Skip to main content
Fig. 1 | BMC Pediatrics

Fig. 1

From: Postoperative results of ventilation tube insertion: a retrospective multicenter study for suggestion of grading system of otitis media with effusion

Fig. 1

Criteria for the proposed otitis media with effusion grading system. a: Grade 0 is the normal condition without effusion. b: Grade I is scant effusion but abnormal tympanic membrane (TM). c: Grade II is effusion less than half of the tympanic cavity. d: Grade III is effusion over half of the tympanic cavity with air bubbles present. e: Grade IV shows effusion that is completely filling the middle ear cavity without bubbles. f: Grade V is retracted TM or hemotympanum

Back to article page

BMC Pediatrics

ISSN: 1471-2431

Contact us