. The American journal of roentgenology, radium therapy and nuclear medicine . FiG. 3. AciTE Infection Beneath destroyed. Medcllarv cavity intact. In an acute osteomyelitis we get thefollowing picture upon a roentgen ray infection, having lodged in the medul-lary cavity, takes the path of least resis-tance and extends along the medullarycavity, and we get vacuolated spacesrepresented by areas of lessened infection now spreads to the bonycortex and travels irregularly by means. Fic. 4. Infection Arising in Joint, Then InvolvingTHE Heads of .All Three Bone
. The American journal of roentgenology, radium therapy and nuclear medicine . FiG. 3. AciTE Infection Beneath destroyed. Medcllarv cavity intact. In an acute osteomyelitis we get thefollowing picture upon a roentgen ray infection, having lodged in the medul-lary cavity, takes the path of least resis-tance and extends along the medullarycavity, and we get vacuolated spacesrepresented by areas of lessened infection now spreads to the bonycortex and travels irregularly by means. Fic. 4. Infection Arising in Joint, Then InvolvingTHE Heads of .All Three Bones. ing the bone as the growth advances, butnever appears as separate areas with nor-mal bone in between. The osteomyelitis infection will finallypierce the cortex in one or more places,leaving areas of normal cortex in again we have another importantpoint of differential diagnosis, as in malig-nancy when the growth reaches the cortexit destroys it completely as a whole, andnot in parts, as osteomyehtis does. 262 Osteomyelitis Thus far we have been discussing theacute destructive process; but with thepiercing of the cortex and the acquiredresistance of the tissues, nature now at-tempts to Hmit the destructive processes,and this is done by building up a new bonywall at the edge of the infection. To pro-duce bone reaction there must be a stimu-lation, and the point of stimulation isalways at the point where the infection
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