Intradiploic epidermoid cysts of the skull: a report of four cases

Bikmaz, Kerem; Çoşar, Murat; Bek, Şirzat; Gökduman, C. A.; Arslan, Mahmut; İplikçioğlu, A. Celal

doi:10.1016/j.clineuro.2004.06.005

Cited by 40 publications

(27 citation statements)

References 24 publications

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“…[1][2][3] It is most commonly found at the cerebellopontine angle followed by the middle cranial fossa and ventricle; it is occasionally seen in the intradiploic space. [4][5][6][7][8][9][10] The intradiploic epidermoid cyst accounts for about 25% of epidermoid cysts in the central nervous system. [4][5][6][7][8][9][10] Men are slightly more frequently affected than women.…”

Section: Discussionmentioning

confidence: 99%

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Intradiploic epidermoid cyst with focal internal enhancement

et al. 2006

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We report a case of intradiploic epidermoid cyst with focal internal enhancement. The patient was a 55-year-old woman presenting with right temporal head protrusion and head heaviness. Skull radiography and computed tomography demonstrated an expansile mass in the right diploic space. On magnetic resonance imaging, the mass showed makedly high signal T2-weighted images (T2WI) and intermediate to low signal on T1WI. On contrast-enhanced T1WI, there was nodular internal enhancement, which corresponded to neovascularity on pathology, as well as rim-like enhancement. It should be noted that internal enhancement, an indicator of malignant transformation, may be seen even in a benign epidermoid cyst.

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Section: Discussionmentioning

confidence: 99%

“…[4][5][6][7][8][9][10] The intradiploic epidermoid cyst accounts for about 25% of epidermoid cysts in the central nervous system. [4][5][6][7][8][9][10] Men are slightly more frequently affected than women. 5 This lesion can occurs at any age, with a peak incidence during the third decade.…”

Section: Discussionmentioning

confidence: 99%

Intradiploic epidermoid cyst with focal internal enhancement

et al. 2006

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“…Estos tumores pueden ocurrir a cualquier edad, pero hay un ligero predominio entre la segunda y quinta década 2,3,4,18 . Nuestro caso coincide con el trabajo de Bhora et col. 3 de un paciente mayor de 70 años.…”

Section: Discussionunclassified

“…También se pueden diagnosticar como lesión tumoral (QE de la calota craneal) o en forma fortuita. Pueden desarrollar gran tamaño hasta ocasionar sintomatología clínica 4,9 .…”

Section: Discussionunclassified

Quiste epidermoide intradiploico infratentorial gigante

et al. 2007

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ResumenLos quistes epidermoides son lesiones congénitas benignas, de lento crecimiento, que representan el 1% de todos los tumores intracraneales. En un 25% tienen una localización intradiploica y excepcionalmente infratentorial.Presentamos un caso clínico poco frecuente de un quiste epidermoide intradiploico gigante infratentorial. El paciente consultó por una diplopia y un síndrome cerebeloso. La tomografía computarizada y la resonancia magnética mostraron una lesión gigante lítica extradural de la fosa posterior de 5,2 cm x 3,8 cm, con realce periférico con el contraste. Utilizamos un abordaje suboccipital retrosigmoideo para realizar una exéresis completa tumoral y una resección incompleta capsular, debido a la adherencia de ésta al seno lateral.La evolución posoperatoria fue favorable. Realizamos una revisión bibliográfica de la literatura y discusión de nuestro caso.PALABRAS CLAVE: Quiste epidermoide. Intradiploico. Infratentorial. Giant intradiploic infratentorial epidermoid cyst SummaryEpidermoid cysts are benign, uncommon lesions (1% of all intracranial tumors). Their localization is intradiploic in 25% of cases, and exceptionally subtentorial.We report here a rare case of giant intradiploic infratentorial epidermoid cyst. A 74-year old patient presented with recent diplopia and sindrome cerebellar. CT scan and MR imaging revealed a giant osteolytic extradural lesion of the posterior fossa (5,2 cm x 3,8 cm) with a small area of peripheral enhancement after contrast injection. Retrosigmoid suboccipital craniectomy allowed a satisfactory removal of the tumor, followed by an acrylic cranioplasty. The outcome was good. Neuropathological examination confirmed an epidermoid cyst.We review the literature and discuss our case.KEY WORD: Epidermoid cyst. Intradiploic. Infratentorial. IntroducciónLos quistes epidermoides (QE) intracraneales son lesiones congénitas de bajo grado de crecimiento e histológi camente benignas. Representan alrededor del 1% de todos los tumores intracraneales. Es conocido como "el tumor perlado" por sus características macroscópicas de color nacarado. Sus localizaciones más frecuentes son a nivel del ángulo pontocerebeloso, región supraselar y cuadrigeminal 2,15,21 .Los quistes epidermoides intradiploicos son aproximadamente el 25% de todos los QE 3 . La ubicación en la fosa posterior es poco frecuente.Presentamos el caso clínico de un paciente con diagnós-tico de QE intradiploico infratentorial gigante. Caso clínicoPaciente de 74 años, con antecedentes de miocardiopatía isquémica, que consultó por una diplopia de instalación brusca y un síndrome cerebeloso derecho. En el examen neurológico presentaba una discreta dismetría derecha y una ataxia cerebelosa. El examen oftalmológico fue normal.La tomografía computarizada mostraba una lesión expansiva extradural de la fosa posterior, hipodensa, de 5,2 cm x 3,8 cm, con calcificaciones pericapsulares, con erosión ósea occipital y con realce periférico con el contraste (Fig 1).En la resonancia magnética esta lesión se presentaba

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“…2,6,12,15) Intracranial epidermoid cysts are usually located in the cerebellopontine angle and parasellar region, as well as the petrous apex, chiasmal region, brain stem, or intraventricular cavity. 5,7) About 25% of central nervous system epidermoid cysts are intradiploic, [1][2][3][4][5]9,10,12,13) and about 3% of intradiploic epidermoid cysts extend to the subdural space. 6) Intracranial epidermoid cysts have a benign clinical and biological nature originating from the inner epithelial lining of the tumor capsule.…”

Section: Introductionmentioning

confidence: 99%

Dumbbell-Shaped Intradiploic Epidermoid Cyst Involving the Dura Mater and Cerebellum -Case Report-

Ichimura

Hayashi

Yazaki

et al. 2008

Neurol. Med. Chir.(Tokyo)

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A 55-year-old woman presented with an epidermoid cyst extending to the cerebellum manifesting as headaches and pain in the left eye. Magnetic resonance imaging showed an intradiploic part with ring enhancement and an intracerebellar part. Intraoperative inspection revealed erosion of the occipital bone and defective dura mater. The tumor was located both epidurally and subdurally and the cyst consisted of pearly white keratin. The tumor was totally removed and the patient was discharged with no neurological deficit. The intradiploic part of the tumor formed the body and the intracerebellar part was caused by inflammatory reaction, which resulted in the atypical enhancement of the intradiploic part.

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Intradiploic epidermoid cysts of the skull: a report of four cases

Cited by 40 publications

References 24 publications

Intradiploic epidermoid cyst with focal internal enhancement

Intradiploic epidermoid cyst with focal internal enhancement

Quiste epidermoide intradiploico infratentorial gigante

Dumbbell-Shaped Intradiploic Epidermoid Cyst Involving the Dura Mater and Cerebellum -Case Report-

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