research Pruritic Hyperkeratotic Facial Papules in a 34-Year-Old Woman Diagnosed with Trichostasis Spinulosa 1 citations, December 1997 in “Archives of dermatology” A 34-year-old woman had itchy black bumps on her face due to a condition called trichostasis spinulosa.
research Circle Hairs in a Patient with Multiple Myeloma November 2021 in “Clinical, cosmetic and investigational dermatology” An elderly woman with cancer improved after treatment for a rare skin condition with coiled hairs.