic disease in a 24-year-old man with metastatic melanoma. Radiologic work-up revealed multiple lytic vertebral metastases on CT S.L. Stuckey with corresponding T1 hyperintensity on MR imaging. Whereas T1 hyperintensity associated with G.J. Potgieter melanoma has been well documented, to our knowledge, this is the first described case of widespread T1 hyperintense metastatic bone disease. T1 hyperintense bone lesions are virtually always benign. However, correlation with the lesion appearances on other MR imaging sequences and imaging modalities as well as with the clinical history may occasionally suggest otherwise. he vast majority of T1 hyperintense vertebral column le- Tsions are benign. Spinal column metastatic disease of mel- anoma origin is not, however, uncommonly encountered. Metastatic melanoma has been demonstrated to produce T1 hyperintense lesions elsewhere in the body either related to the melanin or hemorrhage content. We report the first case in the English literature of metastatic melanoma producing wide- spread T1 hyperintense vertebral column lesions. Case Report A 24-year-old man with no remarkable medical history was admitted after a grand mal seizure. Examination revealed no focal neurology, a left painless axillary mass, several subcutaneous pigmented nodules, and tenderness within the cervical, thoracic, and lumbar spine. CT of the brain revealed multiple enhancing lesions within the cerebrum and cerebellum, some with high attenuation on the non- contrast study consistent with hemorrhage. CT of the chest revealedAB large left...