Intracranial adenoid cystic carcinoma mimicking meningioma: report of two cases.
Two cases of intracranial adenoid cystic carcinoma mimicking meningioma are reported. In one, MRI showed not only a homogeneously enhancing extra-axial tumour attached to the dura mater of the posterior cranial fossa, but also surrounding dural enhancement, the "dural tail sign". In the second, CT demonstrated a well-demarcated enhancing extra-axial tumour, indistinguishable from a sphenoid ridge meningioma extending into the orbit. The neuroradiological features of intracranial adenoid cystic carcinoma may thus closely resemble those of meningioma.
Department of Neurosurgery, Kyushu University, Fukuoka, Japan.
T
T
Morioka
T
T
Matsushima
K
K
Ikezaki
S
S
Nagata
M
M
Ohta
K
K
Hasuo
M
M
Fukui
D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D003528:Carcinoma, Adenoid Cystic / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D003937:Diagnosis, Differential; D004388:Dura Mater / Q000473:pathology; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008579:Meningioma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D009369:Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009382:Neoplasms, Unknown Primary / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery