In a 70-year old man who was working in an asbestos factory for 10-15 years. On routine X-ray. a mass was seen in the right apical region of the lung. Biopsy w s taken from the mass. Which of the following is seen on electron microscopic examination?(AIIMS November 2014, November 2013)
Numerous long, slender microvilli Neurosecretory granules in the cytoplasm Melanosomes Desmosomes