Intracranial cystic lesion Intracranial dermoid cyst 2012-08-20T09:22:25Z HP:0012097 See Figure 9 in PMID:16714456. These cysts increase in size by means of glandular secretion and epithelial desquamation. Growth can lead to rupture of the cyst contents, causing a chemical meningitis that may lead to vasospasm, infarction, and even death. UMLS:C4023044 A congenital inclusion cysts that arises from the inclusion of ectodermally committed cells at the time of neural tube closure (3rd-5th week of embryogenesis). The capsule of dermoid cysts consists of simple epithelium supported by collagen. In thicker parts, the lining is supplemented with dermis containing hair follicles, sebaceous glands, and apocrine glands.