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. 2023 Jun 21;11:1162654. doi: 10.3389/fped.2023.1162654

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© 2023 Maia, Miranda, Geraldo, Sampaio, Ramaglia, Tortora, Severino and Rossi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Sporadic hypothalamic and optic pathway astrocytoma in a 7-month-old girl presenting with horizontal nystagmus. Axial head CT (A) and axial brain MRI T1WI (B) shows a hypodense and hypointense expansile lesion (hashtags) centered in the suprasellar region, with extension towards the sylvian fissures, mainly on the right (white arrows). Sagittal (C) and coronal (D) T2WI show a T2 hyperintense lesion which is separated from the pituitary gland (white arrowheads) and originating posterior from the optic chiasm, most probably from the right hypothalamus (black arrow in D). The chiasm and optic tracts (right optic tract is pointed out by the black arrowhead in D) are splayed but not overtly infiltrated. There are no optic nerve changes (not shown). Facilitated diffusion is seen on ADC map (E), as well as homogeneous contrast enhancement on sagittal T1WI after gadolinium injection (F).