childhood parosteal osteosarcoma
A low grade malignant bone-forming mesenchymal neoplasm arising from the surface of the bone. It occurs in childhood and usually affects the distal posterior femur, the proximal tibia, and proximal humerus. Painless swelling is the usual clinical sign. The prognosis is usually excellent.
MONDO:0002623
pediatric osteosarcoma
is_a
MONDO:0006817
juxtacortical osteosarcoma
is_a
childhood parosteal osteogenic sarcoma
exact
childhood parosteal osteosarcoma
exact