Skin tumours are abnormal growths of the skin tissue that can be benign (harmless) or malignant (cancerous).

• Benign skin tumours
  • Naevi (moles)
  • Benign vascular tumours and malformations
  • Acrochordon (skin tags)
  • Seborrhoeic keratosis
  • Keratoacanthoma
  • Cysts: epidermoid cyst, milia
  • Others: dermatofibroma, pyogenic granuloma, neurofibroma, lipoma, etc.
• Malignant skin tumours (skin cancers)
  • Primary skin cancers:
    • Basal cell carcinoma
    • Squamous cell carcinoma
    • Melanoma
    • Cutaneous lymphoma
    • Others:  Dermatofibrosarcoma, angiosarcoma, Kaposi’s sarcoma, sebaceous carcinoma, Merkel cell carcinoma, etc.
  • Secondary skin metastasis
    • Metastatic melanoma
    • Metastatic carcinoma
    • Secondary cutaneous lymphoma
    • Leukemia cutis