"MRI "
"T1: decreased signal with loss of normal fatty marrow signal"
"T2: high signal, often heterogeneous, may be striking"
"Typically, patients present with a spontaneous onset of hip pain, usually progressive over several weeks. Patients generally do not have risk factors for avascular necrosis and do not develop it."
Expected headings
"MRI "
"Signal characteristics"
"In some instances, patients can develop similar changes in the opposite hip or other joints; such cases should be referred to as regional migratory osteoporosis."
"Typically, bone scintigraphy demonstrates markedly increased homogeneous uptake in the femoral head; a finding that is seen well before osteopenia is seen on plain films. Bone scintigraphy is not the modality of choice for evaluating these patients."
"reflex sympathetic dystrophy: more commonly involves upper extremities; vasomotor dysfunction and skin changes are more often seen; more debilitating"
"reflex sympathetic dystrophy: more commonly involves upper extremities; vasomotor dysfunction and skin changes are more often seen; more debilitating"