Radiology - Conditions (Subscribe)  

plain film:
* narrowing of disc space; osteophytes; bone sclerosis
* disc calcification
* vacuum disc phenomenon (nitrogen at sites of negative pressure)
MRI: endplate changes (Modic & deRoos)
* Type I (4%): decreased signal on T1; increased signal...

transscaphoid lunate dissociation

Woman with a 10 year history of poor peripheral circulation and hands blanching with the cold.
* Features in images
There is extensive calcification in the latissimus dorsi on the right side.
There is tapering of the fingers and distal phalanges, acro-osteolysis, with calcifications in the soft tissues.

* sheets of calcification in soft tissues
* tumors in 15%: stomach, breast, lung, ovary

aka: congenital hip dislocation (CDH or CHD)
* females (80-90%), 2/3 are firstborn
* white> blacks
* associated:
o breech delivery (6x cephalic),C-section, torticolis, family history
*...

Clinical presentation:
Routine chest in a 27 year old male with long standing abnormality.
There are multiple exostoses, which are associated with a modelling abnormality in the bones, particularly the proximal humeri. There is calcification over the proximal metaphysis of the right humerus and two projections from then upper part of the...

Clinical presentation: 6 month girl born with spastic paraplegia and dislocation of the right hip. Anal sphincter, poor tone. There was skin pigmentation over the lower lumbar spine, posteriorly.
There is a scoliosis with the point of maximal curvature at the level of the lowest thoracic vertebrae. There is a widened interpedicular...

short-limbed dwarfism ("diastrophic" means twisted, thus scoliosis)
x-ray features:
* short flared metaphyses with flattened epiphyses in tubular bones of extremities
* equinovarus deformity of feet -- major joints subluxed
* spine: kyphoscoliosis with gradual decrease in interpediculate distance toward caudal end of L-spine
* hands
...

Features in the image
Immature skeleton. There are multiple destructive foci in the proximal femora and adjoining pelvis.
Our records do not indicate whether there were any Thymus enlargement, which would be common in a child with this condition. Such diffuse bone involvement is a feature of this disorder which occurs mostly...

71 year old Indian man with a long history of back pain, recently worse. Had a prostatectomy 6 weeks ago. The image is a lateral tomogram that moves film and source as if they were ends of a lever. The unblurred fulcrum plane is revealed in more detail and enhances the...

Arthritic joint pains are common presenting complaints that can be difficult to distinguish from history and physical examination findings alone. Plain radiographs are extremely valuable to help differentiate between the many forms of arthritis. Classic radiographic findings in the extremities for osteoarthritis, psoriatic arthritis, rheumatoid arthritis, ankylosing spondylitis, gout, and...

Objectives: To compare progression of common degenerative findings between lumbar discs injected 10 years earlier with those same disc levels in matched subjects not exposed to discography.
Conclusion: Modern discography techniques using small gauge needle and limited pressurization resulted in accelerated disc degeneration, disc herniation, loss of disc height and signal...

History of progressive tender swelling of thumb in 81yr old caucasian female.
There is expansion of the metacarpal of the right thumb by a low density lesion with a well demarcated thick rim. The lesion contains some calcification. The appearance is complicated by a previous biopsy. The lesion is associated with...

* age: 10 - 50 yrs
* hands + wrists (50%) -- most common lesion of phalanges
* diaphyseal
* lytic, expansile
* thin sclerotic rim
* may be multilocular in...

Enchondromas are benign cartilaginous neoplasms that originate in the medullary canal of tubular bones, believed to result from growth of residual benign cartilage rests displaced from the physis. They are often incidental findings, occurring in just under 2% of the population based on autopsy series. Approximately half of all enchondromas occur...