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Figure 1: Images showing lesion in the right frontal lobe that was biopsied. T2W axial image (a) shows the presence of T2 hyperintense lesion with ill-defined margins and surrounding edema. On T1W image, (b) the lesion is hypointense and shows the areas of suppression on FLAIR (c). No area of blooming noted on susceptibility weighted imaging (d). No diffusion restriction noted as shown on trace image (e) and ADC map (f). No contrast enhancement was noted (g). No area of raised perfusion was seen (h). Multiple well-defined expansile bony lesions were identified upon spine screening, involving manubrium sterni (i), right coracoid process (j), and left acromion process (k). The lesions are hyperintense on T2, with areas of hypointensity within, suggestive of chondroid matrix. Hand radiograph (l) revealed geographic lytic lesion involving distal radius with narrow zone of transition

Figure 1: Images showing lesion in the right frontal lobe that was biopsied. T2W axial image (a) shows the presence of T2 hyperintense lesion with ill-defined margins and surrounding edema. On T1W image, (b) the lesion is hypointense and shows the areas of suppression on FLAIR (c). No area of blooming noted on susceptibility weighted imaging (d). No diffusion restriction noted as shown on trace image (e) and ADC map (f). No contrast enhancement was noted (g). No area of raised perfusion was seen (h). Multiple well-defined expansile bony lesions were identified upon spine screening, involving manubrium sterni (i), right coracoid process (j), and left acromion process (k). The lesions are hyperintense on T2, with areas of hypointensity within, suggestive of chondroid matrix. Hand radiograph (l) revealed geographic lytic lesion involving distal radius with narrow zone of transition