What causes lentigo Senilis?

Lentigo is primarily caused by sun exposure. The sun’s UV radiation causes skin cells called melanocytes to produce more pigmentation in your skin. This is why people tan, burn, or freckle after spending time in the sun. Over the years, damage from UV radiation can cause pigmentation deposits in your skin.

What are the types of lentigo?

What are the types of lentigo (liver spots)?

  • Lentigo simplex: The the most common type of lentigo. The spots appear on your trunk, arms, and legs.
  • Solar lentigo. This is caused by exposure to ultraviolet radiation from the sun.
  • Ink spot lentigo.
  • PUVA lentigo.
  • Tanning bed lentigo.
  • Radiation lentigo.

What is the difference between a nevus and lentigo?

Partial (segmental) lentiginosis differs from speckled lentiginous nevus (nevus spilus) by occurring on normal skin, in contrast to the background of macular pigmentation seen in speckled lentiginous nevus. Multiple (generalized) lentigines may develop as an eruptive phenomenon in the absence of systemic abnormalities.

Can a solar lentigo turn into melanoma?

Lentigo maligna starts as a brown flat spot with an irregular shape that slowly gets bigger. Eventually the spot may develop into melanoma, a type of skin cancer that begins in the top layer of skin and then invades the underlying skin layer. See your doctor if you notice: A new skin growth.

Is a lentigo a freckle?

What is a lentigo? A lentigo is a pigmented flat or slightly raised lesion with a clearly defined edge. Unlike an ephelis (freckle), it does not fade in the winter months.

What does a lentigo look like?

Both look like a flat or slightly raised brown patch, similar to a freckle or age spot. They have a smooth surface and an irregular shape. While they’re usually a shade of brown, they can also be pink, red, or white.

Is lentigo a macular lesion?

Solar Lentigo: Found on sun exposed areas including the face, dorsum of hands, shoulder and neck, typically appear in white adults and increase in number with advancing age. Soar lentigo usually appear as flat macular lesion like simple lentigo also with even pigmentation.

Is solar lentigo cancerous?

Though freckles and solar lentigines may be mistaken for malignant melanoma, they do not themselves turn into cancer, and thus are benign. However, some people find them cosmetically unappealing, especially on the face.