Figure 4From: Keratinocytic epidermal nevus syndrome with Schwann cell proliferation, lipomatous tumour and mosaic KRAS mutationSanger sequences showing the c.35G > A (p.Gly12Asp) mutation (in yellow) in theKRASgene in the skin sample, in the tumor sample with concentric intraneural Schwann cell proliferation and in the lipoma sample. This mutation was not present in the blood sample from the patient.Back to article page