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PAROSTEAL OSTEOSARCOMA, SPINE

Case 804873
MSK › Infection
old
2 images
Parosteal osteosarcoma of the spine. The AP radiograph might make you think of TB with paraspinal abcess, but the lateral shows that the ossification is confined to the posterior elements with sparing of the disc spaces.
By John Hunter, Radiologist
09/24/2011.
4.0
2 ratings

PSORIATIC ARTHRITIS WITH PROLIFERATIVE EROSI…

Case 804893
MSK › Inflammatory
old
4 images
Psoriatic arthritis with proliferative erosions.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

ANKYLOSING SPONDYLITIS WITH OSSIFICATION BET…

Case 805176
MSK › Inflammatory
old
1 image
Ankylosing spondylitis with fusion of SI joints and the "dagger sign" or "trolley track sign". These signs indicate the linear midline band of sclerosis secondary to ossification between adjacent spinous processes. The outer "rails" of the "t … [view case]
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

CHRONIC OSTEOMYELITIS WITH DRAINING SINUS

Case 805211
MSK › Infection
old
4 images
Chronic osteomyelitis with chronic draining sinus.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

EOSINOPHILIC GRANULOMA (LCH) WITH SKULL LESI…

Case 805236
MSK › Inflammatory
old
2 images
Eosinophilic granuloma (Langerhans Cell Histiocytosis or LCH) with classic skull lesion with "beveled edges". This is the limited form of LCH and involes the bone frequently, with the skull (25%), ribs & femur(14% each) and pelvis(10%) the most common sites. Ther … [view case]
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

REITER'S SYNDROME WITH RETROCALCANEAL BURSAL…

Case 805372
MSK › Inflammatory
old
1 CR image
Reiter's syndrome with retrocalcaneal bursa erosive disease. Differential diagnosis of retrocalcaneal bursal erosion includes Reiter's, psoriatic arthritis and rheumatoid arthritis.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

FREIBERG'S INFRACTION

Case 805055
MSK › Normal/Variants
old
1 image
Freiberg's infraction. This condition is often seen in young women. Pathogenesis appears related to chronic repetitive stress to the metatarsal head leading to ischemic necrosis of the subchondral bone, with subsequent collapse and fragmentation. Some have implicated wearing of high heel shoes in the etiology.
By John Hunter, Radiologist
09/24/2011.
1 comment
3.0
1 rating

SEPTIC ARTHRITIS, RIGHT HIP

Case 804967
MSK › Inflammatory
old
2 images
Septic arthritis, bacterial, in IV drug abuser.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

RETROCALCANEAL BURSAL EROSION, LEFT CALCANEU…

Case 803755
MSK › Inflammatory
old
2 images
Retrocalcaneal bursal erosion, left calcaneus in a patient with known rheumatoid arthritis. DDX includes Reiter's and Psoriasis.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

ADVANCED ANKYLOSING SPONDYLITIS, HIPS AND SI…

Case 803763
MSK › Inflammatory
old
2 images
Ankylosing spondylitis
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

OSSEOUS AND PULMONARY SARCOID

Case 805089
MSK › Inflammatory
old
3 images
Osseous and pulmonary sarcoid.
By John Hunter, Radiologist
09/24/2011.
4.0
2 ratings

RHEUMATOID ARTHRITIS WITH DISTAL CLAVICLE ER…

Case 805331
MSK › Inflammatory
old
3 images
Rheumatoid arthritis with shoulder hemi-arthroplasty. Note the classic pattern of distal clavicle erosion. The humeral prosthesis has eroded the glenoid and migrated superiorly, the latter findings consistent with chronic rotator cuff tear. Additional case of RA with bilatera … [view case]
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

OSTEOARTHRITIS OF THE HIP (WITH MR)

Case 805282
MSK › Inflammatory
old
3 images
Osteoarthritis, right hip.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

RHEUMATOID ARTHRITIS, HANDS, WRISTS, SHOULDER

Case 803446
MSK › Inflammatory
old
3 images
Rheumatoid arthritis
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

RA/OA WITH EROSIVE LESIONS

Case 803908
MSK › Inflammatory
old
2 images
Erosions secondary to rheumatoid arthritis in the MCP joints of the index fingers bilaterally as well as the left thumb IP joint. There is also osteoarthritis involving the first CMC joints bilaterally.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

RHEUMATOID ARTHRITIS WITH C1-2 SUBLUXATION A…

Case 803921
MSK › Inflammatory
old
2 images
Rheumatoid arthritis with C1-2 subluxation (increased atlanto-dens interval) and erosion of dens.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

CHRONIC TENDONOPATHY VS PARTIAL TEAR DISTAL …

Case 796465
MSK › Normal/Variants
old
8 MR images
Chronic tendonopathy vs partial tear distal achilles tendon at insertion.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

BILATERAL HIP DYSPLASIA: LEFT ANTERIOR SUPE…

Case 797996
MSK › Normal/Variants
old
5 MR images
Bilateral hip dysplasia: left anterior superior labral tear.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

OSTEOMYELITIS WITH SEPTIC ARTHRITIS, THIRD M…

Case 796219
MSK › Inflammatory
old
6 MR images
Osteomyelitis with septic arthritis.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

OCCULT SALTER-HARRIS TYPE 2 FRACTURE, FIRST …

Case 797309
MSK › Trauma
old
3 MR images
Occult Salter-Harris Type 2 fracture, first metatarsal. Follow up films showed some periosteal reaction and a fracture line.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

DERMATOMYOSITIS

Case 803983
MSK › Inflammatory
old
4 images
Dermatomyositis. This patient showed typical calcifications. This is the same patient as in Case 135.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

TOPHACEOUS GOUT, FOOT

Case 804141
MSK › Inflammatory
old
2 images
Tophaceous gout with erosion and tophus 1st MTP and multiple gouty erosions of the TMT joints.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

OSTEOSARCOMA, DISTAL FEMUR

Case 804313
MSK › Trauma
old
2 images
Osteosarcoma, distal femur.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

ANKYLOSING SPONDYLITIS SI JOINTS WITH CT

Case 804364
MSK › Inflammatory
old
4 images
Ankylosing spondylitis
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

MONTEGGIA FRACTURE

Case 1206962
MSK › Trauma
22 year old male
4 CR images
Monteggia fx Ulnar shaft fx with radial head dislocation
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

GALEAZZI FRACTURE

Case 802459
MSK › Trauma
old
2 images
Galeazzi fracture. Forearm ring fractures tend to fracture or disrupt the ring in two places. The "Italian fractures" are good examples of this principle. Monteggia: ulnar shaft + dislocation of radio-capitellar joint Galeazzi: radial shaft + dislocation of DRUJ … [view case]
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

ABC (ANEURYSMAL BONE CYST), TALUS

Case 797224
MSK › Benign Mass, Cyst
old
7 MR images
Aneurysmal Bone Cyst (ABC)
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

RADIAL HEAD FRACTURE WITH LARGE ANTERIOR JOI…

Case 49832838
MSK › Trauma
21 year old female
4 CR images
Radial head fracture with large anterior joint effusion. Fracture pain preventing patient from proper radiographic positioning. Large anterior joint effusion. Subtle radial head fracture.
By Jason Johnson, Resident
09/24/2011.
3.0
1 rating

NORMAL LIGAMENTS OF ASPECT MEDIAL OF THE ANK…

Case 10810696
MSK › Normal/Variants
old
6 MR images
LIGAMENTOS NORMALES DEL ASPECTO MEDIAL DEL TOBILLO. NORMAL LIGAMENTS OF ASPECT MEDIAL OF THE ANKLE. Los ligamentos normales, se observan como imagenes lineales e hipointensas en todas las secuencias, que unen estructuras oseas. Los del aspecto medial del tobillo se agrupa … [view case]
By DIEGO HERNAN LLANOS, Radiologist
09/24/2011.
3.0
1 rating

GOUT

Case 39107
MSK › Inflammatory
34 year old male
2 CR images
Gout arthropathy There is soft tissue swelling over the right second and third and left fifth DIP joints. Erosions are present along the medial aspect of the right second and third and left fifth DIP joints as well as at the base of the left third middle phalanx. There is a bony fragmen … [view case]
By Jeffrey Kanne, Radiologist
09/24/2011.
3.0
1 rating

ELBOW INJURY

Case 8028820
MSK › Trauma
old female
4 CR images
Longitudinal fracture through the lateral aspect of the radial head, with minimal depression.  No other fracture or dislocation is seen. Trauma to R elbow.  Presents to ER. History of the Procedure: Radial head and neck fractures and dislocations have been treated by closed an … [view case]
By Bertram Newmark, Radiologist
09/24/2011.
3.0
1 rating

FRACTURE PROXIMAL HUMERUS ON 5 Y/O XR SHOULD…

Case 11943309
MSK › Trauma
5 year old female
2 CR images
Transverse fracture of proximal humerus Transverse fracture of proximal humerus
By alex maclennan, Radiologist
09/24/2011.
3.0
1 rating

ENCHONDROMA OF HAND

Case 10636936
MSK › Neoplasm
52 year old male
4 images (CR, MR)
ENCHONDROMA Se aprecia lesión ovalada, que compromete el tercio medio de la falange proximal del 1 dedo. es hipointensa en T1 e hiperintensa en T2 y STIR, que realza de forma homogenea con el contraste. No hay ruptura de la cortical, ni masa de tejidos blandos.
By DIEGO HERNAN LLANOS, Radiologist
09/24/2011.
1 comment
3.0
1 rating

SYNOVIAL OSTEOCHONDROMATOSIS, SHOULDER

Case 804983
MSK › Neoplasm
old
1 image
Synovial osteochondromatosis.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

SKELETAL DYSPLASIA

Case 834824
MSK › Neoplasm
old
1 image
Based on these findings, one should realize that one is dealing with a skeletal dysplasia. The major abnormality here is the presence of diffuse skeletal sclerosis. Although there are jillions of different skeletal dysplasias, most of them are fairly rare. However, some dyspl … [view case]
By Michael Richardson, Radiologist
09/24/2011.
1 comment
3.0
1 rating

CHONDROSARCOMA, RIGHT TRANSVERSE PROCESS OF …

Case 801939
MSK › Neoplasm
old
2 images
Chondrosarcoma, right transverse process of L1.
By John Hunter, Radiologist
09/24/2011.
3.0
1 rating

OSTEOSARCOMA WITH LUNG METS

Case 3959553
MSK › Neoplasm
old
12 images (CT, CR, MR)
By Jared Chugg, Resident
09/24/2011.
3.0
1 rating

OSTEOSARCOMA

Case 6454697
MSK › Neoplasm
8 year old male
17 images (CT, CR, MR, NM, Path)
3.0
1 rating

OSTEOGENESIS IMPERFECTA

Case 1828675
MSK › Congenital
old male
2 images
osteogenesis imperfecta • Osteopenia • Long gracile femoral diaphyses • Transverse fracture mid femoral diaphysis • Mild bowing abnormality present OSTEOGENESIS IMPERFECTA • Inherited disorder of connective tissue -> skeleton, ligaments, skin, sclera, dentin • Fo … [view case]
3.0
1 rating

SPRENGEL'S DEFORMITY, OMOVERTEBRAL BONE

Case 3604599
MSK › Congenital
old
2 CR images
Sprengel's deformity with omo-vertebral bone. Observe the upward course of the right clavicle as it extends laterally, compared to the left. Elevation of the right scapula is evident. In addition, an anomalous bone is present, extending from the right side of C7 to the medial border o … [view case]
By Greg Rogalski, Radiologist
09/24/2011.
3.0
1 rating

THALASSEMIA MAYOR (COOLEY' DISEASE)

Case 4187891
MSK › Congenital
16 year old male
7 images
By Julio Loureiro, Radiologist
09/24/2011.
1 comment
3.0
2 ratings

MELORHEOSTOSIS

Case 8469325
MSK › Congenital
old
5 CT images
Melorrheostosis This disease was described by Leri and Joanny in 1922. It is a rare, non-hereditary lesion that affects both sexes. It is usually apparent in early childhood and even in the first few days of life. About 50% of persons affected will develop the symptoms by 20 … [view case]
By nighthawk radiology, Radiologist
09/24/2011.
3.0
2 ratings

ANTERIOR TIBIAL FRACTURE, PCL (ORIGIN) AVULS…

Case 798558
MSK › Trauma
old
9 MR images
Anterior tibial fracture, PCL (origin) avulsion, posterolateral corner injury. With regard to the latter diagnosis, note the hemorrahge into the popliteus muscle and the disruption of the popliteus tendon.
By John Hunter, Radiologist
09/24/2011.
3.0
2 ratings

BUCKSHOT ON 22 Y/O XR LEG

Case 3650012
MSK › Trauma
22 year old male
4 CR images
shotgun injury 1. multiple metallic foreign bodies
By alex maclennan, Radiologist
09/24/2011.
3.0
2 ratings

LONGITUDINAL SPLIT TEAR, PERONEUS BREVIS TEN…

Case 796050
MSK › Trauma
old
1 MR image
Longitudinal split tear, peroneus brevis tendon. Notice how there appears to be three lateral tendons on the left, compared to the right. The two pieces of the p.brevis are on either side of the p.longus tendon creating this appearance.
By John Hunter, Radiologist
09/24/2011.
3.0
2 ratings

OCCULT STRESS FRACTURE, LEFT FEMORAL NECK

Case 801015
MSK › Trauma
old
6 images
Occult stress fracture, left femoral neck. Note the sclerotic band across the left femoral neck on the study from 12/30/99, representing the healing process of the fracture, not seen on earlier study.
By John Hunter, Radiologist
09/24/2011.
3.0
2 ratings

ADVANCED OA AND CPPD DEPOSITION DISEASE, HAN…

Case 802830
MSK › Inflammatory
old
2 images
Advanced OA and CPPD deposition disease
By John Hunter, Radiologist
09/24/2011.
2 comments
3.0
3 ratings

ANKYLOSING SPONDYLITIS C- AND L-SPINE, SI JO…

Case 803771
MSK › Inflammatory
old
3 images
Ankylosing spondylitis Note fusion of the SI joints as well as cervical facet joints, "bamboo spine" appearance of fine syndesmophytes in the cervical spine, and the anterior longitudinal ligament ossification and "shiny corners" of the lumbar spine. Note the erosions at C1-C2 on the coronal reconstructed image from the CT.
By John Hunter, Radiologist
09/24/2011.
3.3
3 ratings

CHANCE FRACTURE, L-4

Case 805203
MSK › Trauma
old
2 images
Chance fracture L4. These usually occur in rear seat passengers with lap belts. The horizontal fracture with splitting of the pedicles is characteristic. Small bowel injuries are frequently associated.
By John Hunter, Radiologist
09/24/2011.
3 comments
3.0
2 ratings

CERVICAL RIB

Case 19560981
MSK › Normal/Variants
63 year old female
3 CT images
Right Cervical Rib Motor and Sensory functions over ulnar,radial and median nerve distribution is normal. A cervical rib  occurs in 0.5% of subjects and is bilateral in half of these. It is attached to the transverse process of the 7th cervical vertebra and articulates wit … [view case]
By BENOY STARLY, Resident
09/24/2011.
1 comment
3.0
2 ratings