Which of the following is not associated with Neurofibromatosis-1?

C. ash-leaf spots are not associated with Neurofibromatosis type 1 (NF-1). Ash-leaf spots are typically associated with Tuberous Sclerosis Complex, not NF-1. The other options—Lisch nodules, axillary freckling, and optic gliomas—are features associated with NF-1.

all of the following are associated with NF-1