meaning of vignette

Good afternoon everyone,

I was wondering what would be the best term to translate "vignette" in this medical article.

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they exist. The article ends with the authors' clinical recommendations.

Below is my translation. Any suggestions you may have, will be more than welcome! Thanks in advance.

[FONT='Calibri','sans-serif']Esta publicación comienza con un caso viñeta que destaca un problema clínico común. Se presenta evidencia que sustenta varias estrategias, seguida de una revisión de las pautas formales, cuando existen. El artículo finaliza con las recomendaciones clínicas del autor.[/FONT]