All of the following cause a grey white membrane on the tonsil, except:: (A) Infectious mononucleosis, (B) Ludwig's angina, (C) Streptococcal tonsillitis, (D) Diphtheria
Answer is B. (b) Ludwig's angina(Ref. Scott Brown, 8th ed., Vol 3; 550)Ludwig's angina is cellulitis of the sub-mandibular space.The rest of the options can cause membrane over tonsils.