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What does MRI of thoracic stating mildly heterogenous marrow signal due to yellow conversion mean?

Apr 2014
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Practicing since : 2004
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My mri of my thoracic stated mildly heterogenous marrow signal,may be due to yellow conversion. Should I be worried
Posted Wed, 18 Dec 2013 in X-ray, Lab tests and Scans
Answered by Dr. Indu Kumar 4 hours later
Brief Answer: Your MRI is rightly reported & it is normalfinding Detailed Answer: Hello XXXXX Thanks for writing to XXXXXXX The bone marrow in humans is predominantly red in infancy,which is mostly made of red cells and with age it gets replaced by fat components and is transformed to yellow marrow, which has all the same constituents as red, except that fat cells make up the vast majority and it causes poor vascularity. Distribution varies with age and from one individual to another. In MRI scan the marrow shows mild heterogeneous signals when yellow component starts appearing in greater proportion. At your age of 48 years this is perfectly normal in appearance. Please do not worry about this and your MRI scan is rightly reported. Get well soon. Hope i have answered your query. Further queries are most welcome. Take Care Dr.Indu XXXXXXX
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