Fast-Growing Intradiploic Epidermoid Cyst with Osteolytic Features in the Parietal Bone of an Adult: A Case Report

Peiran Xu1, Chengxian Yang1, Xueyuan Li1, Yayan Bi2, Yunxiao Meng2, Wenbin Ma1, Renzhi Wang1 and Xinjie Bao1*

1Department of Neurosurgery, Peking Union Medical College Hospital, China
2Department of Pathology, Peking Union Medical College Hospital, China

^*Correspondance to: Xinjie Bao 

 PDF  Full Text DOI: 10.25107/2474-1647.2533

Abstract

Epidermoid cysts are rare but slowly-growing congenital lesions of central nervous system that mainly reside in the subdural space. Diploic epidermoid cysts are occasionally encountered in clinic, often with a slowly enlarging size and majorly in children. The present study reports a case of fastgrowing intradiploic epidermoid cyst with osteolytic features in the parietal bone of an adult. A 37-year-old male presented with a rapidly-growing mass in his left frontoparietal region without subjective complains. Brain CT and MRI showed a well-defined intradiploic mass in the left parietal bone, which had homogenously low T1 signal, high T2 signal, but no visible enhancement. The lesion was totally removed with a left frontoparietal craniotomy. Histological examination revealed an epidermoid cyst with osteolytic features. One-year follow-up CT found no recurrence. This case shows one fast-growing intradiploic epidermoid cyst with osteolytic features in the parietal lobe of an adult with a good recovery after surgery.

Keywords

Epidermoid cysts; Histological examination; Frontoparietal craniotomy

Cite the article

Xu P, Yang C, Li X, Bi Y, Meng Y, Ma W, et al. Fast-Growing Intradiploic Epidermoid Cyst with Osteolytic Features in the Parietal Bone of an Adult: A Case Report. Clin Surg. 2019; 4: 2533..