There are multiple definitions:

1. velopharyngeal insufficiency(English)

   • a common complication after primary palatoplasty
   • MRI
   • Adverse effect, Surgery
   • https://doi.org…acfs.2018.02082

2. visceral pleural invasion(English)

   • BVI, LVI, NSCLC, VI, TNM
   • Oncology, Pulmonology
   • https://doi.org…jss.2013.05.104