24-9-2025

APC mosaicism and panel testing depending on polyp count

Maartje Nielsen is a clinical geneticist and researcher at the department of Clinical Genetics in the LUMC, Leiden, the Netherlands. Her clinical and research focus is on heritable forms of colon cancer/ polyposis, and uveal melanoma. She has recently been responsible for the new Dutch guideline on inheritable form of colon cancer and polyposis.

APC mosaicism is the third most common cause of polyposis, especially if there is no family history. In this webinar I will discuss, based on our latest research (under review at gastroenterology, available online) proposed guidelines for APC mosaicism testing and surveillance. Also some challenging clinical cases will be discussed in more detail.

Registration: https://attendee.gotowebinar.com/register/4090342034033087584