ANSWER AND REASONINGC. Primary total laryngectomy with appropriate neck treatment and rehabilitation
Anatomical preservation is not equivalent to functional preservation; major cartilage invasion and unsafe baseline function favour surgical discussion when resectable and the patient is fit.
Why every option is right or wrong
A. Radiotherapy alone guarantees voice preservation: It may leave a non-functioning larynx and does not guarantee safe swallowing or control.
B. Endoscopic laser excision: This is inadequate for extensive transcartilaginous disease.
C. Primary total laryngectomy with appropriate neck treatment and rehabilitation: Anatomical preservation is not equivalent to functional preservation; major cartilage invasion and unsafe baseline function favour surgical discussion when resectable and the patient is fit.
D. Tracheostomy as definitive cancer treatment: It may secure an airway but does not treat the tumour.
E. No treatment because aspiration predicts poor outcome: Curative options and rehabilitation should still be assessed through the MDT.
What if the scenario changed?
If the tumour were T2 with preserved function, transoral surgery or radiotherapy could offer organ-preserving curative options.