Jahn A F, Hawke M
J Otolaryngol. 1976 Jun;5(3):221-6.
Foreign body granulomas of the ear are seldom looked for, but probably common occurrences. They may be due to exogenous or endogenous material which became implanted in the course of trauma or treatment in the external or middle ear. They provoke inflammation which may be subclinical, clinical, or masked by concurrent infection. They can aggravate chronic infection, initiate acute local inflammation, or jeopardize surgical success. Histologically, the foreign material is seen lying freely or partially encapsulated within chronic inflammatory tissue, in close proximity to foreign body giant cells. Medical treatment can only succeed when the offending agent is surgically removed.
耳部异物肉芽肿很少被关注，但可能很常见。它们可能由外源性或内源性物质引起，这些物质在中耳或外耳的创伤或治疗过程中植入。它们引发的炎症可能是亚临床的、临床的，或被并发感染掩盖。它们可加重慢性感染、引发急性局部炎症或危及手术成功。组织学上，可见异物自由存在或部分被包裹在慢性炎症组织内，紧邻异物巨细胞。只有通过手术切除致病因子，药物治疗才能成功。
