Mohs surgery originated as chemosurgery by Frederic E. Mohs in late 1930s. Perry Robins established first dermatology fellowship program at NYU in 1960s
Rare skin cancer occurring in about three people per million population. Most common in Caucasians aged 60-80, twice as common in males. Usually presents as firm nodules or masses up to 2 cm in diameter. Usually found in sun-exposed areas like head, neck, and extremities
Dysplastic nevi differ from common moles in appearance and growth. Most common on trunk in men and calves in women. Lifetime melanoma risk exceeds 10% in Caucasians with dysplastic nevi
cSCC is one of three main types of skin cancer alongside basal-cell and melanoma. Typically presents as hard lump with scaly surface or ulcer. More likely to spread than basal-cell carcinoma. Usually occurs on sun-exposed areas like face, ears, neck, hands
Halo nevus is a mole surrounded by a circle lacking pigment. Typically appears on torso, affecting 1% of White skin population. Average age of diagnosis is 15 years. Usually develops spontaneously and disappears within 10 years
Mohs surgery removes thin layers of skin cancer while preserving healthy tissue. Procedure is used for high-risk skin cancers and those with hard-to-define edges. Most patients can go home after surgery without hospital stay