๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Location
Location
Tumor location can be subdivided into three areas: high risk, medium risk, and low risk (Fig. 29-1). High-risk areas (H) include the โmask areasโ of the face (eyelids, eyebrows, nose, lips, chin, ear, periauricular skin, and temples), genitalia, hands, feet, nail units, ankles, and nipples or areola. Medium-risk areas (M) include the head and neck areas (cheeks, forehead, scalp, neck, and jawline) and pretibial surface. Low-risk
areas (L) include the trunk and extremities, excluding the areas included in areas H and M. Under the appropriate-use criteria, all SCC and BCC (except primary actinic keratosis with focal SCC in situ) are appropriately treated by Mohs if located in the H area. All skin cancers in the M area are considered appropriate, except for small superficial BCCs equal to or less than 5 mm in size and primary actinic keratoses with focal SCC in situ. MMS is typically reserved for larger, recurrent, or more aggressive tumors on L areas.
Figure 29-1. Tumor location can be subdivided into three areas: high-risk (green), medium-risk (purple), and lowrisk (orange) areas. High-risk areas (H) include the โmask areasโ of the face (eyelids, eyebrows, nose, lips, chin, ear, periauricular skin, and temples), genitalia, hands, feet, nail units, ankles, and nipples or areola. Medium-risk areas (M) include the head and neck areas (cheeks, forehead, scalp, neck, and jawline) and pretibial surface. Low-risk areas (L) include the trunk and extremities, excluding the areas included in areas H and M.