<prompt> Koeners tumor are seen in?Tuberous sclerosisNeurofibromatosisVHLNF  <response>: Ans. a Tuberous sclerosisRef: Robbins 9thpg 516Ungual fibromas or Koenens tumors are angiofibromas which occur in the lateral nail groove, along the proximal nail fold or under the nail. They are seen in Tuberous Sclerosis 