This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of sebaceous and sweat glands, Subject name: Dental
Diagnosis? 
Select and explain. 
A. Adenoma Sebaceum, B. Syringoma, C. Milia crystallina, D. Milia profunda
B: Syringoma
Answer: B: Syringoma 
Explanation: Syringomas are harmless eccrine sweat duct tumor(adenomas of intraepidermal eccrine ducts) Adenoma sebaceum - seen in tuberous sclerosis(nose involvement)