A Clinic for Skin and Venereal Disease was created in the Out-Patient Department of the Hospital.

Sigmund Lustgarten was appointed Consulting Dermatologist for the patients on the hospital wards.

Sigmund Lustgarten was the first to give Salvarsan as a treatment for syphilis in the United States.

On Lustgarten’s death, Hermann Goldenberg became the Chief of Service.

Hermann Goldenberg received original allotment of Salvarsan before the drug was released for general use and in treatment of early syphilis.

Walter J. Highman establishes the first dermatopathology section in 1920.

Highman authors the textbook Dermatology, one of the first of its kind.

When Goldenberg retired, Walter Highman and Isidore Rosen became Attendings in Dermatology.

Samuel Peck describes the use of moccasin snake venom for the treatment of bleeding symptoms.

Isidore Rosen organizes the first clinic in America for the systematic treatment of congenital syphilis.

Chargin, Hyman, and Leifer describe a five day treatment for syphilis using large amounts of arsenicals. Other early major dermatologic discoveries at Mount Sinai include the description by Henry Koplik in 1896 of Koplik spots. Jacob Churg and Lotte Strauss described allergic granulomatosis (Churg-Strauss disease) and Louis Silzbach descibed the intradermal testing and skin biopsy for the daignosis of sarcoidosis.

Peck was the first to show data on the use of undecylenic acid, the first available antifungal agent.

On Rosen’s retirement, Peck became the Director of Dermatology, a post he held until 1971.

Peck authors the book Occupation Diseases of the Skin with Louis Schwartz and Louis Tulipan.

Orlando Canizares authors the first of several volumes of Clinical Tropical Dermatology, which became a classic.

On Peck’s retirement, Arthur W. Glick was named Acting Chairman, a position he held for 4 years. Glick published several papers on industrial dermatoses and expanded the dermatologic surgery clinic.

Harry Shatin became the first full-time Chairman of the Department. He integrated the residency programs at Mount Sinai, Elmhurst Hospital, and The Bronx Veterans Hospital.

Raul Fleischmajer was appointed Chairman of the Department. He was the first to measure collagen in a quantitative measure in the skin. He was the first to designate scleroderma a disease of inflammatory origin.

Mark Lebwohl is the first to report cardiac complications in pseudoxanthoma elasticum. He went on to describe new techniques of diagnosing PXE and in elucidating its pathophysiology and helped identify its genetic defect.

Fleischmajer and Altchek describe the ultrastructure and composition of connective tissue in lipoid proteinosis.

Susan Bershad was the first to describe hypertriglyceridemia and isotretinoin.

Mark Lebwohl publishes Atlas of the Skin and Systemic Disease, the first atlas devoted to cutaneous manifestations of systemic disease.

Mark Lebwohl becomes Chairman of the Department. Lebwohl goes on to become an international authority in psoriasis, leading groundbreaking clinical trials in widely used and innovative biologic psoriasis treatments.

Huachen Wei was a pioneer in the use of genistein for the prevention of chemical and ultraviolet light-induced squamous cell carcinoma in 1998.

Mount Sinai researchers describe the use of the TNF-blocker infliximab to treat pyoderma gangrenosum and psoriasis.

Mount Sinai researchers describe the use of the topical immunomodulator imiquimod to treat actinic keratosis. This heralds the use immunostimulatory agents to treat cancerous and precancerous skin lesions.

Mount Sinai researchers describe the use of topical calcineurin inhibitors to treat facial and intertriginous psoriasis.

Dr. Guttman develops the mollecular immune maps of atopic dermatitis (eczema)

Mark Lebwohl elected President of American Academy of Dermatology 2015-16.

Dr. Guttman published the first study suggesting that atopic dermatitis (eczema) is an immune disease, driven by Th2 T-cells, opening the door for the therapeutic development for eczema.

Mount Sinai merges with Continuum Hospital. The Department of Dermatology becomes one of the largest dermatology departments in the country.

Kimberly and Eric J. Waldman endow the department. It becomes the Kimberly & Eric J. Waldman Department of Dermatology.

Approval of the first biologic for eczema patients.

New studies are initiated at Mount Sinai for alopecia areata and scarring alopecia, including with biologic treatments, that are changing the therapeutic landscape of hair loss diseases.

Dr Guttman becomes the system chair at Icahn School of Medicine at Mount Sinai, and the first female chair of a dermatology department in NYC