The Spinal Bone Marrow in Health and Disease.

Radiologists play a key role in identifying, characterizing, sampling, and, in some cases, treating abnormalities of the spinal bone marrow. This article discusses the composition and dynamic nature of the bone marrow, and how these changes directly correlate with the imaging appearance. Examples of entities that are diffuse, infiltrative, solitary, and multifocal are shown and diagnostic dilemmas and mimics are described The radiologist must be aware of the expected appearance and variability of the bone marrow in order to provide timely, accurate diagnoses.