Is melanonychia dangerous?

Is melanonychia dangerous?

Melanonychia is a very worrisome entity for most patients. It is characterized by brownish black discoloration of nail plate and is a common cause of nail plate pigmentation. The aetiology of melanonychia ranges from more common benign causes to less common invasive and in situ melanomas.

Is nail melanoma deadly?

Subungual melanoma is rare, but it is deadly if left untreated. One of the biggest challenges with treating subungual melanoma is diagnosing it early and correctly.

Is Melanonychia genetic?

Melanonychia can also be associated with genetic disorders, injury, medications, nutritional deficiency, endocrine disease, connective tissue disease, inflammatory skin disease, a local tumour, or nail infection.

Does melanoma grow out with the nail?

Many people first mistake subungual melanoma as a bruise. However, unlike a bruise, the streaks from subungual melanoma do not heal or grow out with the nail over time.

How do you know if melanonychia is benign?

How to Tell If the Cause Is Benign. Benign longitudinal melanonychia is recognized by the appearance of light to dark brown stripes that are parallel and regular in color, thickness, and spacing. The border will be clearly defined and less than 3 millimeters (mm) in width, or roughly 1/10th of an inch.

What percentage of melanonychia is melanoma?

Roughly two-thirds of cases of nail apparatus melanoma (NAM) are characterized by melanin-derived brown-to-black nail pigmentation, or melanonychia [1].

How common is nail cancer?

Melanoma of the nail unit is rare, accounting for only about 1% melanoma in white-skinned individuals. It arises in people of all races, whatever their skin colour. Although no more common in dark skin than fair skin, it is the most common type of melanoma diagnosed in deeply pigmented individuals.

Does melanoma under nail grow out?

What are the possible side effects of melanonychia?

Complications. Possible complications of melanonychia include nail cancer, bleeding under the nail, splitting of your nail, and deformity of your nail. The nail biopsy can also cause nail deformity because it removes a portion of the nail.

How long does it take for melanonychia to go away?

A few drug treatments might stimulate nail matrix melanocytes to create melanin, producing a band of melanonychia varying in shade from light brown to black color. In drug caused melanonychia, a few nails are typically impacted with several straps. Drug caused melanonychia most typically presents itself four to eight weeks after drug usage.

Where does longitudinal melanonychia start on the nail?

The longitudinal type starts at the cuticle and ends at the free edge of the nail. Longitudinal melanonychia can be a sign of melanoma, being accompanied by the following: There are cases where the entire plate of the nail is affected Periungual pigmentation can be present (this is also known as benign pseudo-Hutchinson sign)

What’s the difference between traumatic and fungal melanonychia?

Traumatic melanonychia generally impacts one nail. Fungal melanonychia is generally found in three to five nails. Fungal melanonychia have some manifestations like racial melanonychia, for example the different tones of brown color, width under four millimeters and frequently take a part in multiple nails.

Complications. Possible complications of melanonychia include nail cancer, bleeding under the nail, splitting of your nail, and deformity of your nail. The nail biopsy can also cause nail deformity because it removes a portion of the nail.

Can a benign melanonychia have parallel lines?

A benign melanonychia may also have parallel bands. They will be more uniform in color and more perfectly parallel, as in the very top image on the left: benign longitudinal melanonychia. Thus, the presence of parallel lines does not automatically mean cancer.

The longitudinal type starts at the cuticle and ends at the free edge of the nail. Longitudinal melanonychia can be a sign of melanoma, being accompanied by the following: There are cases where the entire plate of the nail is affected Periungual pigmentation can be present (this is also known as benign pseudo-Hutchinson sign)

How is subungual melanoma different from longitudinal melanonychia?

After all, a subungual melanoma will remain fixed in place, no matter how much or fast a nail grows. A subungual melanoma WILL get wider, thicker, and often darker, because it’s a mass of proliferating cancer cells. You may see various lines, parallel to the length of the nail, making up the dark band.