<prompt> Sago grain appearance is seen inHealed myringitis bullosaOtomycosisMalignant otitis externaKeratosis obturans  <response>: Myringitis bullosa It is a painful condition characterized by the formation of haemorrhagic blebs on the tympanic membrane and deep meatus. It is probably caused by a virus or Mycoplasma pneumonia. Ref: Dhingra, ENT, 6th edition, pg no.55 