A 54-year-old woman, previously in excellent health, noted the insidious development of abundant, thin, and softly textured, nonpigmented hair on her ears and nose. A detailed review of systems was entirely negative, and both a complete blood count and automated routine biochemistry panel were normal. Gynecologic examination, including a pap smear, was normal one year prior to presentation. The patient was a lifelong nonsmoker and nondrinker. Family history was negative for cancer.
From what specific disorder does she suffer?