Chondroblastoma of sella and anterior cranial fossa base

Synchronous chondroblastomas in the knee joint: A case report

“…This is because Korosh et al have reported a case of pathologically proven multiple soft tissue metastases of CB, suggesting that the main sites of metastasis are the lungs and soft tissues and that metastasis of CB in the bones is an extremely rare event [4] . As the origin of CB was determined to be the primitive cartilage cell [11] , a CB may be generated as “seeds” before the generation of two continuous bones and division into different bones, which can be comparable to the famous theory “plate tectonic theory” in geology [12] .…”

Chondroblastoma- a rare sinonasal tumor: case report and review of literature

“…The latter occurs more commonly in the tumors located in the skull and facial bones. 5 Matrix formation must be seen to confirm a diagnosis of chondroblastoma. Bluish or purple granular calcium deposits are seen in approximately one-third of cases, most commonly in long bone tumors.…”

Chondroblastoma in the Sphenoid Sinus

“…3 Only 3 cases have been reported in the sphenoid sinus. 4-6 The differential diagnosis includes chondromyxoid fibroma, giant cell tumor, chondrosarcoma, eosinophilic granuloma, and noninvasive fungal sinusitis. 3 Chondroblastoma originated in paranasal sinus is hardly detected in the early stage for the lack of positive clinical presentations.…”