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Sever disease
osteochondrosis of the apophysis of the os calcis apopohysis becomes dense and sclerotic and undergoes fragmentation difficult to differentiate from normal finding on plain films apophysis normally varies greatly and may ossify from several centers

Showing AVN of humeral heads and vertebral changes

spinal muscular atrophy. Notes and links to radiology illustrations

Radiology case 338-776

Radiology case 338-4232

spontaneous osteolysis several syndromes of "vanishing bones": (Cf: rapid demineralization) idiopathic hereditary osteolysis autosomal dominant, manifest in early childhood carpals + tarsals involved first autosomal-recessive carpal and tarsal osteolysis idiopathic osteolysis with nephropathy carpals, tarsals, adjacent tubular bones involved azotemia --> death in early adulthood massive osteolysis of Gorham angiomatous...

Stress ("march") Fracture, 3rd Metatarsal The only radiographic abnormality detected is subtle periosteal reaction in the diaphysis of the 3rd left metatarsal. No bone destruction is evident. No fracture is seen. Radiographic findings in a patient with clinical history of "being on his feet a lot" suggest stress fracture of the...

A multi-organ disease (chest, bone, GI, etc.) of unknown etiology, affecting F> M. Immune? Abnormal collagen metabolism? Vascular abnormality? Clinically, Skin thickening (edema ->fibrosis) Muscle weakness Raynaud's phenomenon -- paroxysmal occlusion of digital arteries. Can be seen as isolated disease of associated with other entities including SLE, RA, dermatomyositis,...

thyroid acropachy
# periosteal reaction
* metacarpals
* long bones of lower limbs
# pretibial myxedema
# exophthalmos

Radiology case 462-23 Clinical presentation: Swelling and discomfort in the left ankle in an adult male from India.

Radiology case 338-231

Radiology case 458-23 Clinical presentation: Gradual onset of pain and swelling in the left knee in a 30 year old man, originally from India.

Radiology case 311-231

Illustrated Radiology lecture on bone Tumors