Cancerstage 0 Merkel cell carcinoma in situ Share Tweet Abnormal Merkel cells are found in the top layer of the skin. These abnormal cells may become cancer and spread into nearby normal tissue.Source: NCI Dictionary of Cancer TermsSearch the Glossary of Medical Terms Previous: stage 0 melanoma Next: stage 0 nasal cavity and ethmoid sinus carcinoma in situ NewsletterSign up for the QuackTrack.org newsletter below! Click to commentLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ QuackTrack on TwitterTweets by QuackTrack_org Trending Posts