Clinical manifestation

Lentigo simplex: asymptomatic, round or oval, uniformly tan-brown to black macule, with jagged or smooth margins; lesions few in number and occurring anywhere on skin or mucous membranes Solar lentigo: most commonly appearing on the face, arms, dorsa of the hands, and upper part of the trunk; stellate-shaped, round or oval, uniformly tan-brown to black macule; slowly increasing in number and in size; lesions sometimes coalesce to form larger patches

Ink spot lentigo: reticulated pattern, resembling spot of ink; limited to sun-exposed areas; single ink-spot lentigo among an extensive number of solar lentigines; PUVA lentigo: persistent, pale brown macule appearing 6 months or longer after the start of PUVA therapy for psoriasis; resembling solar lentigo, but often with more irregular borders which may mimic ephelides; occurrence closely associated with greater cumulative doses of PUVA

Radiation lentigo: resembles sun-induced lentigo, but often has other histopathologic signs of long-term cutaneous radiation damage; considered an indicator of a prior exposure to a large single dose of ionizing radiation

Tanning-bed lentigo: usually occurs in women with history of tanning-bed use; similar to PUVA lentigo Mucosal melanotic macule (labial lentigo; vulvar lentigo; penile lentigo): Labial lentigo almost always on the vermilion of the lower lip and usually solitary and asymptomatic; color ranges from brown to blue to blue-black

Oral lentigo: appears on the gingiva, buccal mucosa, palate, and tongue Penile lentigo: most common sites: glans penis, corona, coronal sulcus, and penile shaft; varies in color from tan to brown to dark brown, with irregular borders and skip areas

Vulvar lentigo: occurs anywhere on the genital mucosa as a mottled, pigmented patch with skip areas

0 0

Post a comment