. A radiographic atlas of the pathologic changes of bones and joints . PLATE XLI. PLATE XLTI. EXTENSm; SUB-PERIOSTEAL HEMORRHAGE IM SCURVY—CHRONIC STAGE. The hemorrhage shows as a dark gray shadow, between the bone andthe raised periostenm. It extends from the level of the lesser trochanterto the epiphyseal line of the right femur. The shadow of the bone is darker than that of the other unaffectedside, because the hemorrhage surrounded the bone. The shadow of the hemorrhagic area is darker than in the precedingplate, because the clot was larger and PLATE XLII. 123 — OSTEOAIATA. (Pl
. A radiographic atlas of the pathologic changes of bones and joints . PLATE XLI. PLATE XLTI. EXTENSm; SUB-PERIOSTEAL HEMORRHAGE IM SCURVY—CHRONIC STAGE. The hemorrhage shows as a dark gray shadow, between the bone andthe raised periostenm. It extends from the level of the lesser trochanterto the epiphyseal line of the right femur. The shadow of the bone is darker than that of the other unaffectedside, because the hemorrhage surrounded the bone. The shadow of the hemorrhagic area is darker than in the precedingplate, because the clot was larger and PLATE XLII. 123 — OSTEOAIATA. (Plate XLIII: New bone growths may start from the peri-osteum—exostosis—or they may start from the interior of thebone—enostosis. The former may appear anywhere; the latterare seldom found outside of the bones of the head. They wouldbe recognized on the skiagram as irregular, dark masses, attachedto the bone. OSTEOID CHONDROMA. (Plate XLIV) : Osteoid chondroma develop beneath the peri-osteum most frequently in the femur or tibia, near the knee joint,forming a club-shaped enlargement of the bone, resembling some-what the immature bone tissue seen beneath the periosteum indeveloping bone. — 124 — PLATE XLIII. MULTIPLE EXOSTOSES OF THE BONES OF THE FOREARM. The irregular dark shadows projecting from the sides of the ulna andradius, near their lower ends, represent the new bone growth from the periosteum.
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