Benign Tumors definitions

Osteoblastoma

0F: Basically a larger OO

Osteofibrous Dysplasia.

0F: It is considered a fibrovascular defect.

Osteoid osteoma

0F: Osteoid osteoma is a benign bone tumor that arises from osteoblasts

Enchonderoma

CF: Benign slow-growing tumor of cartilaginous cells at the ends of tubular bones (especially in the hands and feet). Growing bones (hemartomatous process)

Osteochondroma

CF: a benign tumor containing both bone and cartilage and usually occurring near the end of a long bone.

Chondromyxoid fibroma

CF: grows out of the cartilage-forming tissue found in the marrow of bones

Periosteal Chondroma

CF: is a benign cartilage tumor that occurs on the surface of the bones, under the periosteum.

Chondroblastoma

CF: is a rare type of benign cartilage forming tumor that usually develops at the ends of long bones, such as the thighbone and upper arm bone.

Epidermoid cyst

CT: An epidermoid cyst is a benign cyst usually found on the skin. The cyst develops out of ectodermal tissue.

Simple bone cyst

CT: is a common, benign, fluid-containing lesion, most commonly found in the metaphysis of long bones, typically the proximal humerus or femur.

Aneurysmal Bone Cyst

CT: is an osteolytic bone neoplasm characterized by several sponge-like blood or serum filled, generally non-endothelialized spaces of various diameters

Fibrous dysplasia.

FB: a chronic condition of the skeleton where a portion of a bone develops abnormally, at birth.

Fibrous cortical defect FCD (<2cm)

FB: a common small defect of a bone, in which the cortex is filled with fibrous tissue, occurring most frequently in the lower femoral shaft of a child. Also called nonosteogenic fibroma.

Giant cell tumours

It is characterized by the presence of multinucleated giant cells (osteoclast-like cells).

Non-ossifying fibroma NOF (>2cm)

Larger form of the FDC

Hemangioma

a benign tumour of blood vessels, often forming a red birthmark