Staging system of melanoma based on depth of skin penetration. 1, above basement membrane; 2, into papillary dermis; 3, at papillary/reticular dermal junction; 4, into reticular dermis; 5, into subcutaneous fat.
InsideSurgery Medical Information Blog
Details of surgical procedures, pathophysiology, signs and symptoms, and treatment of medical diseases,medical and surgical eponyms, and surgeons and surgery in the news