Benign Tumors and Cysts
摘要
The designation of benign tumors and cysts follows their mayor tissue component, which may be epidermal, fibrous, fat, vascular tissue, or mast cells. The proliferation rate and the potential of malignant degeneration are very low in most of the lesions. Cysts are sometimes septated cavities with or without (pseudocysts) a mantle, containing fluid or sometimes organoid structures (hair).