system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Fordyce's spot involves –
assistant
The correct answer is  Diseases of sebaceous glands

Pilosebaceous glands          →       Acne vulgaris, Epidermoid (sebaceous) cyst.
Ectopic sebaceous glands    →   Fordyce's spot, Montgomery's tubercle