Osteoma (benign neoplasm of bone)
OSTEOMA (BENIGN NEOPLASM OF BONE)
OSTEOMA (BENIGN NEOPLASM OF BONE) DEFINITION
Osteoma are benign neoplasm of osseous (bone) tissue, which are consisting of either mature compact bone or cancellous bone.
OSTEOMA (BENIGN NEOPLASM OF BONE) CLINICAL FEATURE:
Age: Second to fifth decade of life
Sex: More frequent among females
Site: Osteoma can occur either peripherally or centrally in relation to any bone of the cranium or of the face or from within the sinus cavities.
Some lesions may arise from the soft tissues,
E.g.: Tongue or Buccal mucosa, etc.
Jawbone are often affected
- Osteoma often produces a nodular, exophytic, bony hard growth in the jawbones. (It can grow both endosteally and periosteally).
- The lesion can either solitary or multiple and the overlying skin or epithelium appears normal.
- Osteoma sometimes cause expansion of the cortical palates of bone with displacement of regional teeth.
- Osteomas of the maxillary antrum may predispose to sinusitis, which produces pain in the maxillary molar area with nasal discharge
OSTEOMA (BENIGN NEOPLASM OF BONE) RADIOGRAPHIC FEATURES:
Osteoma radiographically presents well circumscribed, solitary or multiple, round or oval, dense radiopacities in the bone.
OSTEOMA (BENIGN NEOPLASM OF BONE) HISTOPATHOLOGY:
- The lesion is composed of dense cortical bone with a distinct lamellar pattern.
- The cortical bone is sclerotic and relatively avascular.
- The medullary bone is denser than the normal bone with reduced marrow spaces.
- The marrow spaces are composed of areolar fibrous tissue or adipose tissue
OSTEOMA (BENIGN NEOPLASM OF BONE) DIFFERENTIAL DIAGNOSIS:
- Sclerotic cemental masses
- Focal sclerosing osteomyelitis
OSTEOMA (BENIGN NEOPLASM OF BONE) TREATMENT:
Surgical excision. Antral lesions are removed by Caldwell-Luc approach.