What should you know about keratoacanthoma squamous cell?

It often begins as a firm, rounded bump with a central plug or crater of keratin. It may appear on sun-exposed skin such as the face, ears, forearms, or backs of the hands. Its appearance and rapid change can overlap with squamous cell carcinoma, so a clinician cannot reliably distinguish them by appearance alone. Long-term ultraviolet exposure may contribute; see Sun-Damaged Skin for background.

Arrange a dermatology assessment rather than squeezing, cutting, or treating the growth at home. The clinician may examine it with magnification and recommend a biopsy or removal so the tissue can be assessed. Options may include Curettage And Cautery or Surgical Excision, depending on the growth’s size, site, depth, and the clinical impression. Keep the area protected from friction and note when you first noticed it and how quickly it changed.

Seek prompt medical care for a new lump that enlarges quickly, develops a crater, crusts, bleeds, becomes tender, or fails to settle. Seek earlier attention if it is near the eye, nose, lip, ear, or another area where deeper involvement could affect function. Urgent assessment is sensible if bleeding will not stop with gentle pressure or if redness and swelling spread around the lesion.

Ask whether the growth needs a biopsy, which removal method fits its location, how much tissue will be sent for examination, and what wound care will be needed afterward.