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KOHLER'S BONE DISEASE

Case 2706175
MSK › Trauma
4 year old female
2 images
Kohler's Bone Disease Flattening and sclerosis of the tarsal navicular in a skeletally immature individual. Avascular necrosis of tarsal navicular is known as Kohler's bone disease. It most commonly occurs between the ages of 3 and 10 years in boys. Characteristic findings … [view case]
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BLOUNT DISEASE

Case 10992087
MSK › Other
8 year 2 month old female
3 CR images
Tibia vara (Blount disease) Bilateral weight bearing lower extremity radiograph demonstrates tibia vara with small medial metaphysis and epiphyses. There is beaking seen bilaterally.  PATHOGENESIS Blount disease is relatively common and likely results from abnormal stress on … [view case]
09/24/2011.
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Case 51915434

MSK › Trauma
10 month old male
4 CR images
Child abuse 1) Thin longitudinal osseous fragment adjacent to the distal subephiphyseal zone of the distal left humerus. 2) Elbow effusion with prominent posterior fat pad. This left elbow radiograph demonstrates a classic metaphaseal lesion (CML), the most highly specific … [view case]
By Stefan Hamelin, Radiologist
09/24/2011.
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SPONDYLO-EPIPHYSEAL DYSPLASIA CONGENITA

Case 864496
MSK › Congenital
old
2 images (CR, Other)
Spondyloepiphyseal dysplasia Congenita CLINICAL · Newborn infants are short and disproportionate. · While the head circumference is usually normal, hypertelorism is often present, the face is flat, and cleft palate is often seen. · The long bones and spine are abnormal. Ou … [view case]
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NEUROPATHIC JOINT

Case 1825123
MSK › Other
5 year old female
3 images
neuropathic joint Deformation and sclerosis of the left calcaneous with loss of soft tissue plane definition and periarticular soft tissue swelling. Specific disorders leading to neuroparthropathies include central lesions such as syphilis, syringomyelia, meningomyelocele, mul … [view case]
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KNEE PAIN, BILATERAL

Case 12187792
MSK › Congenital
old male
4 CR images
Multiple epiphyseal dysplasia (double-layered patella).
By Dean Thornton, Radiologist
09/24/2011.
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OSTEOMYELITIS

Case 38860114
MSK › Infection
65 year old female
4 CR images
osteomyelitis with findings concerning for necrotizing fasciitis. Erosion of first distal phalangeal tuft.  Soft tissue deformity with subcutaneous gas. Necrotizing fasciitis is a clinical diagnosis.  If there is clinical concern, there needs to be a tissue diangosis regardle … [view case]
By Sheldon Jensen, Resident
09/24/2011.
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OSTEOMYELITIS

Case 5394951
MSK › Infection
old
2 images
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PELVIC ABSCESS

Case 1419
MSK › Infection
old
2 MR images
This is an abscess.
By Ed Weinberger, Radiologist
09/24/2011.
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PARASPINAL MYOSITIS AND ABSCESS IN A CHILD W…

Case 3150
MSK › Infection
2 year 1 month old female
2 MR images
Back pain, a mass, and fever in a child with aplastic anemia
By Corning Benton, Radiologist
09/24/2011.
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ANEURYSMAL BONE CYST

Case 1183693
MSK › Benign Mass, Cyst
15 year old male
1 CR image
Aneurysmal Bone Cyst A litic lesion in the right upper arm. The aneurysmal bone cyst (ABC) is an expansile cystic lesion that most often affects persons during their second decade of life. The ABC may occur in any bone in the body. Although benign, the ABC can be locally aggr … [view case]
By Rolando Reyna, Radiologist
09/24/2011.
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CHONDROBASTOMA

Case 32576383
MSK › Benign Mass, Cyst
14 year old male
1 CR image
By Eduardo Just, Other Physician
09/24/2011.
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CHONDROBLASTOMA OF THE HIP

Case 3206389
MSK › Benign Mass, Cyst
22 year old male
1 CR image
Chondroblastoma geographic litic lesion in the epiphysis (greater trochanter)of the left hip Chondroblastoma is a rare benign cartilaginous neoplasm that characteristically arises in the epiphysis of a long bone in young patients. Chondroblastomas consist of chondroblasts, w … [view case]
By Rolando Reyna, Radiologist
09/24/2011.
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OSTEOCHONDROMA, DISTAL FEMUR

Case 798169
MSK › Benign Mass, Cyst
old
6 MR images
Osteochondroma, distal femur. Note that the medullary spaces of the femur and the lesion are continuous and the thin cartilagenous cap.
By John Hunter, Radiologist
09/24/2011.
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GIANT CELL TUMOR OF THE WRIST

Case 3132705
MSK › Benign Mass, Cyst
22 year old male
1 CR image
GIANT CELL TUMOR RX: litic lesion in the rigth wrist. Giant cell tumor of the bone is a relatively uncommon tumor. It is characterized by the presence of multinucleated giant cells. The tumor is usually regarded as benign. In most patients, giant cell tumors have an indolent c … [view case]
By Rolando Reyna, Radiologist
09/24/2011.
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ANEURYSMAL BONE CYST (ABC) OF THE LEFT HUMER…

Case 7749847
MSK › Benign Mass, Cyst
13 year old female
4 images (CR, Angio)
Aneurysmal Bone Cyst of the left humerus (confirmed by pathology).  The ABC was felt to possibly contain an intraosseous venous malformation (VM) due to the large communication between the cyst and the adjacent humeral veins.  This could also help account for the recurrent nature of the cyst. The ABC … [view case]
By patricia burrows, Radiologist
09/24/2011.
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OSTEOCHONDROMA SESSILE ON SONOGRAPHY

Case 26436269
MSK › Benign Mass, Cyst
old male
2 images (CR, US)
By Eduardo Just, Other Physician
09/24/2011.
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INCIDENTAL SMALL FIBROUS CORTICAL DEFECT ON …

Case 48796017
MSK › Benign Mass, Cyst
12 year old male
5 MR images
Incidental small fibrous cortical defect There is an incidental medial tibial fibrous cortical defect. Fig 1. Cortical lesion with a low intensity rim and slightly hyperintense centre Fig 2. Cortical lesion with a low intensity rim and slightly hyperintense centre Fig 3. Cortical … [view case]
By alex maclennan, Radiologist
09/24/2011.
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OSTEOID OSTEOMA

Case 131056
MSK › Benign Mass, Cyst
old
3 images (CT, NM)
Osteoid osteoma. CT scout radiograph of the left femur demonstrates a cortical expansion with a central lucency along the lateral aspect of the mid left femur. Axial images demonstrate this same cortical expansion with a central lucency containing an osseous nidus; there is no soft ti … [view case]
09/24/2011.
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NEUROFIBROMATOSIS TYPE I (PLEXIFORM NEUROFIB…

Case 4844743
MSK › Benign Mass, Cyst
old
5 MR images
By elvedin kulenovic, Radiologist
09/24/2011.
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OSTEOMA

Case 5433037
MSK › Benign Mass, Cyst
old
1 image
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OSTEOCHONDROMA CLAVICLE

Case 771386
MSK › Benign Mass, Cyst
old
14 images (CT, CR, 3D)
By Residents Kaiser, Resident
09/24/2011.
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ANEURYSMAL BONE CYST

Case 1045440
MSK › Benign Mass, Cyst
7 year old
4 images (CR, MR)
By david alexander, Resident
09/24/2011.
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FIBROMATOSIS

Case 45269
MSK › Benign Mass, Cyst
1 year old
2 CT images
Fibromatosis. Right posterior mass involving ribs with soft tissue component.
09/24/2011.
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OSTEOCHONDROMA

Case 67344
MSK › Benign Mass, Cyst
5 year old male
4 MR images
Femoral epiphyseal multiple osteochondromatosis Distal medial femoral epiphyseal cartilaginous mass on gradient echo sequence with internal matrix. Also note proximal tibial metaphyseal occult cartilaginous lesions.
09/24/2011.
1 comment
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LYTIC BONE LESION

Case 2794943
MSK › Benign Mass, Cyst
old
3 CT images
Eosinophilic Granuloma Solitary Lytic bone lesion in lateral mass of C1 Primary Differential considerations include EG, metastatic neuroblastoma, Ewings Sarcoma and osteomyelitis. Plain radiography remains the mainstay of diagnosis in patients with EG, although a specific diag … [view case]
09/24/2011.
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ANEURYSMAL BONE CYST

Case 1042608
MSK › Benign Mass, Cyst
old
13 images (CT, CR, MR)
By david alexander, Resident
09/24/2011.
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MASS IN THE RIGHT BUTTOCK

Case 1924727
MSK › Benign Mass, Cyst
42 year old female
5 images (CT, MR)
Peripheral nerve sheath tumor. There is a circumscribed soft tissue mass identified deep to the gluteus musculature. MRI shows well circumscribed soft tissue mass with homogenous signal on T2 and T1 with intense enhancement.
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SCAPULAR MASS

Case 863662
MSK › Benign Mass, Cyst
2 year 6 month old female
4 images (CT, MR, NM)
Langerhan's Cell Histiocytosis CT: lytic lesion in the right scapula with distinct borders and no periosteal reaction, the cortex posteriorly is thin/absent which indicates a more aggressive lesion MRI: T1 post contrast shows cortical destruction of the posterior cortex and enhancement … [view case]
09/24/2011.
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WRIST MASS WITHOUT PAIN 15 YEARS

Case 585476
MSK › Benign Mass, Cyst
old
6 MR images
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LEGG CALVE PERTHES DISEASE

Case 1828690
MSK › Neoplasm
6 year old male
1 image
Legg Calve Perthes Disease • small irregular right femoral capital epiphysis • mild lateral subluxation of femoral epiphysis • left hip appears normal 1. Perthes' Disease - 1) most common cause of flattening and irregularity of femoral head in children; 2) age range 5-8; 3 … [view case]
1 comment
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PAGET'S DISEASE LUMBAR SPINE

Case 83277
MSK › Neoplasm
70 year old male
6 MR images
By Eric Lee, Radiologist
09/24/2011.
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ANEURYSMAL BONE CYST

Case 42065
MSK › Neoplasm
12 year old female
6 CT images
By tara bowman, Resident
09/24/2011.
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MELANOMA METASTASIS

Case 178750
MSK › Neoplasm
40 year old male
3 MR images
high T1, T2, enhancing mass in the adductor magnus muscle
By Kristina Kjeldsberg, Radiologist
09/24/2011.
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LUNG CANCER WITH SKELETAL METS

Case 643929
MSK › Neoplasm
87 year old male
3 CR images
Pending biopsy. LUL Mass, Subtle lucent defect in the proximal left humerus, periosteal bone formation around the length of the R tibia, two lucent defects present in the proximal tibia Multiple lytic Lesion … [view case]
By J P, Radiologist
09/24/2011.
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PAGET'S DISEASE LUMBAR SPINE

Case 771798
MSK › Neoplasm
70 year old male
6 MR images
By Residents Kaiser, Resident
09/24/2011.
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MULTIPLE MYELOMA

Case 23477544
MSK › Neoplasm
75 year old
1 image (CT, CR)
MM Multiple lytic lesions.
By Janet Neutze, Radiologist
09/24/2011.
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SUBTLE BREAST CANCER BONY METASTASES ON 84 Y…

Case 47902833
MSK › Neoplasm
84 year old female
3 images (CT, NM)
Subtle bony metastases on CT well seen on Bone Scan Fig 1 Bone scan shows increased tracer uptake in left side of sternum and anterior end of left second rib Fig 2 CT shows subtle sclerosis in anterior end of left second rib Fig 3 CT shows subtle sclerosis in left sternum M … [view case]
By alex maclennan, Radiologist
09/24/2011.
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METASTATIC BREAST CANCER TO AXILLA AND BONE …

Case 48208343
MSK › Neoplasm
63 year old female
10 CT images
Metastatic breast cancer to axilla and bone Fig 1, Fig 2, Fig 3 Tumour mass/ adenopathy in left axilla. Fig 4 Tumour nodules in subcutaneous fat of left chest wall Fig 3 Rib metastasis with extrapleural soft tissue mass Fig 5, Fig 6, Fig 7, Fig 8, Fig 9 Mixed lytic and sclerotic bone metastases in vertebrae
By alex maclennan, Radiologist
09/24/2011.
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BONE METASTASES FROM BREAST CANCER IN 62 Y/O…

Case 11511981
MSK › Neoplasm
62 year old female
10 CT images
Bone metastases from breast cancer. 1. Left Mastectomy. 2. Radiotherapy scarring in left apex 3. Subtle areas of sclerosis and lucency in right glenoid neck, vertebral bodies, iliac blades and left ischium due to metastases.
By alex maclennan, Radiologist
09/24/2011.
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OSTEOID OSTEOMA

Case 308362
MSK › Neoplasm
25 year old male
7 images (CR, MR)
By James Smith, Radiologist
09/24/2011.
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PLASMACYTOMA

Case 48260117
MSK › Neoplasm
58 year old male
5 images (CT, CR)
Plasmacytoma Expansile mixed sclerotic and lytic lesion in the anterior third rib on osseous survey.  No associated soft tissue mass; cortical thinning and breakthrough on CT Plasmacytoma  discrete, solitary mass of neoplastic monoclonal plasma cells in either bone or s … [view case]
By Nick Ludwig, Resident
09/24/2011.
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HEMANGIOMA OF THE SKULL

Case 793543
MSK › Neoplasm
old
6 images (CT, Path)
Gorham's Disease? Expansile lytic lesion involving the left calvarium. Biopsy showed Hemangioma. Differential includes mets, hemangioma, Non ossfying fibroma, Aneurysmal bone cyst, Eosinophilic Granuloma.
By J P, Radiologist
09/24/2011.
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OSTEOID OSTEOMA

Case 92020
MSK › Neoplasm
13 year old male
6 images (CT, CR, MR)
Osteoid osteoma Small lucent lesion in posteromedial proximal femur with adjacent sclerosis. scheduled for ablation
By Dennis Bruce, Radiologist
09/24/2011.
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METASTATIC BONE LESIONS

Case 632468
MSK › Neoplasm
69 year old male
4 CR images
Patient known to have Renal Cell Carcinoma. Now with mets. Permeative lesion in femoral diaphysis with coritical thinning. Lesion also seen in teh R inf and superior pubic ramus.
By J P, Radiologist
09/24/2011.
1 comment
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PROSTATIC CARCINOMA METASTASES ON 80 Y/O XR …

Case 11244913
MSK › Neoplasm
80 year old male
1 CR image
Prostatic carcinoma metastases. 1. Subtle areas of sclerosis in the neck and proximal shaft of the right femur 2. Artifact from plastic buttons on clothing over right pubic rami
By alex maclennan, Radiologist
09/24/2011.
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MYELOMA ON 77 Y/O CXR

Case 3398285
MSK › Neoplasm
77 year old male
2 CR images
Myeloma 1. Widespread tiny lucencies in all bones 2. No other positive findings Field changes involving all bones can be very difficult to spot.
By alex maclennan, Radiologist
09/24/2011.
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METASTATIC BONE DISEASE IN NEUROBLASTOMA

Case 853084
MSK › Neoplasm
old
1 CR image
Neuroblastoma bone metastasis Most common solid abdominal mass of infancy -2nd most common tumor in childhood (Wilms more common in older children) -Peak age 2 years, 25% 1st year, 50% by 2 y.o., 79% by 4 y.o., 97% less than 10 y.o. -Increased catecholamine production in 75-90 … [view case]
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BONE METASTASES FROM BREAST CARCINOMA

Case 4140587
MSK › Neoplasm
36 year old female
7 images (CT, CR, NM)
Bone metastases from breast carcinoma
By Flamur Mushica, Resident
09/24/2011.
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MULTIPLE MYELOMA

Case 1828734
MSK › Neoplasm
55 year old female
1 image
multiple myeloma - Generalized osteoporosis - Multiple vertebral compression fractures, ? paraspinal soft tissue mass upper T-spine - Multiple punched out lytic lesions in visualized skeleton - mild pulmonary interstitial changes MULTIPLE MYELOMA - most common primary ma … [view case]
1 comment
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