Malignant tumors of the jaw

what is osteosarcoma

primary malignancy of bone that STARTS in the jaw

carcinomas spread through what

through the lympmhatics

sarcomas spread through what

bloodstream

what is a sign of malignancy

codman's triangle

what are the signs that establish that osteosarcoma is a malignant bone tumor

malignant osteoblasts making osteoid

how does osteosarcoma appear radiographically

RL or RP and sunburst and codmans triangle

what are the features that suggest a malignant cartilaginous tummor (chondrosarcoma)

matrix material that looks like cartilage and 2 cells in lacunae

how does chondrosarcoma appear radiographically

in between a RL and RP lesion without defined borders

most common location for chondrosarcoma

maxillary midline

burkitts lymphoma is associated with what virus

EBV

histology of burkitts lymphoma (she said she could give us this photo on exam)

malignant lymphocytes --> "starry sky"

where is multiple myeloma found

mostly bone tumor but can be anywhere

what does multiple myeloma look like radiographically

punched out RL

prominent cell type seen in multiple myeloma

plasma cell

what lab study would be valuable to help confirm the diagnosis

serum alkaline phosphotase

what medication is used to prevent pathologic fracture in these patients with multiple myeloma

bisphosphonates

what is the most common malignant tumor of bone in oral cavity

metastatic carcinoma (spreads to a distant site)

T/F: can a malignant tumor that has metastasized to the jaw can show up as RL or RP (test question)

T: can be radiolucent or radiopaque

most likely sites of primary tumors of metastatic carcinoma

lung

breast

prostate

colon

what is the prognosis (outcome) for metastatic carcinoms

poor