Here is the full list of non compounded words containing an "sz".

Abszeß - Adoleszenz - Disziplin - Eszett - Faszie - Faszination - Fluoreszenz - Koaleszenz - Konfiszierung - lasziv - Lumineszenz - Obszönität - omniszient - Oszillation - phosphoresziere - Plebiszit - Proszenium - Rekognoszierung - Rekonvaleszent - Szene - viszeral

Most of these actually are of latin origin. My favorite is obviously "Abszeß" - probably the only word in the german language that will show a non compounded co-existence of "sz" and "ß".

It did, 20 years ago ;)

Nowadays it's written Abszess as the e is short.

FWIW, in all of them the "sz" spans a syllable boundary (yes, even "Szene" although I despise the syllabic "S" with a vengeance because it's so awkward).