# Leser-Trélat sign

> English word · Noun

## Definitions
1. The explosive onset of multiple seborrheic keratoses, sometimes a sign of internal malignancy as part of a paraneoplastic syndrome.

## Etymology
Named after German surgeon Edmund Leser and French surgeon Ulysse Trélat.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/leser-trelat-sign