Only two prior cases of chondroma
of the urinary bladder wall have been reported.
The closest differential diagnosis on imaging for a convexity or falx chondroma
These include Hoffa's disease, IFP ossification, solitary intra-articular chondroma
, acquired intra-articular osteochondroma, intracapsular chondroma
, para-articular chondroma
/osteochondroma and capsular osteoma.
of the rib possibly associated with hemothorax: a case report.
Radiographically, the differential diagnosis of osteomas includes other benign bone-forming lesions such as osteoid osteoma, benign osteoblastoma, ossifying fibroma, fibrous dysplasia, osteochondroma, chondroma
, calcified meningioma, isolated eosinophilic granuloma, giant cell tumour, and malignant lesions such as osteosarcoma and osteoblastic metastasis.
The clinical differential diagnosis for pilomatricoma in children includes epidermal inclusion cyst, ossifying hematoma, branchial remnant, preauricular sinus, lymphadenopathy, giant cell tumor, chondroma
, dermoid cyst, degenerating fibroxanthoma, foreign body reaction, and osteoma cutis .
Arthroscopic resection of an extrasynovial ossifying chondroma
of the infrapatellar fat pad: end-stage Hoffa's disease?
Initial differentials included plasmacytoma and chondroma
5) Cartilaginous lesions of all types (chondroblastoma, enchondroma, periosteal chondroma
, chondrosarcoma) have a predilection for the proximal humerus; marrow cell lesions and metastatic carcinoma are the common malignant lesions.
The common benign tumours are chondroma
, fibrous dysplasia, lipoma, aneurysmal bone cyst.
Pathology confirmed that it was a benign chondroma
Others benign tumours were chondroma
, osteochondroma, osteoma and chondromyxoid fibroma.
The triad includes benign pulmonary chondroma
(commonly calcified), gastrointestinal stromal tumor, and extra-adrenal paraganglioma.
Primary differential diagnoses were neoplasia (eg, osteoma, osteosarcoma, giant cell tumor, fibroma, fibrosarcoma, hemangioma, hemangiosarcoma, chondroma
, chondrosarcoma), (1,2) inflammation (eg, osteomyelitis, granuloma, xanthoma), or a bone cyst.
To our knowledge, this is the first description of a soft tissue chondroma
at this site: some soft tissue tumors develop at unusual anatomic location.