Bull's neck is characteristically seen in:
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.
Hamaoma of Lung
Diphtheria
Glaucoma
Hepatic Candidiasis
Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli)