This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Most commonly paraneoplastic syndromes are associated with - 
Select and explain. 
A. Bronchial carcinoid, B. Small cell carcinoma, C. Broncho-alveolar carcinoma, D. Bronchial adenoracinoma
B: Small cell carcinoma
Answer: B: Small cell carcinoma 
Explanation: Harshmohan textbook of pathology 7th edition para neoplastic syndrome are a group of conditions developing in patients with advanced cancer which are neither explained by direct and distant spread of the tumor nor by the usual hormone elaboration by the tissues of origin of tumors. Cushing syndrome in about 10% patients of small cell carcinoma of the lung elaborate ACTH orACTH like substance..