Neurofibromatosis Type 1
This very unfortunate woman has Von Recklinghausen's Disease, aka NF-1. Despite the obvious neurofibromas (which buttonhole, as you remember) we also see axillary freckling/pigmentation, which we know as Crowe's Sign. We should also examine the eyes, and would expect to see Lisch Nodules; we would also expect to see cafe au lait patches (6 or more). We could image them, looking for optic gliomas and would also expect a family member to have the disease (as it is inherited as an autosomal dominant disease), as well, although 50% of cases are spontaneous, i.e. not inherited.