Key facts Distinct type of slow-growing ependymoma.Most common tumor of conus/cauda equina/filum terminale.Cysts,hemorrhage common（may cause acute nonaneurysmal SAH）Often presents with back pain,and can be missed if...Key facts Distinct type of slow-growing ependymoma.Most common tumor of conus/cauda equina/filum terminale.Cysts,hemorrhage common（may cause acute nonaneurysmal SAH）Often presents with back pain,and can be missed if scans don＇t include conus!Imaging finding General features Best imaging clue is enhancing cauda equina mass with hemorrhage.展开更多
Key Facts Definition:benign osteoblastic tumor with central core of vascular osteoid tissue,peripheral sclerosis.Osteoid osteoma(OO)=tumor of children,young adults.10%in spine(most common cause of painful scoliosis in...Key Facts Definition:benign osteoblastic tumor with central core of vascular osteoid tissue,peripheral sclerosis.Osteoid osteoma(OO)=tumor of children,young adults.10%in spine(most common cause of painful scoliosis in adolescents).Classic presentation=night pain relieved by salicylates/NSAIDS.Imaging findings:less than 1.5 cm round low density and surrounding sclerosis.展开更多
Key FactsDefinition: Benign vertebral body vascular tumor.Classic imaging appearance: Hypodense lesion (CT) with coarse, verticallyoriented trabeculae;hyperintense (MRI) on both T1WI and T2WI.Most common spinal axis t...Key FactsDefinition: Benign vertebral body vascular tumor.Classic imaging appearance: Hypodense lesion (CT) with coarse, verticallyoriented trabeculae;hyperintense (MRI) on both T1WI and T2WI.Most common spinal axis tumor: (1) Incidental lesion identified on imaging performed for unrelated reasons. (2) Rarer presentation (clinical or radiographic) is “aggressive hemangioma”.Radiographic diagnostic criteria are lesion growth, bone destruction, vertebral collapse, absence of fat in lesion, and active vascular component.May extend epidurally and cause cord compression.展开更多
文摘Key facts Distinct type of slow-growing ependymoma.Most common tumor of conus/cauda equina/filum terminale.Cysts,hemorrhage common（may cause acute nonaneurysmal SAH）Often presents with back pain,and can be missed if scans don＇t include conus!Imaging finding General features Best imaging clue is enhancing cauda equina mass with hemorrhage.
文摘Key Facts Definition:benign osteoblastic tumor with central core of vascular osteoid tissue,peripheral sclerosis.Osteoid osteoma(OO)=tumor of children,young adults.10%in spine(most common cause of painful scoliosis in adolescents).Classic presentation=night pain relieved by salicylates/NSAIDS.Imaging findings:less than 1.5 cm round low density and surrounding sclerosis.
文摘Key FactsDefinition: Benign vertebral body vascular tumor.Classic imaging appearance: Hypodense lesion (CT) with coarse, verticallyoriented trabeculae;hyperintense (MRI) on both T1WI and T2WI.Most common spinal axis tumor: (1) Incidental lesion identified on imaging performed for unrelated reasons. (2) Rarer presentation (clinical or radiographic) is “aggressive hemangioma”.Radiographic diagnostic criteria are lesion growth, bone destruction, vertebral collapse, absence of fat in lesion, and active vascular component.May extend epidurally and cause cord compression.
