Journals / Okmeydanı Tıp Dergisi / 2015 / Cilt: 31 - Sayı: 3

Petrous Apex Cholesteatoma Developing After Radical Mastoidectomy

Radikal Mastoidektomi Sonrası Gelişen Petröz Apeks Kolesteatomu

Pages
170–173
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Although open cavity is recommended for a possible recurrence, in this case, obliteration was done due to the risk of CSF otorrhea and infection.

📌 3 Key Takeaways

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Objective & Hypothesis:Petrous apex cholesteatomas are cholesteatomas which are in the medial of otic capsule.
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Key Findings & Data:In this case, 55 year old female who had facial paralysis and CSF otorrhea after radical mastoidectomy for petrous apex cholesteatoma is presented.
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Conclusion & Impact:Although open cavity is recommended for a possible recurrence, in this case, obliteration was done due to the risk of CSF otorrhea and infection.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Petrous apex cholesteatomas are cholesteatomas which are in the medial of otic capsule. In this case, 55 year old female who had facial paralysis and CSF otorrhea after radical mastoidectomy for petrous apex cholesteatoma is presented. The otoscopic examination of the patient who had undergone radical mastoidectomy 10 years ago, revealed that the cavity had smooth surface, ephitelized and healthy in appearance. On the tomography of the temporal bone, soft tissue density that eroded cochlea superiorly forming tegmen defect, showed intracranial extension from medial of the semicircular canals and surrounded internal auditory canal (IAC) superiorly, was observed. On the audiometric examination of the left ear, severe sensorineural hearing loss (SNHL) was detected. Subtotal petrosectomy was done due to cholesteatoma recurrence of supralabyrinthine-apical petrous bone. It was understood that cholesteatoma matrix originated from supralabyrinthine cells located in the superior of the cochlea. It was observed that cholesteatoma accompanied superior petrosal sinus between dura and partially destructed petrosal bone and on the medial of superior semisurculer canal. After subtotal petrosectomy, cavity was obliterated with adipose tissue and the external ear canal was terminated as a blind pouch. Postoperative complications were not observed and the patient was discharged uneventfully. In the first postoperative year, on the control diffusion magnetic resonance (MR), recurrent lesion was not observed. The case was admitted to the clinic because of CSF otorrhea which has not been reported in the literature before. Cholesteatoma unleading to destruction of soft tissue reached İAC, eroded the bone to which dura leaf was attached, and this erosion leaded to otorrhea. It is very difficult to separate cholesteatoma from dura completely and is a major reason for relapse. Therefore, cavity obliteration is controversial. Although open cavity is recommended for a possible recurrence, in this case, obliteration was done due to the risk of CSF otorrhea and infection.

Özet

Petröz apeks kolesteatomları otik kapsülün medialinde olan kolesteatomlardır. Bu olguda, radikal mastoidektomi sonrası fasiyal paralizi ve BOS otoresine neden olan, petröz apeks kolesteatomlu 55 yaşında bir olgu sunulmaktadır. On yıl önce radikal mastoidektomi operasyonu geçiren olgunun, otoskopik muayenesinde, kavite düzgün yüzeyli, epitelize ve sağlıklı görünümdeydi. Temporal kemik tomografisinde, kohleayı superiordan erode ederek tegmen defekti oluşturan, semisirküler kanalların medialinden intrakranial uzanım gösteren ve internal akustik kanalı (İAK) superiordan çevreleyen yumuşak doku dansitesi gözlendi. Odyometrik incelemede sol kulakta ileri derecede sensörinöral işitme kaybı (SNİK) tespit edildi. Nüks supralabirentin-apikal petröz kemik kolesteatomu nedeniyle subtotal petrözektomi uygulandı. Kolesteatom matriksinin kohleanın superiorunda bulunan supralabirentin hücreden kaynaklandığı anlaşıldı. Kolesteatomun superior semisiküler kanalın medialinde dura ile kısmen destrükte olan petröz kemik arasında superior petrözel sinüs boyunca uzandığı gözlendi. Subtotal petrözektomi sonrası kavite yağ dokusu ile oblitere edildi ve dış kulak yolu kör kese şeklinde sonlandırıldı. Postoperatif komplikasyon gözlenmedi ve hasta şifa ile taburcu edildi. Postoperatif birinci yıl kontrolünde difüzyon manyetik resonans (MR)'da nüks lezyon gözlenmedi. Olgu, kliniğe BOS otoresi nedeniyle başvurmuş olup, literatürde ilktir. Yumuşak doku destrüksiyonuna neden olmayan kolesteatomun İAK uzanması ve burada dura yaprağının tutunduğu kemiği erode etmesi otoreye neden olmuştur. Kolesteatomun dura üzerinden tamamıyla sıyrılması oldukça güçtür ve nüks için önemli bir nedendir. Bu nedenle kavitenin obliterasyonu tartışmalıdır. Olası nüks lezyon için açık kavite önerilmekle birlikte, olguda BOS otoresi ve infeksiyon riski nedeniyle obliterasyon uygulandı.

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Cite This Article

BALIKÇI, H. H., ÖZBAY, İ., ÖZKUL, H., SALVİZ, M. (2015). Petrous Apex Cholesteatoma Developing After Radical Mastoidectomy. Okmeydanı Tıp Dergisi, Cilt: 31 - Sayı: 3, 170–173. https://ajindex.com/articles/291811

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