CAUSES :
1. MALIGNANT
-SECONDARY DEPOSITS
- KAPOSI SARCOMA
- PRIMARY MALIGNANT TUMORS
* SQUAMOUS CELL CARCINOMA
* MALIGNANT MELANOMA
* RODENT ULCER( BASAL CELL CARCINOMA)
* MYCOSIS FUNGOIDES ( CUTANEOUS T-CELL LYMPHOMA )
* XERODERMA PIGMENTOSUM
2, BENIGN
- SEBACEOUS CYST
- SEBORRHOEIC KERATOSIS
- CUTANEOUS HORN
- PYOGENIC GRANULOMA
- ADNEXAL TUMOURS