“…Though clinical symptoms of condylar metastasis vary, depending on the severity of metastatic involvement and properties of the primary cancer, the common symptoms in approximately half of these cases include click, crepitation, deviation during opening, limited opening and lateral movement, tenderness to palpation, and pain in function [5], which are similar to those seen in temporomandibular disorders (TMD) [6]. Considering that radiographic changes may be minimal or absent in early stages of the disease [5] and TMD-mimicking symptoms may be the first sign of a malignant tumor [1,7], it is sometimes difficult to differentiate clinically between TMD and metastatic involvement of the condyle. Moreover, many patients with condylar metastasis are misdiagnosed and receive improper treatment, resulting in effective treatment delay.…”