By Hakan Ilaslan, Murali Sundaram
This entire atlas is exclusive in being dedicated to the MRI appearances of bone marrow within the axial and appendicular skeleton of adults and youngsters. basic MRI findings, together with universal editions and degenerative alterations, are first documented. MRI appearances within the whole spectrum of neoplastic and non-neoplastic infiltrative marrow issues are then provided, with accompanying explanatory textual content. one of the stipulations thought of are a number of myeloma, the extreme and persistent leukemias, diffuse metastases, diffuse lymphomas, the anemias, polycythemia vera, myelofibrosis, garage problems, and infections. attribute alterations to bone marrow following quite a few kinds of remedy also are displayed and mentioned. the chosen photographs replicate using numerous sequences and strategies, reminiscent of fats suppression, and contrast-enhanced imaging.
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Additional info for Pediatric and Adult MRI Atlas of Bone Marrow: Normal Appearances, Variants and Diffuse Disease States
C intervertebral discs on T1-weighted image especially near endplates. 5 MRI of Normal Axial Skeleton Vertebral marrow of young adults typically shows intermediate signal intensity on T1-weighted images although diffuse fatty signal with minimal red marrow could also be seen. Conversely, older individuals can have relatively diffuse red marrow, instead of the expected age-related high signal intensity fatty marrow on T1-weighted images. Although technical parameters may partially account for variability among different individuals, variations in red marrow cellularity may play a role, regardless of the cause .
5 a MRI of Normal Axial Skeleton 49 b c Fig. 57 A 23-year-old woman. T1-weighted (a), T2-weighted (b), and T2-weighted fat-suppressed (c) sagittal images of the lumbar spine demonstrate mild red marrow signal that is slightly more prominent in the anterior vertebral bodies (arrows) a b c Fig. 58 A 16-year-old boy. T1-weighted (a), T2-weighted (b), and T2-weighted fat-suppressed (c) sagittal images of the lumbar spine demonstrate diffuse red marrow in the vertebral body with sparing of “key-shaped” fatty signal along the basivertebral veins 50 Fig.
Findings are typical of bone marrow neovascularity in the setting of multiple myeloma 1 38 a Fig. 43 A 19-year-old man. Coronal T2-weighted fat-suppressed (a) and T1-weighted (b) images demonstrate a linear T2 hyperintense structure (arrows) in the right femoral diaphysis consistent with Normal Bone Marrow: In Utero Through the Adult Years b intraosseous vessels (arrows). 4 MRI of the Normal Appendicular Skeleton 39 a b c Fig. 44 A 17-year-old boy. 5 1 MRI of Normal Axial Skeleton In the skull, a thin layer of marrow is visualized between the inner and outer tables (Fig.