Angiolipoma

Angiolipoma is a subcutaneous benign tumor, made up of mature fat and blood vessels that often presents as multiple lesions.  It sometimes arises intramuscularly. The incidence may be associated with familial heritage, close to 5% of the cases.  Angiolipomas often...

Periosteal Chondroma

General Information Benign neoplasm Composed of mature hyaline cartilage Arises from surface of bone from inner layer of periosteum Erodes the outer table of the cortex Does not grossly extend into medullary cavity Also known as juxtacortical chondroma More cellular...

High Grade Surface Osteosarcoma

General Information High grade surface osteosarcoma is a type of high grade osteosarcoma that develops on the surface of the bone from the outer cortex. There is none to minimal medullary involvement The microscopic pathology is the same as a conventional osteosarcoma...