## Clinical Presentation & Differential The patient presents with a classic triad of laryngeal malignancy red flags: - Progressive hoarseness (>3 weeks) - Dysphagia - Visible, irregular, ulcerated lesion with vocal cord fixation on endoscopy Vocal cord fixation is a key sign of advanced local disease (T3 or T4) and mandates urgent tissue diagnosis. ## Why Direct Laryngoscopy with Biopsy is the Next Step **Key Point:** Any suspicious laryngeal lesion visualized on flexible endoscopy requires tissue confirmation via direct laryngoscopy and biopsy to establish histological diagnosis and grade of differentiation. **High-Yield:** Direct laryngoscopy under GA allows: 1. Adequate visualization and multiple biopsies from different sites 2. Assessment of subglottic extension and anterior commissure involvement 3. Exclusion of synchronous lesions 4. Staging imaging (CT/MRI larynx, chest, abdomen) is performed *after* histological confirmation, not before **Clinical Pearl:** Vocal cord fixation indicates involvement of the cricoarytenoid joint or recurrent laryngeal nerve, making this at least T3 disease. Biopsy must precede imaging to guide the extent and type of imaging needed. ## Management Algorithm ```mermaid flowchart TD A[Suspicious laryngeal lesion on flex scope]:::outcome --> B[Direct laryngoscopy + biopsy]:::action B --> C{Histology confirms malignancy?}:::decision C -->|Yes| D[Staging: CT/MRI larynx + chest/abdomen]:::action C -->|No| E[Repeat endoscopy or alternative diagnosis]:::action D --> F[Multidisciplinary tumor board discussion]:::action F --> G[Definitive treatment: Surgery/RT/Chemo]:::action ``` **Reasoning:** Biopsy is the diagnostic gold standard and must be obtained before staging or treatment planning. Imaging without histology is premature and delays diagnosis. 
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