75 year old man with hoarseness of voice, dyspnoea, chronic cough productive of yellowish sputum with haemoptysis, and progressive breathlessness for the past 6 months. He also complains of night sweats and fever on and off.
Extensive destruction of lung tissue by caseous necrosis resulting in consolidation and cavitation particularly in the upper lobe. The residual lung shows multiple pale yellowish punctate foci of caseous necrosis. Patchy fibrous adhesions are seen on the visceral pleura.
The larnyx shows caseous necrosis with thickening of the mucosa and erosions. The trachea shows roughening of the mucosa.