Summary
NMR images in five patients with surgically proved, congenital germinal layer intracranial neoplasms (two dermoid and three epidermoid tumors) were reviewed. The dermoids were typically midline (suprasellar or parapineal) masses with sharply-defined margins. Relaxation times were variable, but if fat was present, T1 was decreased, and T2 was increased. The epidermoids were off the midline (cerebellopontine angle, temporal lobe, frontal lobe) masses with generally long T1 and T2 relaxation times. Obstructive hydrocephaly was noted in one patient, and tumor to ventricular communication was demonstrated in another.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Russell D, Rubinstein LJ (1977) Pathology of tumours of the nervous system, 4th ed. Williams and Wilkins, Baltimore, pp 24–32
Lee SH, Rao KCVG (1983) Cranial computed tomography. MacGraw-Hill, New York, p 251
Newton TH, Poots DG (1977) Radiology of the skull and brain, Vol 3. Mosby, St Louis, p 3032
Newton TH, Potts DG (1971) Radiology of the skull and brain, Vol 1, Bk 2. Mosby, St Louis, pp 860–862
Zylak CJ, Childe AE, Ross RT, Parkinson D (1969) Lucent unilateral supratentorial dermoid cyst: report of an unusual case. AJR 106: 329–332
Maravilla KR (1977) Intra-ventricular fat-fluid level secondary to rupture of an intracranial dermoid cyst. AJR 128: 500–501
Hauser H, Elkins CW (1949) Intraventricular epidermoid; characteristic pneumo-encephalographic findings. Radiology 52: 69–74
Davis KR, Roberson GH, Taveras JM, New PFJ, Trevor R (1976) Diagnosis of epidermoid tumors by computed tomography. Radiology 119: 347–353
Mikhael MA, Mattar AG (1978) Intracranial pearly tumors: the roles of computed tomography, angiography, and pneumo-encephalography. J Comp Assist Tomogr 2: 421–429
Cornell SH, Graf CJ, Dolan KD (1977) Fat-fluid level in intracranial epidermoid cyst. AJR 128: 502–503
Laster DW, Moody DM, Ball MR (1977) Epidermoid tumors with intraventricular and subarachnoid fat: report of 2 cases with CT. AJR 128: 504–505
Johnson MA, Bydder GM (1983) NMR imaging of the brain in children. Br med Bull 40: 175–178
Steiner RE, Bydder GM (1984) Clinical NMR imaging of the brain and cord. Diagn Imag Clin Med 53: 13–21
Pavlicek W, Modic M, Weinstein M (1984) Pulse sequence and significance. Radiographics 4: 49–65
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Davidson, H.D., Ouchi, T. & Steiner, R.E. NMR imaging of congenital intracranial germinal layer neoplasms. Neuroradiology 27, 301–303 (1985). https://doi.org/10.1007/BF00339561
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00339561