American Journal of Roentgenology, Vol 126, Issue 3, 629-633
Copyright © 1976 by American Roentgen Ray Society
Intra- and extracerebral arachnoid cyst. An atypical roentgenographic presentation
RE Latchaw
and
J Nadell
Arachnoid cysts present in a variety of ways, and the preoperative diagnosis usually requires a high degree of suspicion. Bony changes consistent with a chronic focal mass effect, a relative paucity of clinical findings compared to the size of the lesion, and an extracerebral mass with an intracerebral component suggest the possibility. We present a case in which there appears to be a large, deep intracerebral mass associated with an extracerebral expansion.