What causes Lichen Striatus?
The major causes for the growth of malignant melanoma are genetic and environmental. Inordinate exposure to sunlight is the prime factor that is responsible for this. What are the clinical malignant melanoma types? 1. Lentigo – in this type of maligna melanoma, lentigo maligna patches occur; this is responsible for developing a nodule or papule thereby indicating invasive tumor. 2. Superficial spreading – in this malignant melanoma a flat large irregular pigmented lesion grows on the side prior to vertical invasion. 3. Nodular – this type of malignant melanoma is very aggressive. It grows rapidly and the pigmented nodule ulcerates/ bleeds. 4. Acral lentiginous – this malignant melanoma occurs on the sole, palm or nail as pigmented lesions. How to diagnose malignant melanoma? It is quite difficult to diagnose melanoma; however, clinical signs are useful in distinguishing whether it is a malignant or benign mole. If you examine the affected area using epiluminescence microscopy it might