This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
Bull's neck is characteristically seen in: 
Select and explain. 
A. Hamaoma of Lung, B. Diphtheria, C. Glaucoma, D. Hepatic Candidiasis
B: Diphtheria
Answer: B: Diphtheria 
Explanation: Faucial diphtheria : commonest type of diphtheria. Characterized by fever, sore throat, pseudo membrane over fauces. Cervical adenitis with sub-mandibular edema is called bull neck.