Is Lentiginous compound nevus cancer?
Is Lentiginous compound nevus cancer?
Background: Atypical lentiginous nevus (of the elderly) is a peculiar form of dysplastic nevus. Clinically, this condition can resemble malignant melanoma and histologically, it has a lentiginous pattern with variable degrees of atypia and an absence of dermal nests.
Is mild cytologic atypia cancer?
Conclusion: Cytologic atypia is a marker for increased lung cancer risk. These cytologic changes seem to arise from late events that are most apparent for cancers arising in the central respiratory airways.
What does lentiginous nevus mean?
Background. Speckled lentiginous nevus is a patch of hyperpigmentation that can be seen on any area of the body. This patch contains a variable number of darkly pigmented macules and papules. Some authorities believe that speckled lentiginous nevus is a subtype of congenital melanocytic nevus.
What is Lentiginous compound nevus?
The term lentiginous junctional nevus is used for junctional nevi in which the epidermis has lentigo-like features with elongated and pigmented epidermal rete ridges. In lentiginous nevi, there is typically a proliferation of solitary units and nests.
What causes melanocytic naevi?
What causes melanocytic naevi? A tendency to have multiple melanocytic naevi runs in some families. Sunburn or excessive sun exposure contribute to new moles formation and people with fair skin are more at risk.
Is melanocytic naevus acquired or congenital?
A melanocytic naevus can be present at birth (a congenital melanocytic naevus) or appear later (an acquired naevus). There are various kinds of congenital and acquired melanocytic naevi (American spelling ‘nevi’). Who gets melanocytic naevi? Almost everyone has at least one melanocytic naevus.
What does melanocytic naevi look like?
Melanocytic naevi vary widely in clinical, dermatoscopic and histological appearance. They may arise on any part of the body. They differ in appearance depending on the body site. They may be flat or protruding. They vary in colour from pink or flesh tones to dark brown, steel blue, or black.
What is melanocytic nevus?
Melanocytic Nevus. Melanocytic nevus is a form of skin lesion that appears within the first two decades of life. It originates in the melanocytes (the pigment producing cells) that colonize the epidermis. This disease can appear underneath the skin or on the skin’s surface.
What is the relationship between naevi and melanoma?
People with a greater number of naevi have a higher risk of developing melanoma than those with few naevi, especially if they have over 100 of them. Melanocytic naevi sometimes change for other reasons than melanoma, for example following sun exposure or during pregnancy.
