is classified into two types, i.e., either sessile or pedunculated and usually occurs within the metaphysis typically projecting away from epiphysis. Osteochondromas
usually locate around the knee (50%) in which distal femur is the most common site.
Table 2 Common Locations of Pediatric Bone Lesions Epiphyseal Lesions Metaphyseal Lesions Diaphyseal Lesions Chondroblastoma Enchondroma Osteoid Osteoma Aneurysmal Bone Cyst Aneurysmal Bone Cyst Eosinophilic Granuloma Osteomyelitis Fibrous Dysplasia Osteofbrous Dysplasia Giant Cell Tumor of Bone Osteochondroma
Ewing's Sarcoma (older) Unicameral Bone Cyst Nonossifying Fibromas Osteomyelitis Osteosarcoma Please Note: Illustration(s) are not available due to copyright restrictions.
An 18-year-old man with a past medical history significant for an osteochondroma
of the right forearm presented with a three-month history of a slowly enlarging right testicle.
(OC) is the most common benign bone tumor, of which the detailed development process is still debatable.
Here we present the case of a 14-year-old old boy with an osteochondroma
, which was incidentally diagnosed and was invaginating into the capsule of the liver but not causing any symptom.
Moreover, FeLV has oncogenic potential and causes various tumors in cats, such as lymphoma, leukemia, osteochondroma
and olfactory neuroblastoma (HARTMANN, 2006).
Snapping scapula is a condition first described by Boinet in 1867.5 Milch et al.6, had defined two distinct forms of scapulothorcic crepitus related to snapping scapula, the osseous form which is related to an bony pathology of the superomedial angle of the scapula such as an osteochondroma
and the soft tissue form which is associated to inflammation of the bursa present around the superomedial angle of the scapula.
Six of the patients had osteochondroma
of the fibular head.
Age, years (median (25; 75 quartile)) 11 (5.7; 13) Male/female, n/n 14/7 Body weight, kg (median (25; 75 quartile)) 34 (18; 45) Femur fracture, n 4 Femur and tibia fracture, n 1 Tibia fracture, n 4 Tibia and fibula fracture, n 7 Femoral exostosis, n 2 Tibial exostosis, n 1 Tibial osteochondroma
, n 1 Knee foreign body, n 1 Table 2: Main study results.
The list of procedures includes 2 appendectomies, 1 Nissen fundoplication and 1 cholecystectomy done for complaints of chronic abdominal pain, 2 foot surgeries for pain thought to be related to feet deformities, and 1 resection of a small leg osteochondroma
for chronic leg pain.
All readers completed training covering the following differential diagnoses: osteoarthritis, fractures/traumatic injuries, osteomyelitis, benign bone disease (Paget's, fibrous dysplasia, osteoid osteoma, osteochondroma
, and osteoma of the skull base and sinuses), normal variants (sternal angle, peridental uptake, and frontal hyperostosis), artifacts (interstitial injection, intravascular retention, urinary contamination, and attenuation by metal devices), pitfalls (bone superscan, osteomalacia, and paraneoplastic hypertrophic osteoarthropathy), and uptake in the soft tissues (myositis ossificans, heterotopic calcifications, subcutaneous injection, and retention in the urinary tract).
Such lesions were described in early reports as osteochondroma
, osteochondrosarcoma, and malignant mesenchymoma until the term mesenchymal hamartoma was proposed in 1979 by McLeod and Dahlin .