Learning objectives
· To know the normal BM appearance in different sequences.
· To be familiar with different BM pathologies.
· To have a systemic approach to diagnose various BM diseases.
· To be aware when to ask for other modalities or contrast study.
Background
Bone marrow (BM) changes are a commonMRI finding associated with various pathologies,
making it a common accessory finding reported in different MSK and spine imaging performed as a requisite for other clinical purposes.
Findings and procedure details
To understand physiological and pathological changes that occurs to BM,
you have to be aware first with normal BM anatomy and the function of its components.
The BM consists of 3 components:
1. Trabecular bone
2. Red marrow
3. Yellow Marrow
Trabecular Bone:
It is formed of bridging trabeculae,
which forms the framework that supports both red and yellow marrow.
Red marrow:
It is also called cellular,
active,
myeloid and hematopoietic marrow.
It is composed mainly of different cellular elements (60% of its component) and...
Conclusion
Bone marrow alterations detected by MRI range from non-specific to grave findings.
Consequently it should be precisely examined in every case,
and worrisome features should be identified and noted to the clinician.
References
Chhabra,
A.,
Grande,
F.,
Farahani,
S.
and Carrino,
J.
(2019).Bone marrow lesions: A systematic diagnostic approach.
Hanrahan,
C.
and Shah,
L.
(2011).
MRI of Spinal Bone Marrow: Part 2,
T1-Weighted Imaging-Based Differential Diagnosis.American Journal of Roentgenology,
197(6),
pp.1309-1321.
Małkiewicz A,
Dziedzic M.
Bone marrow reconversion - imaging of physiological changes in bone marrow.
Polish journal of radiology.
77 (4): 45-50.
Vande Berg BC,
Malghem J,
Lecouvet FE et-al.
Magnetic resonance imaging of normal bone marrow.
Eur Radiol.
1999;8 (8): 1327-34.
Kaplan,
P.
(2001).MRI of the...