A 56-year old male presented with lesion at the lung apex. He was working in asbestos factory for last 20 years. The lung biopsy was seen under electron microscope which revealed the following. What is your diagnosis?
High-Yield Explanation
Ans. (b) MesotheliomaElectron microscopy shows long microvilli & abundant tonofilaments but absent microvillous rootlets and lamellar bodies.