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Melanoma of the nail unit most often starts as a narrow brown to black pigmented band, visible on the length of a single nail plate (melanonychia). It is most prevalent in the nail of the thumb or big toe. It is not easy to differentiate from a benign lentigo or naevus (mole) in its early stages.
2 sty 2024 · It usually appears as a dark, vertical (top to bottom) streak on your nail. Subungual melanoma is rare but serious. This type of skin cancer — called acral lentiginous melanoma — is an aggressive form of melanoma. Unlike other skin cancers, subungual melanoma isn’t linked to sun exposure.
30 maj 2024 · A dark band or streak that indicates subungual melanoma can look like a bruise under the nail, so it may be mistaken for an injured nail. However, a bruise will go away, while a dark streak caused by subungual melanoma will stay and may even grow.
Melanoma of nail unit images. Authoritative facts from DermNet New Zealand.
27 paź 2022 · A cancerous toenail is a type of malignant melanoma that developes within the nail’s internal tissues. Learn the signs and symptoms of toenail melanoma, as well as the causes, diagnosis, treatment, and survival rate.
18 mar 2024 · Summary. Subungual melanoma is a rare type of skin cancer that occurs under the nails. Symptoms include streaks on the nails, color changes in or around the nail, a bruise under the nail that...
Subungual melanomas usually appear as a brown or black streak under the nail. 3,4 Typically, these streaks gradually increase in size and are usually larger than 3mm. 1 Unlike nail infection or trauma to the nails, subungual melanoma typically affects one nail at a time. 3,4
