Atypical teratoid/rhabdoid tumor (ATRT) arising from the 3rd cranial nerve in infants: a clinical-radiological entity?

Christopher C. Oh, Brent A. Orr, Bruno Bernardi, Maria Luisa Garré, Andrea Rossi, Lorenzo Figà-Talamanca, Giles W. Robinson, Zoltán Patay
2015 Journal of Neuro-Oncology  
A-B. Initial MRI at presentation. a. Axial postcontrast T1-weighted image shows a solid, avidly enhancing lesion at the CN III origin, anterior to the right cerebral peduncle. b. Axial ADC image shows iso-to hypo-intense signal within the mass and moderately increased signal within adjacent brainstem parenchyma, indicating edema. C-D. Follow-up MRI 1 week after presentation. c. Axial postcontrast T1-weighted image and (d.) precontrast ADC image show slight interval growth of the mass despite
more » ... very short follow-up interval. Oh et al. E-F. Follow-up MRI 1 month after presentation. e. Axial postcontrast T1-weighted image and (f.) precontrast ADC image clearly demonstrate interval growth of the lesion, with two new remote foci of abnormal contrast enhancement-one in the right ambient cistern (arrowhead) and one in the olfactory region in the medline (arrowhead)-suggestive of leptomeningeal dissemination. G-H. Follow-up MRI 5 weeks after presentation. g. Axial postcontrast T1-weighted image and (h.) precontrast ADC image show further interval growth of both the primary lesion and the metastatic deposit. Oh et al.
doi:10.1007/s11060-015-1787-0 pmid:26148473 pmcid:PMC4651015 fatcat:5jpzrqd2ofdkzhmxchs7qg6r7y