Читать книгу Temporomandibular Disorders - Robin J. M. Gray - Страница 51

Tumours are rare, but ostoesarcoma and chondrosarcoma do present. Metastatic carcinoma is the most frequently occurring malignancy; however, the jaws are an uncommon site for metastasis, especially the mandibular condyle. When considering benign tumours, osteochondroma is the most common, but this is still very rare (Figure 2.18).

Figure 2.18 (a, b) Radiological (mass anterior to left condyle) and occlusal changes (anterior open bite and midline deviation to the right) in a patient with osteochondroma in the left temporomandibular joint. (c) The tumour surgically removed.

(M. Ziad Al‐Ani, Robin J.M. Gray.)

Features that may suggest the possibility of a tumour in the TMJ include pain, swelling, paraesthesia, trismus, and occlusal changes. There may rarely be auditory changes secondary to eighth nerve involvement.

Use of radiographs and other imaging studies is of diagnostic importance and surgery is the treatment. The pathology depends on the diagnosis of the tumour.