Katharine Cordova, MD, FAAD

Actinic Keratosis, also known as solar keratosis, is a scaly or crusty lesion on the skin that develops slowly and indicates the presence of sun damage. It is most commonly found on parts of the body frequently exposed to the sun including the bald scalp, face, ears, lips, backs of the hands or forearms, neck, and shoulders.

Actinic keratosis improves just two days after a freezing removal treatment.

Actinic keratoses are considered precancerous and can develop into a type of skin cancer called squamous cell carcinoma. In fact, some 40 to 60 percent of squamous cell skin cancers begin as untreated actinic keratoses.

Because of this, your doctor should be diligent in diagnosing, treating and monitoring actinic keratosis.

Basal Cell Carcinoma, also known as basalioma or basal cell cancer, is the most common type of skin cancer and carries the least amount of risk, though it still requires attention. If caught and treated early, basal cell carcinomas are not likely to be life-threatening, but they do have the potential to cause disfigurement of the skin tissue.

Almost one million new cases of basal cell carcinoma are diagnosed each year in the U.S., and up to 30% of Caucasians may develop basal cell carcinomas in their lifetime.

Basal cell carcinoma can be treated by removing the affected area.

Skin cancer is considered low risk when the affected cells remain clustered in a single group. Both basal cell carcinoma and squamous cell carcinoma are rarely life-threatening. Though it is unlikely to spread to other parts of your body, if left untreated, basal cell carcinoma can move into nearby bone or other tissue.

Basal cell carcinoma typically begins as a small, shiny bump on the face, although it can occur on any part of the body.

Melanoma, the deadliest of skin cancers, only accounts for about 4 percent of all skin cancer cases, but causes about 79 percent of skin cancer deaths.

Melanoma is a cancer of the skin that begins in the melanocytes, which are the cells that produce the pigment melanin. It is the leading cause of cancer death in women 25 to 30 years old and the second leading cause of cancer death in women 30 to 35 years old.

In some cases, melanoma occurs in melanocytes throughout the body, even if those parts have never been exposed to the sun.

Skin cancer is a common concern in the U.S.  Estimates reported by the American Academy of Dermatology suggest one in five people in the U.S. will develop some form of skin cancer. Merkel cell carcinoma is among the rarest forms of skin cancer, wherein estimates by the Skin Cancer Foundation suggest that only one in 130,000 people in the U.S. will be diagnosed with Merkel cell carcinoma. Like melanoma, Merkel cell carcinoma is an aggressive form of skin cancer with a high mortality rate.  As with most potentially aggressive malignancies, early detection is the best way to decrease the risk of death associated with Merkel cell carcinoma. You can learn more about diagnosis and treatment options for Merkel cell carcinoma on this page.

Photo Credit: Academic Dermatology of Nevada

Merkel cell carcinoma is a rare form of skin cancer that arises from Merkel cells, cells that reside deeper in the skin and function to send ‘touch’ signals from outside the skin to the inside of the body.  The diagnosis of Merkel cell carcinoma is ultimately made by an assessment under the microscope after a skin biopsy has been performed.  Skin biopsies are interpreted by dermatopathologists, doctors who specialize in evaluating skin under the microscope.  Dermatopathologists are well equipped to make this diagnosis accurately when skin tissue is submitted in a biopsy specimen.  Unfortunately, when Merkel cells become cancerous, they also become aggressive.  Merkel cell carcinoma can metastasize (spread) quickly, making it one of the most aggressive types of cancer.  While treatment for Merkel cell carcinoma may be successful, even with treatment Merkel cell carcinoma may evade what appears to be disease remission, and recur.

Mohs surgery offers the highest cure rates for all non-melanoma skin cancers. For certain cases of the most common types of skin cancer — squamous cell carcinoma and basal cell carcinoma — the cure rate can be as high as 99 percent.

Mohs surgery is a highly specialized surgical technique used to treat non-melanoma skin cancers in which the surgeon removes all of the visible cancer, plus a small margin of the surrounding healthy tissue and examines it to ensure that all cancer cells have been removed at the time of surgery.

The Mohs surgery technique treats skin cancers by removing all of the visible cancer. Image Source: newhealthadvisor.com

During Mohs micrographic surgery — named after Dr. Frederic Mohs, who first performed it in the 1930s — cancer is removed from the skin layer by layer until all cancerous cells have been removed. This type of surgery is most commonly used for cancers that have a high risk of re-occurrence. This technique allows for complete removal of the skin cancer while minimizing the removal of surrounding healthy skin.

Skin cancer is the most common form of cancer in the U.S. with more than 3.5 million cases diagnosed each year.

Skin cancer is the result of uncontrolled growth of abnormal skin cells that takes place when skin cells suffer DNA damage and then mutate, causing them to multiply rapidly and form malignant (cancerous) tumors. Most skin cancers develop on the visible outer layer of the skin (the epidermis), particularly on sun-exposed areas such as the face, head, hands, arms and legs. They are usually easy to detect with a skin examination, which increases the chances of early diagnosis.

There are different types of skin cancer, each named for the type of skin cell from which they originate. The most common type of skin cancer is basal cell carcinoma. Almost one million new cases of basal cell carcinoma are diagnosed each year in the U.S. Most skin cancers fall into one of three categories:

• Basal Cell Carcinoma
• Squamous Cell Carcinoma
• Melanoma

There are often warning signs that cancer is developing. The most common are pre-cancerous lesions called actinic keratoses that often develop on sun-exposed areas. These tumors replace normal surrounding tissue and generally do not spread to other areas.

Skin cancer is considered low risk when the affected cells remain clustered in a single group. Both basal cell carcinoma and squamous cell carcinoma are rarely life-threatening.

Skin cancer is considered a high risk when cells have invaded surrounding tissues. The third most common skin cancer, malignant melanoma, can be life-threatening if not diagnosed and treated early.

If skin cancer is detected before it has spread to surrounding tissues, the chances of a complete recovery and cure are excellent. High-risk forms of cancer like melanoma require more aggressive treatments.

Suspicious moles should be watched closely, as they might indicate a cancerous growth.

Squamous Cell Carcinoma is a common form of skin cancer that develops in the squamous cells that make up the outer layer of the skin. Although it is usually not life-threatening, it can be aggressive in some cases.

If left untreated, squamous cell carcinoma can grow large or spread to other parts of your body, causing serious complications.

Your dermatologist will be able to examine your skin for signs of squamous cell carcinoma.

Telemedicine, also known as online dermatology, telehealth, or teledermatology, is the use of telecommunications technology to provide care across a distance. This includes using the Internet, cell phones, SMS messaging and even satellites to allow physicians and patients to communicate medical information. This technology has been available for over a decade now, but as it has gotten better and better, telemedicine has now become much more available, easy to use, and secure. If used in the right way, it is one of the best ways that we can improve access to care.

Because dermatology is a very visual field and a specialty in high demand, patient access is often challenged by long wait times. Meeting a dermatologist online can be a great way to provide patients with increased access to skin care. Teledermatology involves the use of real-time video streaming, or more commonly the transmission of still images, pictures, and video in combination with a patient’s medical information collected via questionnaire. Teledermatology can be utilized in many ways including physician-to-physician consultations, triage, follow-up care, and patient education.

Lipomas: Understanding & Addressing Benign Fatty Growths

A lipoma is a benign fatty growth, most often located in the deep aspect of the skin (subcutaneous tissue).  These growths arise from the normal fat cells in our subcutaneous tissue and are benign (non-cancerous).  However, there is a very rare form of cancer called liposarcoma, which is a malignant growth from these fat cells.  Lipomas are relatively common, impacting about 1% of people.  However, researchers suspect that lipoma incidence is significantly underreported.

Looking to improve and recover your skin’s youthful appearance?

As we age, our skin naturally loses collagen and elasticity. At the same time, repetitive movements and expressions can create facial wrinkles. In addition to comprehensive medical procedures, dermatologists also provide a wide range of minimally-invasive, low impact treatments designed to address a number of aesthetic desires to help you look and feel your best.

While many conditions from unwanted hair and tattoos to wrinkles and rosacea may not be physically harmful, they can be uncomfortable and even cause emotional distress. Cosmetic dermatology offers a wide range of cosmetic surgery and non-surgical services focused on giving you the results you want without the pain, worry, and downtime.

Cosmetic dermatology focuses on aesthetic issues such as skin tone and overall appearance.

Laser rosacea therapy is a way to treat a rosacea complexion. One of the most common and effective treatments is the pulsed dye laser (PDL), which targets visible blood vessels and can reduce redness and flushing by destroying the lining of the inflamed blood vessels.

Rosacea on facial skin is treatable with laser rosacea therapy.

Laser treatments work by using specific wavelengths of light to interact with tissue, which can positively affect pigment, blood vessels, hair follicles and moisture in the skin. The result is improved skin tone and texture, as well as the tightening of loose skin.

Lasers can also be tuned to very specific frequencies to perform different tasks and can even be used in surgery to allow doctors to work on a very precise area with less pain, swelling and scarring than traditional surgery.

Cosmetically, lasers can be used for skin resurfacing and to treat such things as acne, wrinkles, rosacea and more.