From the question on page 160

Newly diagnosed von Recklinghausen’s neurofibromatosis (NF-1) in an adult is unusual. Classic findings include café-au-lait spots, axillary freckling, cutaneous neurofibromas and Lisch nodules1 (fig 1A–C of the question). Patients with NF-1 are at risk for tumours in general, particularly neuroendocrine, neuroectodermal and mesenchymal tumours that may involve the gastrointestinal tract.2 …