A 65 year old male comes with hoarseness of voice since 3 months. What will be your probable diagnosis and how will you investigate and treat this patient?
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laryngeal carcinoma hoarseness diagnosis treatment
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Probable Diagnosis
In a 65-year-old male with 3 months of hoarseness, the most probable diagnosis is carcinoma of the larynx - most likely glottic squamous cell carcinoma (SCC). Hoarseness/dysphonia is the most common presenting symptom of laryngeal cancer, and glottic tumors cause it early even when small, because the true vocal fold is directly involved. Other possibilities must be considered in the differential.
Differential Diagnosis
Most Likely:
- Carcinoma of the larynx (glottic SCC - accounts for ~59% of laryngeal cancers, M:F ratio 4:1, peak in 6th-7th decade)
Other Laryngeal Causes:
| Benign/Premalignant | Malignant |
|---|---|
| Vocal fold polyp/nodule | Verrucous carcinoma |
| Vocal cord paralysis (recurrent laryngeal nerve palsy) | Supraglottic SCC |
| Laryngeal papillomatosis | Neuroendocrine tumors |
| Keratosis / dysplasia / carcinoma in situ | Chondrosarcoma |
| Laryngocele | Lymphoma |
| TB, fungal (Candida), Wegener granulomatosis | Metastatic disease |
| Reinke's edema | |
| Vocal process granuloma |
Extra-laryngeal causes of hoarseness:
- Recurrent laryngeal nerve palsy from lung apex (Pancoast), mediastinal, or thyroid malignancy
- Hypothyroidism
- Gastroesophageal reflux laryngitis
- Functional dysphonia
Given the 3-month duration in an elderly male (typically a smoker/alcoholic), malignancy must be excluded first.
Risk Factors to Elicit in History
- Tobacco smoking - current smokers have 10-20 fold increased risk; 60% risk reduction after 10+ years of cessation
- Alcohol use (synergistic with tobacco)
- Environmental exposures: wood dust, asbestos, nickel, paint, diesel fumes
- Prior head and neck SCC
- History of recurrent respiratory papillomatosis (3-7% undergo malignant degeneration)
- Gastroesophageal reflux disease
Clinical Evaluation
History
- Duration and progression of hoarseness (3 months - red flag for malignancy)
- Associated sore throat, referred otalgia (via Arnold's nerve - CN X)
- Dyspnea or stridor (airway compromise, advanced disease)
- Dysphagia/aspiration (late sign, usually supraglottic tumors)
- Hemoptysis
- Weight loss
- Smoking and alcohol history
- Prior cancers or radiation to the neck
Physical Examination
- Voice assessment - hoarse, breathy quality
- Comprehensive head and neck examination
- Neck palpation - lymphadenopathy (cervical nodes levels II-IV)
- Dental evaluation (pre-treatment)
- Flexible laryngoscopy - most important bedside examination; directly visualizes vocal folds, lesions, and cord mobility
- Videostroboscopy - assesses mucosal wave; asymmetry or absence suggests malignancy
Investigations
1. Pathological Diagnosis (Gold Standard)
- Direct laryngoscopy under GA + biopsy - endoscopic assessment of tumor extent, assessment for conservation surgery candidacy
- Fine-needle aspiration (FNA) of any palpable cervical lymph node
2. Imaging
| Modality | Purpose |
|---|---|
| CT neck with contrast | Extent of disease; spread to pre-epiglottic, paraglottic, and posterior cricoid areas; lymph node assessment |
| MRI neck | Superior soft tissue contrast; more sensitive for cartilage invasion; multiplanar display; preferred when CT equivocal |
| CT chest | Exclude pulmonary metastasis; an isolated pulmonary nodule is more likely a second primary than a metastatic lesion |
| PET-CT | For advanced disease (T3/T4, N+); alters management in 20-30% of head and neck cancer patients |
Key imaging notes: CT and MRI are complementary to laryngoscopy, revealing deep structure involvement (paraglottic space, thyroid cartilage) not visible endoscopically. CT remains the workhorse due to wide availability and reproducibility.
3. Laboratory Studies
- CBC, electrolytes, liver function tests (LFTs), renal function
- Serum albumin and prealbumin - nutritional status (important for treatment planning)
- ECG - pre-operative cardiac clearance
- Thyroid function if relevant (causes of hoarseness)
Staging (TNM for Glottic SCC)
| Stage | Description |
|---|---|
| T1a | Limited to one vocal fold, normal mobility |
| T1b | Both vocal folds, normal mobility |
| T2 | Extends to sub/supraglottis, or impaired mobility |
| T3 | Vocal fold fixation or paraglottic/inner thyroid cartilage invasion |
| T4a | Moderately advanced - invades thyroid cartilage or beyond larynx |
| T4b | Very advanced - invades prevertebral fascia, encases carotid, or invades mediastinum |
Glottic cancers have low rates of cervical node metastasis at T1 (0-10%) due to sparse lymphatics - this is why early hoarseness with a T1 glottic lesion carries an excellent prognosis.
Treatment
Treatment depends on subsite, T stage, nodal status, performance status, and patient wishes. Current philosophy emphasizes organ preservation wherever possible.
Early Disease (Stage I / II - T1, T2 N0)
Treated with single modality - either radiation or surgery:
Radiotherapy:
- 6-week course, 60-70 Gy total
- Local control rates 90-98% for T1 and favorable T2 lesions
- Advantages: excellent voice outcomes, avoids tracheotomy, non-operative option
- Disadvantages: mucositis, xerostomia, laryngeal edema, chondronecrosis risk, difficulty detecting recurrence
Surgery - Transoral Laser Microsurgery (TLM):
- Preferred surgical option; has largely replaced open partial laryngectomy
- CO2 laser excision, possibly transoral robotic partial laryngectomy (newer)
- Advantages: avoids radiation (saves it for recurrence), similar local control to RT
- Disadvantages: poorer voice outcomes vs. RT; radiation after TLM permanently impairs swallowing
- 5-year disease-free survival for T1-T2 glottic cancer: 88%
- Contraindicated if: vocal fold fixation, bilateral impaired motion, interarytenoid involvement, poor pulmonary status
Advanced Disease (Stage III / IV - T3, T4, N+)
Combined modality approach; organ preservation is still the goal for most T3 lesions.
Concurrent Chemoradiation (CRT) - standard for T3 and T2N+:
- Cisplatin + radiation (concurrent) - landmark RTOG 91-11 study
- Laryngectomy-free survival 88% at 2 years with concurrent CRT
- Superior locoregional control and laryngeal preservation vs. induction chemo or RT alone
- Cetuximab (anti-EGFR monoclonal antibody) is FDA-approved in combination with radiation for patients unfit for cisplatin
Total Laryngectomy:
- Indicated for T4a with penetration through thyroid cartilage
- Patients with severe airway compromise requiring tracheostomy
- Nonfunctional larynx after CRT failure
- Adjuvant postoperative CRT for positive margins or extranodal extension (Level I evidence for improved overall survival)
Neck Dissection:
- For clinical neck disease: comprehensive neck dissection or definitive radiation
- After definitive CRT with complete response on PET-CT at 12 weeks: planned neck dissection is NOT necessary (Level I evidence)
- Subglottic cancer: neck dissection must include level VI (pretracheal and paratracheal)
Voice Rehabilitation After Total Laryngectomy
- Tracheoesophageal prosthesis (TEP) - best voice outcomes
- Esophageal speech - difficult to learn, uses swallowed air
- Electrolarynx - considered mechanical by many patients
Complications of Treatment
| Surgery | Chemoradiation |
|---|---|
| Pharyngocutaneous fistula (higher if prior RT) | Esophageal stenosis |
| Stomal stenosis | Nonfunctional larynx |
| Dysphagia from pharyngeal stenosis | Chondritis |
Follow-Up Schedule
- Year 1: every 1-3 months
- Year 2: every 2-4 months
- Years 3-5: every 4-6 months
- Thereafter: every 6-12 months
Purpose: detect locoregional recurrence, second primary tumors (significant risk in this patient population due to field cancerization from tobacco/alcohol), and treatment complications.
Summary
A 65-year-old male with 3 months of hoarseness must be presumed to have laryngeal carcinoma (glottic SCC) until proven otherwise. Work him up with flexible laryngoscopy as the first step in clinic, followed by direct laryngoscopy + biopsy under GA for histological confirmation and tumor extent mapping, and CT neck and chest for staging. Treatment is guided by stage - TLM or radiotherapy for early disease with excellent results, and concurrent chemoradiation or total laryngectomy for advanced disease, always aiming for organ preservation where feasible.
- K.J. Lee's Essential Otolaryngology, Chapter 44 - Tumors of the Larynx, pp. 815-824
- Cummings Otolaryngology Head and Neck Surgery, p. 1963
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