Cawheel sign is seen in
ASOM
CSOM
Serous otitis media
Tuberculous otitis media
Cawheel appearance is seen in ASOM. Leash of blood vessels appears along the handle of malleus and at the periphery of tympanic membrane impaing it a ca-wheel appearance. Later, whole of tympanic membrane including pars flaccida becomes uniformly red. Seen in stage of Presuppuration Reference: Dhingra; Chapter 10; Page no: 62
Ear