T. Kaneda et al., MAGNETIC-RESONANCE APPEARANCE OF BONE-MARROW IN THE MANDIBLE AT DIFFERENT AGES, Oral surgery, oral medicine, oral pathology, oral radiology and endodontics, 82(2), 1996, pp. 229-233
Citations number
15
Categorie Soggetti
Pathology,Surgery,"Dentistry,Oral Surgery & Medicine
To differentiate pathologic states of bone marrow from normal age-rela
ted marrow conversion, magnetic resonance appearances of the mandible
were analyzed cross-sectionally according to age in 73 normal voluntee
rs. Low signal intensities of red marrow first changed to high signal
intensities in the anterior region of the mandibular body. With increa
se in age, marrow conversion was observed in the premolar/molar region
, angle, ramus, and condyle regions in that order. No red marrow was r
ecognized in the body of the mandible of subjects more than 30 years o
ld. After the age of 30, the majority of the subjects showed high sign
al intensities in the entire bone marrow of the mandible. However, one
subject over 30 years of age showed some portions of red marrow in th
e ramus and condyle. This knowledge about age-related marrow conversio
n of the mandible on magnetic resonance imaging will be useful in the
visual differentiation from abnormal bone marrow, such as anemias, inf
lammatory diseases, infiltrative neoplastic disorders, and metastatic
diseases.