A 62-year-old man comes to the clinic for evaluation of a change in his voice that has persisted for eight weeks. He describes his voice as sounding raspy and strained. He denies any recent cough, fever, sore throat, or runny nose. He notes a five-pound weight loss over the last two months. His past medical history is significant for hypertension and chronic obstructive pulmonary disease. He has a 45-pack-year smoking history and drinks three to four alcoholic beverages every evening. His temperature is 37.1 C (98.6°F), blood pressure is 136/88 mmHg, pulse is 82/min, and respirations are 16/min. On physical examination, his voice is noticeably coarse. There are no palpable masses or lymphadenopathy in the neck. The thyroid gland is normal in size and contour. Oropharyngeal examination is unremarkable.
Which of the following is the most appropriate next step in the management of this patient?
The correct answer is:
B) Laryngoscopy
Any patient with hoarseness persisting for more than three to four weeks should undergo an evaluation to visualize the larynx. This is especially critical in patients with significant risk factors for malignancy, such as older age, a heavy smoking history, and alcohol use. Laryngoscopy, whether performed directly or indirectly via a flexible fiberoptic scope, is the gold standard for the initial evaluation of persistent hoarseness. It allows the clinician to assess vocal cord mobility and identify mucosal lesions, such as laryngeal squamous cell carcinoma, which often presents as an irregular or exophytic mass on the true vocal cords.
Answer choice A: Computed tomography of the neck, is incorrect. While computed tomography is a vital tool for staging a suspected malignancy or evaluating for deep neck space infections, it is not the preferred initial step for a patient with isolated hoarseness. Direct visualization of the laryngeal mucosa is required first to identify a primary lesion.
Answer choice C: Referral for speech therapy, is incorrect. Speech therapy is an effective treatment for functional voice disorders, such as muscle tension dysphonia or vocal nodules. However, in a patient with a high risk for malignancy and persistent symptoms, a structural and neoplastic cause must be ruled out before starting conservative therapy.
Answer choice D: Thyroid ultrasound, is incorrect. Although a large thyroid mass or an invasive thyroid malignancy can cause hoarseness by compressing or invading the recurrent laryngeal nerve, this patient has a normal thyroid exam. In a heavy smoker with persistent hoarseness, the most likely site of primary disease is the larynx itself, making laryngoscopy the more appropriate diagnostic step.
Answer choice E: Voice rest and reassessment in four weeks, is incorrect. Observation and voice rest are appropriate for acute hoarseness, which is usually caused by viral laryngitis or vocal strain and typically resolves within one to two weeks. Since this patient has already had symptoms for eight weeks and has red flags such as weight loss and a heavy smoking history, further delay in diagnosis is inappropriate.
Key Learning Point
Persistent hoarseness lasting more than four weeks requires visualization of the larynx via laryngoscopy to rule out malignancy, particularly in patients with a history of tobacco and alcohol use.
