Patterns of Red Marrow in the Adult Femur

Abstract

A considerably higher number of adults showed pattern B than pattern C. This suggests that regeneration of diaphyseal marrow precedes that of the distal marrow in an individual long bone or possibly that conversion of the latter precedes the former, which is different from that proposed in the literature.

Three dosimetry models of lipoma arborescens treated by90Y synovectomy

“…It should also be noted that there is no active bone marrow at the distal end of the femur, as marrow production occurs primarily in the proximal end of the femur. 38 Our OEDIPE simulations show that the highest isodose curves reaching the distal end of the femur are approximately 7 Gy to the right femur and 9 Gy to the left femur.…”

Proximal radial pseudotumour: magnetic resonance imaging appearances and prevalence

“…This rarity of marrow signal abnormality in and around the elbow joint is confi rmed in a study that had only 1 elbow MRI study with a report of incidentally noted 'abnormal or heterogenous marrow signal' out of a total of 49,678 MRI studies [11]. A more recent study suggested wide variation in red marrow signal with diaphyseal marrow reconversion appearing to precede that of distal metaphyseal marrow in the femur [5]. Focal nodular hyperplasia of red marrow has been described as an abundance of focal red marrow due to aberrant red to yellow marrow conversion [12].…”

“…The bone marrow is a complex organ whose proportions can vary greatly depending upon site and age [2,3], with typical conversion of yellow to red marrow in long bones occurring from the end of the bone to the central diaphyseal region [4]. Some studies have demonstrated that variations in this process exist [5]. However, islands of red marrow can persist from the original conversion stage into adulthood [3].…”

Postmortem measurement of caffeine in bone marrow: Influence of sample location and correlation with blood concentration

“…1A), and similar on the right and left sides. In contrast, BM in long bones such as the femur undergoes physiological conversion with age from active red to inactive yellow BM until all red marrow is, normally, located exclusively in the proximal part [14]. Reconversion from yellow to red BM can be induced by certain pathological or therapeutic events [15][16][17][18].…”