This pathology can be seen with a Vimentin stain.
Synovial sarcoma (also epithelial membrane stain)
Skip lesions are associated with this pathology.
Chondrosarcoma
Adamantinoma is associated with this chromosomal abnormality.
Trisomy 7/8/12
When evaluating osteosarcoma, patient's response to this treatment is a strongly positive prognostic finding.
90% necrosis after chemo
These 3 tumors are known to metastasize to the lungs, requiring chest XR evaluation.
Chondroblastoma
Giant cell tumor
Osteoblastoma
This pathology is seen with the S-100 stain.
Chondroblastoma
A bone fracture fragment at the bottom of a cystic lesion is called what and seen in what type of tumor? (Two parts)
Fallen leaf sign, UBC
The EXT gene associated with MHE causes a decreased production of this.
Heparin sulfate
This benign, radiolucent tumor is found in the epiphysis of long bones
Chondroblastoma

This imaging finding is pathognomonic for this disease. (two parts)
Shepards crooks, Polyostotic fibrous dysplasia
This tumor is found in the anterior portion of the spine
LCH
This primary (non-metastatic) tumor can be treated with Denosumab?
GCT
What # tumors are found in the proximal femur?
Chondrosarcoma (clear cell)
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