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Also known as seborrheic verruca, most people will develop at least one seborrheic keratosis during a lifetime. Fortunately, these lesions are benign and don't become cancerous. They are characterized as brown, black or yellow growths that grow singly or in groups and are flat or slightly elevated. Often they are mistaken for warts. Generally, no treatment is required unless the growth becomes irritated from chafing against clothing. However, because it look similar in appearance to precancerous growths (actinic keratosis), your dermatologist will likely biopsy the tissue to confirm the diagnosis.

If a seborrheic keratosis becomes irritated or unsightly, removal is conducted using one of these three methods:

  • Cryosurgery, which freezes off the growth using liquid nitrogen.
  • Curettage, in which the doctor scrapes the growth off the surface of the skin.
  • Electrocautery, used alone or in conjunction with curettage to burn off the tissue and stop the bleeding.

 


 

 

 

Petaluma Office
165 Lynch Creek Way
Petaluma, CA 94954
 M-F, 8:00am-5:00pm
(707) 762-5531
Fax: (707) 762-5976

 

 

Hercules Office
500 Alfred Nobel Dr., Ste. 245
Hercules, CA 94547
M-F, 8:00am-5:00pm
Open Saturday for aesthetic services
 (510) 741-7418
Fax: (510) 741-7456

 

Billing office
510-741-7299
Fax: 510- 741-7493


At Dermatology Associates of the Bay Area, our board-certified dermatologists serve patients at our Petaluma and Hercules offices. We are committed to the highest standards, and we offer a full range of cosmetic, medical, and surgical dermatology procedures, as well as quality skin care products.

Dermatology Associates of the Bay Area
165 Lynch Creek Way | Petaluma, California 94954 | Phone: (707) 762-5531 | Fax: (707) 762-5976
500 Alfred Nobel Drive, Suite 245 | Hercules, California 94547 | Phone: (510) 741-7418 | Fax: (510) 741-7456