"Bullneck" appearance is a characteristic feature seen in
Regional lymphadenopathy in diphtheria causes a brawny thickening /swelling all around the neck, giving a 'bull neck" appearance Ref : Park 23rd edition Pgno : 161
Epidermolysis bullosa
Severe Diphtheria
Epidemic Parotiditis
Acute Epiglottitis
Concept of health and disease