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KMID : 1037420170120020066
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Journal of Korean Skull Base Society
2017 Volume.12 No. 2 p.66 ~ p.69
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A case of huge cholesterol granulomatous cyst with massive extratemporal extension
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Kim Ji-Sun
Kim Su-Bin
Oh Jeong-Hoon
Chang Ki-Hong
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Abstract
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Cholesterol granulomas and cysts may arise from any portions of the pneumatized temporal bone of human, resulting from foreign body reactions to the accumulation of cholesterol crystals. Most of them arise from middle ear cleft, mastoid process and petrous apex but extra-temporal extension, especially cervical extension, is rare. In general, the size is not so large before clinical detection. The treatment principle for cholesterol cyst is surgical drainage. The authors experienced and treated a 53-years-old female patient with a huge cholesterol granulomatous cyst extending from the mastoid cavity to the posterior cranial fossa and the neck. Consistent drainage of intracranial cyst lesion was achieved after removal of cyst in mastoid cavity and the surgical defect in the neck was obliterated by utilizing a rotational temporalis myofascial flap. We report this case with relevant review of literature.
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KEYWORD
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Cholesterol Granuloma, Posterior cranial fossa, Neck, Temporal bone
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