Shehadi J A, Alorainy I A, Johnston K M
Division of Neurosurgery, Montreal General Hospital, McGill University, Quebec, Canada.
Can J Neurol Sci. 1999 Nov;26(4):321-4. doi: 10.1017/s0317167100000470.
Cranial dermal sinuses are rare and occur most frequently in the posterior fossa and along the midline. Likewise, supratentorial dermoid cysts are very uncommon.
We report a unique case of an adult female patient with both a supratentorial dermoid cyst and an incomplete dermal sinus tract.
The patient is a 31-year-old female, who presented with a new onset complex partial seizure. Neuroimaging and surgery revealed a right superior temporal dermoid cyst with an associated dermal sinus tract. Furthermore, the dermal sinus tract was incomplete and had no cutaneous manifestations.
We present a rare patient with an off midline supratentorial dermoid cyst associated with a uniquely incomplete cranial dermal sinus tract. The dermal sinus tract involved the bone, dura and intradural compartment, without involving the overlying skin. This represents a novel variant in the spectrum of cranial dermal sinus abnormalities.
颅骨皮样窦罕见，最常发生于后颅窝及中线部位。同样，幕上皮样囊肿也非常少见。
我们报告一例成年女性患者的独特病例，该患者同时患有幕上皮样囊肿和不完全性皮样窦道。
患者为31岁女性，新发复杂部分性发作。神经影像学检查及手术发现右侧颞上叶有一个皮样囊肿并伴有皮样窦道。此外，皮样窦道不完全，且无皮肤表现。
我们报告了一例罕见患者，其幕上偏离中线的皮样囊肿与独特的不完全性颅骨皮样窦道相关。皮样窦道累及骨骼、硬脑膜及硬膜内间隙，但未累及上方皮肤。这代表了颅骨皮样窦异常谱系中的一种新变异。
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