[Intracranial lipoma of the temporal lobe--report of a case and review of the literature].
A 52-year-old female was admitted to our clinic with chief complaint of headache since 2 months ago. Plain computed tomography (CT) revealed low density mass in her right temporal lobe beneath the sylvian fissure with mean Hounsfield number of -52. On admission, no neurological deficit was found. This low density mass had no enhancement region. No abnormal finding was seen in plain skull roentgenogram and right carotid angiography. No epileptic pattern was found electroencephalographically. Right fronto-temporal craniotomy and total removal of tumor was performed to confirm the histological nature of this tumor. The tumor was elastic soft with yellowish color and totally removed. Histological examination revieled typical fatty cells and many capillaries. Her postoperative course was uneventful and was discharged with no neurological deficit. Intracranial lipoma is one of rare brain tumors with incidence of 0.03% or 0.046% in all brain tumor. These tumors are most frequently located in the midline structure, especially in the corpus callosum. After introduction of CT scan, however, lipomas of the extraaxial locations are also reported. From review of literature, location of the lipomas may be divided into 2 groups: the one is located in the midline or paramedian structures of the brain and the other is the extraaxial region such as the sylvian fissure or the cerebellopontine angle. The former group is often associated with anomalies of the central nervous system related to dysraphism. However, the latter group is seemed to have rare association with dysraphism.(ABSTRACT TRUNCATED AT 250 WORDS)
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Kannuki
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Okajima
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Sato
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Kusaka
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Matsumoto
D001932:Brain Neoplasms / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008067:Lipoma / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D013702:Temporal Lobe