There are multiple definitions:

1. oculomotor-tentorial triangle(English)

   • an anatomical window that provides generous access to the upper ventrolateral pontomesencephalic area
   • ACA, AChA, ATA, CM, CN, COT, CS, CTA, DSA, ECA, ICA, MCA, ONP, OZ, PCA, PCP, PIA, RAG, SAH, SPS, STA, SVG, VA, VBI
   • Ophthalmology
   • https://doi.org…018.2.JNS173141

2. over-the-top(English)

   • Practical shorthand
   • https://doi.org…00/miranda.4189