Open AccessLabyrinthine destruction caused by inflammatory pseudotumor of the temporal bone: A report of three cases and review of the literature
Author(s) -
Imamura Kanako,
Hosoya Makoto,
Kasuya Kento,
Shimanuki Marie N.,
Shinden Seiichi,
Ogawa Kaoru,
Oishi Naoki
Publication year - 2021
Publication title -
laryngoscope investigative otolaryngology
Language(s) - English
Resource type - Journals
ISSN - 2378-8038
DOI - 10.1002/lio2.609
Subject(s) - medicine , lesion , temporal bone , middle ear , auditory canal , inner ear , ear canal , surgery , vestibular system , cholesteatoma , radiology , anatomy
Background Inflammatory pseudotumors (IPTs) are rare, idiopathic, and inflammatory lesions that are histopathologically benign. Here, we present three cases of labyrinthine destruction caused by an IPT. Methods The first patient was a 74‐year‐old male with a mass lesion extending from the inner ear to the external ear canal. The second patient was a 62‐year‐old female with a foliated polycystic lesion in the petrous bone on the dorsal side of the left internal auditory canal. The third patient was a 68‐year‐old female with a mass extending from the inner ear to the middle ear, destroying the semicircular canal and cochlea. Results In two cases, we performed surgical resection successfully with no recurrence. In the other case, the lesion showed shrinkage after chemotherapy for colorectal cancer incidentally found during the examination process. Conclusion Surgical technique and indication for IPT should be based on the location and function of the lesion. In addition, there is room to consider pharmacotherapy as a treatment option for IPT of the temporal bone. Level of Evidence 4.