Other cell types in the microenvironment of cNF include pericytes, and cellular components comprising the nerve perineurial barrier, but their role is unclear.32 Of note, keratinocytes, melanocytes, and other cells from the skin structures (e.g., sebaceous gland, hair follicle, and eccrine gland) can be found at the margin of cNF but not within the tumor bulk. The gene discussed is NPHS1; the disease is neoplasm.