Hopsu Erkki, Pitkäranta Anne
Department of Otorhinolaryngology, Kymenlaakso Central Hospital, Korka, Finland.
Otol Neurotol. 2008 Apr;29(3):350-2. doi: 10.1097/mao.0b013e3181616cba.
Acquired atresia of the ear canal presents rarely in children. Idiopathic inflammatory medial meatal fibrotizing otitis (IMFO) evidently has its own distinct etiopathologic findings causing acquired ear canal atresia.
Two IMFO children treated and followed-up at the Department of Otorhinolaryngology of Helsinki University Hospital.
Clinical and radiologic evaluation of 2 children with IMFO solely affecting the glabrous skin over the osseous part of the ear canal and the tympanic membrane.
Review of identical cases of the acquired postinflammatory or inflammatory medial meatal atresia in children reported in association with literature.
Idiopathic inflammatory medial meatal fibrotizing otitis, affecting solely the glabrous skin on the tympanic membrane and the osseous part of the external ear canals, is manifesting in 2 children without ongoing chronic middle ear infection.
The etiopathologic findings or pathophysiology of IMFO is speculative. The success of surgical correction of the already-formed fibrous atresia has not been established.
后天性耳道闭锁在儿童中很少见。特发性炎性中耳道纤维性中耳炎（IMFO）显然有其独特的病因病理表现，可导致后天性耳道闭锁。
两名在赫尔辛基大学医院耳鼻喉科接受治疗及随访的IMFO患儿。
对两名仅累及耳道骨性部分及鼓膜上无毛皮肤的IMFO患儿进行临床及影像学评估。
结合文献回顾儿童后天性炎症后或炎性中耳道闭锁的相同病例。
特发性炎性中耳道纤维性中耳炎仅累及鼓膜上的无毛皮肤及外耳道骨性部分，在两名无持续性慢性中耳感染的儿童中表现出来。
IMFO的病因病理表现或病理生理学具有推测性。对于已形成的纤维性闭锁进行手术矫正的成功率尚未明确。
