In the Clarke's level of tumor invasion of malignant melanoma level 3 refers to:
All tumor cells above basement membrane
Invasion into reticular dermis
Invasion into loose connective tissue of papillary dermis
Tumors cell at junction of papillary and reticular dermis
Clark's level ( on the basis of depth of invasion): EPIRS 1. Melanoma restricting to epidermis & appendages 2. Invading Papillary dermis without filling it 3. Reach Interface of papillary & reticular dermis 4. Invading reticular dermis 5. Invading subcutaneous tissue.
Plastic Surgery and Skin Lesions