Oommen Arun, Govindan Jayasree, Peroor Devan Surendran, Azeez C Roshan, Rashmi R, Abdul Jalal Muhammed Jasim
Department of Neurosurgery, Lakeshore Hospital and Research Centre, Ernakulam, Kerala, India.
Department of Pathology, Lakeshore Hospital and Research Centre, Ernakulam, Kerala, India.
Asian J Neurosurg. 2018 Apr-Jun;13(2):514-517. doi: 10.4103/1793-5482.181146.
Intraparenchymal or intradiploic epidermoid cysts are very rare. Most of these cysts, when present, tend to involve the frontal and temporal lobes, and occasionally, the pineal gland or the brain stem. Here, we report a 45-year-old female, who presented with localized occipital headache and a tender occipital swelling, gradually increasing in size. She was hemodynamically and neurologically stable and did not have any focal neurological deficits. Whole skull and brain imaging revealed a well-demarcated expansile lytic lesion in the right occipital bone, which was hypointense on T1-weighted and hyperintense on both T2-weighted imaging and diffusion-weighted imaging without any contrast enhancement. The patient underwent a right occipital craniotomy and total excision of the intradiploic space occupying lesion. Histopathological examination confirmed the lytic bone lesion over occipital bone as intradiploic epidermoid cyst.
脑实质内或板障内的表皮样囊肿非常罕见。这些囊肿大多出现时往往累及额叶和颞叶，偶尔也会累及松果体或脑干。在此，我们报告一名45岁女性，她出现局限性枕部头痛和枕部压痛性肿胀，且大小逐渐增大。她的血流动力学和神经功能稳定，没有任何局灶性神经功能缺损。全颅骨和脑部成像显示右枕骨有一个边界清晰的膨胀性溶骨性病变，在T1加权像上呈低信号，在T2加权像和弥散加权像上均呈高信号，且无任何强化。患者接受了右枕部开颅手术，并将占据板障间隙的病变完全切除。组织病理学检查证实枕骨上的溶骨性病变为板障内表皮样囊肿。
