In extremely rare cases, your blue nevus may be malignant. Cancerous nevi may appear as a common or cellular blue nevus but develop at a later age and may start to look like ulcers. They may also have a more nodular or plaque-like form. Blue nevi can appear in many places on the body and are generally isolated.
Can blue nevus become cancerous?
Although most cases of blue nevi are benign, there is a small possibility that a cellular blue nevus can undergo malignant transformation and become a malignant cellular blue nevus (MCBN). Thus, a biopsy of any changing or suspicious lesion should be done.
Is blue nevus harmful?
A common blue nevus is usually benign, remains unchanged throughout life, and does not lead to any complications. In rare situations, a cellular blue nevus may develop into a form of melanoma called a malignant cellular blue nevus.
Is blue nevus melanoma?
Malignant blue nevus is a heterogeneous group of melanomas that are highly aggressive and often lethal, with a propensity for metastasis to the lymph nodes and lungs.
How rare is malignant blue nevus?
In a series of 2455 conjunctival lesions in adults, only 5 (1.5%) of 317 pigmented lesions were found to be blue nevus. Additionally, only 1 (1.6%) of 71 conjunctival melanocytic lesions in children were blue nevi. Likewise, malignant transformation of cutaneous blue nevus into melanoma is very uncommon.
Can a blue nevus appear suddenly?
Sudden change in a pigmented lesion accompanied by the appearance of new lesions is a cause for concern for potential melanoma development. Here we present such a case, diagnosed as eruptive blue nevi in a young woman. This case highlights the importance of dermoscopy for the diagnosis of this rare phenomenon.
Can you remove a blue nevus?
In most cases they are best left alone. If you feel it is unsightly or is irritated by your clothing, comb, razor, it can be removed to prevent future irritation from occurring. Usually the removal would leave a small scar. In some cases removing a blue nevus requires surgical excision with stitches.
What does a blue dot on your skin mean?
They’re formally called congenital dermal melanocytosis. These marks are flat and blue-gray. They typically appear on the buttocks or lower back, but may also be found on the arms or legs. They’re generally present at birth or develop soon after. These birthmarks are noncancerous and present no health danger.
What is a cancerous mole look like?
Border that is irregular: The edges are often ragged, notched, or blurred in outline. The pigment may spread into the surrounding skin. Color that is uneven: Shades of black, brown, and tan may be present. Areas of white, gray, red, pink, or blue may also be seen.
What moles are cancerous?
Malignant melanoma, which starts out as a mole, is the most dangerous form of skin cancer, killing almost 10,000 people each year. The majority of melanomas are black or brown, but they can be almost any color; skin-colored, pink, red, purple, blue or white. Melanomas are caused mainly by intense UV exposure.
What is a cellular blue nevus?
The cellular blue nevus is a less common lesion but often clinically similar to the common blue nevus. These lesions tend to be large, usually measuring 1-3 cm in diameter. Lesions are elevated, smooth-surfaced papules or plaques that are gray-blue to bluish black in color.
What is a sclerosing blue nevus?
Sclerosing blue nevus is an uncommon variant of common blue nevus and shows an amorphous blue appearance at the edges with a hypopigmented center. Herein we present a 48-year-old female with sclerosing cellular blue nevus with extraordinary clinical and dermoscopic features simulating melanoma.
What is atypical blue nevus?
Blue nevus is a benign melanocytic lesion whose most frequent variants are dendritic (common) blue nevus and cellular blue nevus. Atypical cellular blue nevus presents an intermediate histopathology between the typical and a rare variant of malignant blue nevus/melanoma arising in a cellular blue nevus.
Is Melanoma curable?
Melanoma is the most invasive skin cancer with the highest risk of death. While it’s a serious skin cancer, it’s highly curable if caught early. Prevention and early treatment are critical, especially if you have fair skin, blonde or red hair and blue eyes.
What does nevus look like?
A common mole (nevus) is a small growth on the skin that is usually pink, tan, or brown and has a distinct edge. A dysplastic nevus is often large and does not have a round or oval shape or a distinct edge. It may have a mixture of pink, tan, or brown shades.