Scurvy past and present . merfeld,or merely as scattered cells, possibly the result of diape-desis. The blood-vessels in these areas are narrow andextremely thin-walled. The most typical site of hemor-rhage is beneath the periosteum, a lesion widely knownon account of its clinical significance (Fig. 16). Here theblood may extend for a considerable distance along theshaft, but rarely beyond the epiphyseal line. The clotforms readily, demonstrating that the nature of the hemor-rhage is not a defect in coagulation, and in its midst maybe seen fibrin, pigment, granulation tissue, and more orless f
Scurvy past and present . merfeld,or merely as scattered cells, possibly the result of diape-desis. The blood-vessels in these areas are narrow andextremely thin-walled. The most typical site of hemor-rhage is beneath the periosteum, a lesion widely knownon account of its clinical significance (Fig. 16). Here theblood may extend for a considerable distance along theshaft, but rarely beyond the epiphyseal line. The clotforms readily, demonstrating that the nature of the hemor-rhage is not a defect in coagulation, and in its midst maybe seen fibrin, pigment, granulation tissue, and more orless firm connective tissue—constituting the callus. Theinner surface of the periosteum is frequently lined withnewly-formed bone and with a more or less dense deposi-tion of lime salts, which becomes heavier in the course ofthe healing process, and is readily observed in radio-graphs. This periostitis ossificans may result in the clotbeing surrounded by a perfect shell of bone, with bonycolumns penetrating the deeper Fig. 6.—Posterior-anterior view of shoulder of infant (R. S.) 17 months old. Severe scurvy. Subperiosteal hemorrhage of humerus, and separation of upper epiphysis.
Size: 1163px × 2148px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookid390020863480, bookyear1920
