Term of the day: "Mini Brain Sign"

Many tumors involving the axial skeleton can be expansile, have low signal intensity on T1-weighted images and high signal intensity on T2-weighted images, and involve the entire vertebral body. These imaging characteristics are nonspecific. Minibrain appearance has been found characteristic of Plasmacytoma. The characteristic appearance of thickened cortical struts is probably a result of a stress phenomenon from the lytic process of the plasmacytoma forcing the remainder of the bone to increase thickness as a compensatory response to weakening bone.

Requesting readers for any characteristic images you may have for sharing.

Further reading
Term of the day: "Mini Brain Sign" Reviewed by Sumer Sethi on Thursday, January 26, 2012 Rating: 5

1 comment:

Ramesh Pandey said...

Well I remember coming to know about this sign from Clyde Helms book on bones, he is a fantastic writer and his book is really A GAMUT.....

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