What does reticular mean in dermatology?

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The pigmented network or reticular pattern and streaks are important diagnostic clues, representing a dermoscopic hallmark of melanocytic lesions, which is independent of their biologic behavior. 24. The reticular pattern appears as a grid of thin brown lines over a diffuse light-brown background.

Is nevus benign or malignant?

A benign (not cancer) growth on the skin that is formed by a cluster of melanocytes (cells that make a substance called melanin, which gives color to skin and eyes). A nevus is usually dark and may be raised from the skin. Also called mole.

What are the different types of nevus?

Common types of nevi

Congenital nevus. A congenital nevus is a mole that you’re born with.
Common nevus. A common nevus is a smooth, round mole that’s all one color.
Dysplastic nevus. Dysplastic nevus is another name for an atypical mole.
Blue nevus.
Miescher nevus.
Unna nevus.
Meyerson nevus.
Halo nevus.

What does reticular pattern mean?

The reticular appearance refers to a collection of innumerable small linear opacities that together produce an appearance resembling a “net”. The pattern can be fine, medium or coarse. Fine and medium patterns are shown here. Reticular patterns represent interstitial lung disease.

What is a reticular pattern skin?

Livedo reticularis (LR) is a skin symptom. It refers to a netlike pattern of reddish-blue skin discoloration. The legs are often affected. The condition is linked to swollen blood vessels. It may get worse when the temperature is cold.

What is the difference between a mole and a nevus?

Your skin is the largest organ in your body. Skin moles (a “nevus” or “nevi” are the medical terms) are growths on your skin that range in color from your natural skin tone to brown or black. Moles can appear anywhere on your skin or mucous membranes, alone or in groups.

What causes nevus?

Congenital nevi are thought to be caused by a genetic mutation, called a sporadic mutation, which develops randomly as a baby grows in the womb. The condition is not inherited.

What is the difference between mole and nevus?

A mole (nevus) is a non-cancerous (benign) skin lesion that is made up of the color-producing (pigment-producing) cells of the skin (melanocytes). A mole that is present at birth is referred to as a congenital nevus. A dysplastic nevus (discussed elsewhere) is a mole in which unusual (atypical) growth is noted.