Concertina Nucleus

A fanciful descriptor for the large, oval nucleus with multiple sharp, transverse lines punctuating the cleared nucleoplasm; concertina nuclei are characteristic of smooth muscle tumours—e.g., leiomyomas of the GI tract and uterus—and may be seen in diverticulosis coli
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.