<prompt> A 30-year-old woman presents with history of fever for 2 weeks with multiple episodes of haemoptysis. Bronchoscopy shows a polypoid mass covered with intact mucosa. Surgical resection was done and the histology slide is shown below. What is the diagnosis?Carcinoid tumourLarge cell cancerPulmonary hamaomaAdenocarcinoma lung  <response>: Carcinoid tumor Aka Kulchitsky cell tumor Commonly present in bronchus Causes local damage, hemoptysis, diarrhea, fever Histology - polypoid cell with intact mucosa, basophilic nest of cells. 