The authors refer a case report of the Peutz-Jeghers tumour localised in transverse colon found during a systematic clinical examination of the 4-day-old newborn, without any signs of intestinal occlusion. The end-to-end colic resection was made. Post-operative course was without any complications. The observation is rarely due to the tumour's atypical localisation as well as its presence in the newborn.