Pineal yolk sac tumor: correlation between neuroimaging and pathological findings.
A 17-year-old boy presented with somnolence and mental confusion. Physical examination demonstrated motor disturbances. Laboratory investigation showed elevated levels of alpha-fetoprotein in serum and cerebrospinal fluid. The CT scan revealed a heterogeneous mass at the pineal region. At the MRI, this lesion was hypointense on T1 and hyperintense on T2-weighted images, enhancing after contrast administration. The patient underwent a surgical biopsy, which defined the diagnosis of yolk sac tumor. We emphasize the correlation of neuroimaging and pathological findings of this rare pineal region tumor.
Davaus
Taísa
T
School of Medicine, Universidade Federal Paraná, Curitiba, PR, Brazil. taisadavaus@hotmail.com
Gasparetto
Emerson L
EL
Carvalho Neto
Arnolfo de
Ad
Jung
Juliana Elizabeth
JE
Bleggi-Torres
Luiz Fernando
LF
D000293:Adolescent; D001706:Biopsy; D001932:Brain Neoplasms / Q000473:pathology*; D018240:Endodermal Sinus Tumor / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010870:Pineal Gland / Q000473:pathology*