This central necrosis leads to the gross characteristic of extrusion of cheesy material from the ducts with pressure (comedone-like).
中央坏死导致肉眼下特征性干酪样物质受压从导管内溢出（呈粉刺样）。
2
Although topical retinoids are effective in normalizing keratinization, preventing comedone formation, and improving penetration of other topical agents, they do not possess antimicrobial properties.