Radiology - Conditions (Subscribe)  

Radiology case 338-1552 Clinical presentation: Lumbar spine of a child, no other detail.
The vertebrae have a thick band of abnormally increased bone density at their upper and lower margins. Within the body of each vertebra, there are curved areas of density change that roughly parallel the vertebral margins. The appearance can...

rare, autosomal dominant bone disorder
* multiple, small, circumscribed round or ovoid areas of increased bone density, widely distributed, caused by condensations of the spongiosa
* NO symptoms
associated with:
* dermatofibrosis lenticularis disseminata
* scleroderma
* syndactyly
* dwarfism
* endocrine abnormalities
* melorrheostosis
* cleft palate

Osteosarcoma is the most common malignant primary bone tumor. Osteosarcoma tends to occur in children and young adults typically 10-25 or 30 years of age. Osteosarcomas also tend to occur in patients in the sixth decade, likely related to malignant degeneration of Paget's disease. It is said that they tend...

Radiology case 444-3221 5 year old boy with with swelling of the right thigh.
The density of the diaphysis is expanded to an oval by dense thickening of the bone with a centre of radius in mid-diaphysis. There is an additional adjacent soft tissue mass, which has displaced normal muscles. The...

Radiology case 415-3221 16 year old girl with painful swollen right shoulder.
There is a reduced bone density in the proximal metaphysis and the fusing epiphysis of the right humerus. The endosteal margin of the lesion in the diaphysis is ill-defined with a wide zone of transition between normal and abnormal...

ACR-code 451-3221 14 year old girl with pain and swelling above the right knee.
The skeleton is immature. There is expansion and increased density of the distal end of the right femur. The centre of radius of the tumour is in the distal femoral metaphysis. There is a soft tissue...

Radiology case 454-3221 19 year old male with pain in the knee.
There is a lytic area which lies on the medial side of the proximal metaphysis of the right tibia. The lesion is not well demarcated over its whole boundary. The endosteal margin has a wide zone of transition between...

Radiology case 332-3221 20 year old male with back pain.
The view is from an intravenous urogram, which shows normal pelvicalyceal systems and ureters. There is increased density on the right side of the 3rd lumbar vertebra. The density overlies the body, but also lies outside the vertebra. It is responsible...

Radiology case 4411-3221 84 year old woman with pain in the right hip.
There is an irregular lytic process of the right ilium with relative sparing of the iliac crest. The process breaches the cortex between and including the anterior iliac spines. The endosteal margins of the lytic process are ill-defined,...

Radiology case 4412-3221 72 year old man with pain on walking.
There is a general abnormality of bone architecture in the pelvis with coarsening and increased density. There is loss of normal cortico-medullary distinction. The bone issoftened with protrusio acetabuli, particularly on the left side. There is an additional process that...

"idiopathic, familial hypertrophic osteoarthropathy"
* boys at puberty
* blacks> whites
* familial
* periosteal reaction
o proximal phalanges, distal long bones of legs and forearms
o cortical thickening without medullary narrowing
* thick skin:...

disease of unknown etiology involving destruction and reparation
* age> 40y; M:F 2:1
* skull
o osteoporosis circumscripta (outer table destroyed only)
o "cotton wool" appearance
...

Clinical presentation: 80 year old lady with pain in her right hip.
There is increased density of the right hemi-pelvis. The bone dimensions are increased. There is coarsening of the bone architecture with loss of detail. There is protrusio acetabulae, indicating bone softening. ACR-code 448-843

ACR-code 338-84 Four cases of patients in late middle age with back pain.
The first image shows increased density in the vertebra with loss of fine detail and a coarse zone of increased density making a thickened rim around the vertebra, a 'picture frame' vertebra. The CT cuts show irregular variation...

Radiology case 438-843: Paget's Disease Clinical presentation: Mature adult male with painful hands.
There is increased density of the proximal phalanx of the left middle finger, the left 2nd metacarpal and the base of the right 5th metacarpal. The bones no longer show the pattern of cortex and medulla that can be...