Headache & Pain
Headache associated with illicit drug use
Mar. 28, 2022
Nearly 3,000 illustrations, including video clips of neurologic disorders.
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
Full spectrum of neurology in 1,200 comprehensive articles.
Diagrammatic illustration of cranium anteriorly and in midsagittal plane in normal (A) and in the 3 subgroups of frontoethmoidal cephalocele (B, C, D), showing the location of bony defect and cephalocele sac (thick line). The medial wall of orbit instead of the midsagittal plane is shown in D. E, ethmoidal bone; F, frontal bone; M and shaded area, maxillary bone; N and striped area, nasal bone; NC, nasal cartilage. (Used with permission: Charoonsmith T, Suwanwela C. Frontoethmoidal encephalomeningocele with special reference to plastic reconstruction. Clin Plast Surg 1974;1:27-47.)