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Related Concept Videos

Compact Bone01:27

Compact Bone

Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into...
Bone Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...

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Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection
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Giant mandibular condyle osteoma.

Luis Eduardo Almeida1, Marco Antonio de Oliveira Filho

  • 1Hospital Universitário Evangélico de Curitiba, Curitiba, Paraná, Brazil. lealmeida2@yahoo.com

The Journal of Craniofacial Surgery
|May 19, 2011
PubMed
Summary

Peripheral osteomas (POs) are rare benign bone tumors. This case report details the surgical resection of a maxillofacial peripheral osteoma using a hemicoronal approach, contributing to understanding these uncommon lesions.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Oncology
  • Pathology

Background:

  • Osteomas are benign tumors of mature bone, predominantly affecting craniofacial bones.
  • Peripheral osteomas (POs) present as external masses on bone surfaces, distinct from central osteomas within the medullary space.
  • Cases of peripheral osteomas are infrequently reported in the literature.

Observation:

  • This article presents a rare case of a peripheral osteoma located in the maxillofacial region.
  • The osteoma presented as a sessile mass on the bone surface.
  • The lesion was surgically excised for diagnosis and treatment.

Findings:

  • The resected lesion was confirmed to be a peripheral osteoma.
  • The hemicoronal surgical approach was utilized for resection.
  • Histopathological examination confirmed the benign nature of the tumor.

Implications:

  • This case adds to the limited body of knowledge on peripheral osteomas of the jaws.
  • Surgical resection is a viable treatment option for symptomatic or aesthetically concerning peripheral osteomas.
  • Understanding the presentation and management of POs is crucial for oral and maxillofacial surgeons.