Patient Question: A pigmented nevus was excised from the face of a 2 year old baby. Pathologic diagnosis: junctional nevus, with a net peripheral and bottom margin of incision, but with more pigmentation at the base of the skin. What does this mean, please? Does it mean it will recur? Liu Mingzhang, Department of Dermatology, Huzhou Central Hospital, replied: Pathology: “Junctional nevus, peripheral and bottom margins are clean” indicates that the nevus has been cut cleanly, and generally there will be no recurrence, as the pathology preparation is a sample preparation, part of the edge of the pathology may not necessarily be observed, and if you find signs of recurrence, consult the doctor in a timely manner. “More pigmentation in the basal layer of the skin” means more pigmentation in the cells of the basal layer, which is not related to recurrence.