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The Mount Sinai Medical Center
234 East 85th Street 2nd Ave 5th Floor
New York, New York 10028
Tel: 212.731.3311


Schweiger Dermatology Group
1727 Broadway, 2nd Floor
New York, New York 10019
Tel: 212.489.6669

Mohs Micrographic Surgery

Mohs micrographic surgery is utilized to treat skin cancers located on cosmetically sensitive areas of the body, particularly the face. Mohs is also used for high-risk, complex and recurrent cancers. When compared to any other modality available for skin cancer removal, Mohs micrographic surgery offers the highest cure rate.

Mohs is the only method that evaluates 100% of the surgical margin. The physician uses a microscope to trace the cancer down to its roots. This technique allows the surgeon to identify and remove the entire cancer and leave behind only normal, healthy tissue. This is an advanced surgical procedure where the physician functions as the oncologic surgeon, the pathologist and the reconstructive surgeon.

Question: Why should I have Mohs surgery as opposed to a traditional excision in the operating room?


  • Superior cure rate
  • Maximal tissue conservation and likely smaller scars
  • No need for general anesthesia
  • Low cost relative to surgery in hospital operation room

Question: Will I have pain after Mohs surgery?

Answer: Most patients do not have pain. If a patient is uncomfortable, we recommend taking two Tylenol every four to six hours.

Question: Will I have bleeding after surgery?

Answer: Bleeding rarely occurs after surgery. If bleeding occurs, it is easily stopped by firm pressure and electro-cautery.

Question: Are there any complications with Mohs surgery?

Answer: Major complications are rarely seen after Mohs surgery. However, swelling and bruising are very common. Allergic reactions to adhesive tape are also very common. They usually occur after day 2 and are controlled with topical steroid creams. Infections are rare. Should one occur, it is most often after day 5 and is controlled with antibiotics.

Question: My eyelids are swollen shut and bruised after surgery, is that normal?

Answer: It is extremely common to have bruised and VERY swollen eyelids after Mohs surgery. This is often the case when one operates on the forehead, scalp and nose. Bruising usually lasts between 7 – 12 days. Arnica tablets may help with the bruising. You should sleep elevated with multiple pillows so that your head is above the level of your heart. You should ice the treated area for the first 24 hours with a bag of frozen peas.

Question: What should I NOT do after surgery?

Answer: Avoid physically strenuous activity, heavy lifting or exercising for 2 weeks after surgery.

Question: How should I care for the wound when I go home?

Answer: You will initially have strips on the wounds; you do not need to apply anything on top of them. You may shower with the strips and should keep the area clean. My staff and I will discuss wound care instructions with you in depth depending on your procedure. You will also receive written instructions prior to leaving.

Question: How long will it take for the wound to heal?

Answer: Healing time varies and depends on the patient’s medical history. Healing time also depends on the method used to close the defect:

  • Stitches (usually 2 – 3 weeks)
  • Skin graft or flap (usually 3 – 8 weeks)
  • Granulation (usually 4 – 12 weeks)

Question: When do I need to return to your office?

  • Suture removal, 7-10 days following a procedure on the face or neck; 14 days following a procedure on the body or extremities
  • All patients are advised to schedule a 3-month post-operative follow-up appointment with our practice
  • After the wound has healed, patients should return to their referring physician for their annual skin cancer screenings

Question: How should I prepare for the procedure?

  • Eat a good breakfast in the morning and take your regular medications
  • Avoid aspirin-containing products or ibuprofen/NSAID- containing compounds 7 days prior to the surgery
  • Avoid alcoholic drinks the night before the surgery
  • Come in comfortable clothing
  • Bring reading material, an IPad, a laptop, DVD player, etc. to keep yourself occupied between the Mohs stages

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Patient Reviews

Dr. Khorasani removed a melanoma from my arm and a basel cell from my neck which was more extensive than originally thought. I was petrified with the melanoma diagnosis even though VERY early stage. He and his staff were beyond comforting...
- Susan O.