Lentigo simplex Flashcards
What is lentigo simplex?
Benign cutaneous melanocytic hyperplasia of unknown cause
Does lentigo simplex usually appear on skin exposed to sunlight?
Usually not on skin exposed to sunlight
Does lentigo simplex change in color intensity with variations in sun exposure?
NO
How does lentigo simplex compare to ephelis in color?
DARKER
What population usually has lentigo simplex?
children
What syndrome could multiple lesions of lentigo simplex be associated with?
Peutz-Jeghers syndrome
What is the main histopathologic feature of lentigo simplex?
Increased number of benign melanocytes within the basal layer of epidermis often clustered at the tip of rete ridges
Abundant melanin is observed in what cells in lentigo simplex?
Melanocytes and basal keratinocytes
What is melanin incontinence?
melanophages in papillary dermis
What tx is necessary for lentigo simplex?
No Tx is reqd.
Is there malignant transformation of lentigo simplex?
NO
