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Insights into Imaging
Fig. 11 | Insights into Imaging

Fig. 11

From: Multiparametric MRI: practical approach and pictorial review of a useful tool in the evaluation of brain tumours and tumour-like lesions

Fig. 11

Brain metastasis—recurrent tumour. Brain metastasis from primary breast carcinoma. a Brain metastasis in the right mesial frontal lobe motor area on axial T1-weighted post-contrast MRI. b Post-SRS scan at 29 weeks demonstrates increase in the lesion size with oedema. Multiparametric MRI demonstrates: (c) a borderline ADC (999 × 10−6 mm2/s), (d) a borderline rCBV ratio (1.9, arrow) on PWI and (e) highest Cho/Cr ratio of 3.6 (arrow) on multi-voxel MRS (TE = 30 ms). Two of the three parameters (DWI and MRS) suggest poor response and disease progression. f Surgical decision was taken to operate on the motor cortex and excision of right frontal tumour was performed. Histopathology demonstrates poorly differentiated metastatic adenocarcinoma with discernible focal ductal structures and tumour well demarcated from adjacent brain tissue

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