The ameloblastoma is a benign but aggressive neoplasm of odontogenic origin. However, no enamel or hard tissue is formed by the tumor cells. Ameloblastomas are infamous for their invasive growth and their tendency to recur. Robinson (1937) as a benign tumor that is 'usually unicentric, nonfunctional, intermittent in growth, anatomically benign and clinically persistent.' They may occur at any a...

INTRODUCTION Ankylosis may be defined as the fusion of the articular surfaces with bony or fibrous tissue. The treatment of temporomandibular joint ankylosis poses a significant challenge because of the high incidence of recurrence. PURPOSE To report 15 cases treated by either gap arthroplasty, or the articular reconstruction technique using costochondral grafts, coronoid process grafts or al...

Reconstruction of the temporomandibular joint (TMJ) for congenital or acquired deformities is a major challenge for maxillofacial surgeons. The alternatives for reconstructing the TMJ include free grafts (costochondral, iliac crest, clavicle, or metatarsus), free flaps (fibula), osteogenic distraction, and alloplastic grafts. The lack of biological knowledge of cartilaginous grafts and their re...

Chondrosarcoma of the chest wall is a rare primary neoplasm found to occur in elderly men. Patients present with an enlarging, painful, anterior chest wall mass arising from either the vicinity of the costochondral junction or the sternum. Treatment includes wide resection with appropriate chest wall reconstruction. We report an unusual presentation of this uncommon tumor occurring as a huge ch...

ment of the costochondral junctions and thickening of the wrists and ankles. X-ray shows cupping and widening of the distal ends of long bones. The serum alkaline phosphatase is raised and both calcium and phosphorus are diminished (Back & Cole, 1958; Palmer & Thomas, 1958). Cretinism in which there is stunted growth, delay in closure of the fontanelle, large tongue and umbilical hernia. The se...

body skeletal scintigraphy performed with 20 mCi (740 Mega Becquerel) of Technetium-99m Methylene DiphosPhonate (MDP) revealed diffusely increased tracer uptake over body of sternum and manubriosternal junction suggestive of neoplastic process. A focal area of benign uptake was also seen over left 2nd costochondral junction (Fig. 3). Contrast enhanced CT study revealed mixed sclerotic and lytic...

Expanded costochondral cells provide a clinically relevant cell source for engineering both fibrous and hyaline articular cartilage. Expanding chondrocytes in a monolayer results in a shift toward a proliferative, fibroblastic phenotype. Three-dimensional aggregate culture may, however, be used to recover chondrogenic matrix production. This study sought to engineer a spectrum of fibrous to hya...