A complete voice examination is built from three interlocking parts: the patient’s history, a structured assessment of vocal capabilities, and endoscopic visualization of the larynx. No single part is sufficient on its own — each narrows the possibilities that the others must resolve. The chapters in this section walk through the examination from first principles: what a primary care physician can learn before any scope is placed, how to listen systematically to the voice, what the laryngoscope reveals and what it cannot, and how high-definition imaging and selective color change the information available at the moment of examination.
◆ Voice — Primary Care Exam
A primary care physician can draw precise inferences from the voice before ordering tests or prescribing medications. Amelia’s case illustrates how common treatments — antibiotics, steroids, reflux therapy — can obscure the real diagnosis when applied without an adequate examination.
◆ Complete & Adequate Voice Exam
The three-part framework — history, vocal capabilities, endoscopy — and why all three are required. Any single component misleads when taken alone; the power of the examination comes from triangulation across all three sources of information.
◆ Pitch & Volume
Listening to pitch and volume together — the laryngogram concept — reveals patterns of impairment that a single perceptual scale like GRBAS cannot capture. The shape of a patient’s vocal range map predicts the underlying pathology before the scope is placed.
◆ Vocal Capabilities Testing
A structured sequence of vocal tasks — anchor pitch, maximum phonation time, pitch range, loudness range, swelling tests, vegetative sounds, and neurologic probes — converts a brief vocal performance into a diagnostic map of what the cords can and cannot do.
◆ Vocal Findings — Noise
Air leak, polyphonia, diplophonia, and flutter each represent a distinct disruption of the glottal signal. Gabriella’s airy voice, Candy’s double-toned polyp, and a case of vocal cord paresis show how noise in the sound tells the examiner where the closure is failing.
◆ Vocal Findings — Altered Signal
Onset delays, pitch breaks, tremor, spasm, and inspiratory stridor each represent a disruption in the timing or control of the vocal signal. Tammy, Samuel, Margaret, and George illustrate how the shape of the abnormality points to the neurological or mechanical cause.
◆ Laryngoscopy
Rigid, flexible, and chip-tip endoscopes each provide a different view; none replaces the others. The recording device matters more than the scope. A complete exam sequence — from equipment selection through stroboscopy — takes 45 to 60 minutes and produces a permanent record.
◆ High Definition Techniques
Snapshot examination finds large lesions; high-definition examination finds the precise margins, the capillary pattern, and the mucosal wave that determine diagnosis and surgical planning. The closeness principle, stroboscopy technique, and selective color imaging (NBI and iScan) are explained in detail.
◆ Topical Anesthesia
Flexible chip endoscopy through an anesthetized nose allows prolonged, close examination without the patient’s gag reflex. The 4% lidocaine protocol, Abraham cannula technique, laryngeal gargle, and transcricothyroid injection each serve a specific purpose in the sequence.
◆ Endoscopic Surgical Margins
Selective color imaging converts the laryngoscope into an optical biopsy instrument. Two cases — a polyp with feeding capillary ectasias and a squamous cell carcinoma mapped over serial exams — show how capillary patterns define the boundary between disease and normal tissue before any incision is made.