This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skin, Subject name: Pathology
[{'content': 'Koenen tumor seen in - \nSelect and explain. \nA. Neurofibromatosis, B. Tuberous sclerosis, C. Struge weber syndrome, D. Tuberculosis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Tuberous sclerosis Feriuneual fibromas (Koenen's tumors):-Present in 20% of patients of tuberous sclerosis.Develop in adult life.o Small, pink, sausage-shaped growths arising from under the nail folds; may distort the nail plate.", 'role': 'assistant'}]