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Author Vaghela, V. ♦ Radhakrishnan, N. ♦ Radhakrishnan, V. V. ♦ Menon, R. G. ♦ Kesavadas, C. ♦ Thomas, B.
Source Sree Chitra Tirunal Institute for Medical Sciences & Technology
Content type Text
Publisher Neurology India
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health ♦ Diseases
Subject Domain (in MeSH) Diagnosis ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment
Subject Keyword Radiology
Abstract Papillary tumors of the pineal region are recently described as rare mass lesions with limited literature available on their natural history and imaging features. Magnetic resonance imaging (MRI) including perfusion, diffusion, and spectroscopic features were described in an 18-year-old girl with papillary tumor of pineal region. A well-defined, T1 hyperintense and contrast-enhancing mass lesion was noted in pineal region with few cystic spaces within. Solid portion of lesion showed minimal diffusion restriction with average apparent diffusion coefficient of 0.812 Chi 10 -3 mm 2 /s; on MR spectroscopy elevated myo-inositol peak with reduced N-acetylaspartate and elevated choline in the tumor. On perfusion study there was significantly high relative cerebral blood volume (rCBV) (6-9 times) and relative cerebral blood flow (rCBF). Our findings agree with previous descriptions of cystic areas with T1 hyperintense appearance of this tumor but very high level of tumor perfusion, diffusion restriction, and presence of myo-inositol peak are important imaging findings and may correlate with the recent reports of high tumor recurrence in these cases.
Education Level UG and PG
Learning Resource Type Article
Educational Framework Medical Council of India (MCI)
Journal Neurology India
Volume Number 58
Issue Number 6
Page Count 897
Starting Page 32
Ending Page 928