Vázquez Mahía Inés, López-Cedrún Cembranos José Luis, Ferreras Granado José, Lorenzo Franco Fernanda
Dra. Inés Vázquez Mahía Servicio de Cirugía Oral y Maxilofacial, CHU Juan Canalejo, A Coruna, Spain.
Med Oral Patol Oral Cir Bucal. 2007 Mar 1;12(2):E171-4.
Chondromas are benign tumours composed of mature hyaline cartilage. We present here the first case in the English language medical literature of juxtaarticular chondroma of the temporomandibular joint in the parotid region. Within the rarity of cartilage disorders of the temporo-mandibular joint (TMJ), this particular condition is a diagnostic curiosity. The patient, a 54 year old woman, presented a right preauricular tumour of 3.5 cm. which had been developing for 4 years. It was not painful but there was a recent symptomology of TMJ dysfunction, with pain and clicks. The diagnostic possibilities of a parotid pleomorphic adenoma and of a cartilage tumour of the TMJ suggested a difficult preoperative differential diagnosis, which influenced our approach regarding therapy. The tumour was excised, preserving the parotid gland. This enabled us to confirm the histological diagnosis of chondroma, composed solely of chondroide tissue. We have described the clinical characteristics of our case, and carried out a review of the relevant literature, emphasising the differential diagnoses.
软骨瘤是由成熟透明软骨构成的良性肿瘤。我们在此呈现英文医学文献中首例发生于腮腺区颞下颌关节旁关节软骨瘤的病例。在颞下颌关节（TMJ）软骨疾病罕见的情况下，这种特殊病症在诊断方面颇具特殊性。患者为一名54岁女性，右侧耳前有一个3.5厘米的肿瘤，已生长4年。该肿瘤无疼痛，但近期出现颞下颌关节功能障碍的症状，伴有疼痛和弹响。腮腺多形性腺瘤和颞下颌关节软骨肿瘤的诊断可能性提示术前鉴别诊断困难，这影响了我们的治疗方法。肿瘤被切除，同时保留了腮腺。这使我们能够确诊为仅由软骨样组织构成的软骨瘤。我们描述了该病例的临床特征，并对相关文献进行了综述，着重强调了鉴别诊断。
