Spontaneous resolution of solitary osteochondroma
in the young adult.
Most Common Benign Tumors Encountered Osteochondroma
," WHO Classification of Tumours of Soft Tissue and Bone, C.
Here we present the case of a patient who was diagnosed with osteochondroma
of the rib while investigating abdominal pain.
Six patients had osteochondroma
of the fibular head causing fibular nerve compression.
 Other benign tumours were chondroblastoma, enchondroma, osteoma and osteochondroma
. Krishnappa et al.
Chest wall TB needs to be differentiated from benign and malignant tumors [chondroma, osteochondroma
, fibrous dysplasia, lipoid granuloma, chondrosarcoma, myeloma multiplex] (11), metastatic carcinoma, lymphoma or other kinds of infection (15,16).
The differential diagnosis of PC includes basal cell carcinoma, squamous cell carcinoma, epidermoid cyst, foreign-body granuloma, multiple osteomas of the skin, osteochondroma
, parotid tumor, proliferating trichilemmal cyst, and other entities.
Age 0-20 years 20-50 years >50 year Osteoblastoma Non-Hodgkin's Paget's Disease Lymphoma * Osteoid Osteoma * Osteosarcoma Lymphoma Fibrous dysplasia Giant Cell Tumor * metastatic carcinoma Hodgkins Lymphoma Aneurysmal Bone Cyst Multiple Myeloma Osteochondroma
* Chondroblastoma Chondrosarcoma Ewing sarcoma Spindle cell sarcoma (eg Fibrosarcoma) * Osteosarcoma Osteomyelitis Aneurysmal Bone Cyst Chondroblastoma
A high level of suspicion is important in patients having a family history of bone tumors and osteochondroma
visible in plain x-rays.
Interestingly, several human genetic disorders, familial cancer syndromes such as Li- Fraumeni syndrome, history of trauma, Paget's disease of bone, fibrous dysplasia, osteoblas- toma, osteochondroma
, radiation exposure and recently the high-fluoride level in drinking water are all linked to an increase risk of development of osteosarcoma.
In the Chinese JST database, the most common histologic type of bone tumor was conventional osteosarcoma, accounting for 22.8% of all bone tumors (2097 of 9200), followed by giant cell tumor (16.7%; 1536 of 9200), osteochondroma
(9.1%; 837 of 9200), primary chondrosarcoma (5.6%; 517 of 9200), simple bone cyst (4.9%; 446 of 9200), fibrous dysplasia (4.2%; 383 of 9200), chondroblastoma (3.1%; 283 of 9200), osteoid osteoma (2.6%; 243 of 9200), malignant fibrous histiocytoma (2.2%; 201 of 9200), plasma cell myeloma (2.1%, 192 of 9200), enchondroma (2.0%, 188 of 9200), Ewing sarcoma (1.9%; 173 of 9200), chordoma (1.8%; 165 of 9200), and others (21.1%; 1939 of 9200).