WordNet

a three-sided polygon (同)trigon, trilateral
something approximating the shape of a triangle; "the coastline of Chile and Argentina and Brazil forms two legs of a triangle"
a percussion instrument consisting of a metal bar bent in the shape of an open triangle
any of various triangular drafting instruments used to draw straight lines at specified angles

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Cerebellar atrophy with Chiari malformation: An example of trans-synaptic degeneration?

Peters J, Ding C, Amukotuwa S, Kempster P.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia. 2019 Nov;69()279-280.
A 23-year old man was found to have a Chiari Type 1 malformation and cerebellar atrophy. While this association has previously been described, the remote cerebellar atrophy is difficult to explain. We believe the answer lies with our finding of signal hyperintensity on MR imaging at the level of the
PMID 31447362

Olivary hypertrophy improved by steroid treatment: Two case reports with unique presentations.

Ohara M, Sanjo N, Hattori T, Oyama J, Hamada M, Ozaki K, Yokota T.
Journal of neuroimmunology. 2019 Sep;334()577003.
Olivary hypertrophy (OH) is the secondary degeneration of the inferior olivary nucleus (ION). It is observed one month after the onset of a primary lesion within the dento-rubro-olivary pathway and is usually associated with oculopalatal tremors. Here, we report two unique cases with rare autoimmune
PMID 31306854

Hypertrophic Olivary Degeneration after Gamma-knife Radiosurgery for Pontine Metastasis

SHINOHARA Yuki,KINOSHITA Toshibumi,KINOSHITA Fumiko,OGAWA Toshihide
Magnetic resonance in medical sciences : MRMS 11(4), 299-302, 2012-12-01
We present a case of a 57-year-old woman who underwent gamma-knife radiosurgery (GKRS) for pontine metastasis. Magnetic resonance (MR) imaging 2.8 months after GKRS showed T2 hyperintensity and hypert …
NAID 10031145230