释义 |
Clark level Clark lev·'el (klahrk), the level of invasion of primary malignant melanoma of the skin; limited to the epidermis, I; into the underlying papillary dermis, II; to the junction of the papillary and reticular dermis, III; into the reticular dermis, IV; into the subcutaneous fat, V. The prognosis is worse with each successive deeper level of invasion.Clark lev·el (klahrk lev'ĕl) The level of invasion of primary malignant melanoma of the skin; limited to the epidermis, I; into the underlying papillary dermis, II; to the junction of the papillary and reticular dermis, III; into the reticular dermis, IV; into the subcutaneous fat, V. The prognosis becomes worse with each successively deeper level of invasion. Clark, Wallace H., Jr., U.S. dermatopathologist, 1924-1997. Clark level - the level of invasion of primary malignant melanoma of the skin, recorded by Roman numerals I, II, III, IV, V. |