Related Experiment Video
Updated: Feb 5, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Expansile radiolucent lesion of the Temporomandibular Joint-A diagnostic enigma
Vikas Meshram1, Natarajan C1, Jayant Landge1
1Department of Maxillofacial and Oral Surgery, Government Dental College and Hospital, St. George Hospital Campus, Near Chhatrapati Shivaji Terminus Area, Fort, Mumbai, Maharashtra 400001, India.
Abstract:
Radiolucent lesions of Temporomandibular Joint (TMJ) represent a diagnostic challenge and a treatment conundrum. Biopsy of the lesions is technically difficult owing to their complex anatomy. The Differential Diagnosis (DD) includes a wide array of lesions including Simple Bone Cyst, Ameloblastoma, Central Giant Cell Granuloma, Hemangioma, Osteoblastoma, Osteochondroma, Chondroblastoma, Chondrosarcoma, Neurofibroma and metastatic malignant lesions though none has a specific predilection for TMJ. Here we present a case report of a large expansile radiolucent lesion of right TMJ in a 22 year old male patient with difficulties involved in diagnosis and management. Though cystic lesion of TMJ is uncommon it is incumbent on the Maxillofacial Surgeon for an early diagnosis and prompt management.
Related Concept Videos
Structural Joints: Synovial Joints
Structural Joints: Fibrous Joints
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
Structural Joints: Cartilaginous Joints
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...
Joints
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
Method of Joints
Since plane truss members are in the same plane, each joint is subjected to a coplanar and concurrent force system. To apply the method of joints, the first step is to...
Introduction to Joints

