Nasopharyngeal carcinoma masquerading as temporomandibular disorder

Trismus, commonly associated with temporomandibular disorders (TMD), trauma, or infection, can occasionally manifest as a rare symptom of malignancy. The author present a case of misdiagnosed carcinoma initially presenting with features resembling TMD. A 72-year-old presented with left facial pain, earache, and progressive difficulty in mouth opening. Initial assessments suggested TMD, but further investigation revealed a nasopharyngeal mass indicating squamous cell carcinoma. This case underscores the need for a comprehensive approach in evaluating trismus to rule out malignancy. Early recognition and appropriate referral for further investigation, including imaging and biopsy, are essential for timely diagnosis and management of malignancy masquerading as TMD.