6.3.2 Lentigo

Grading & Level of Importance: B

Review:
2022

W. Burgdorf, Munich; J. McGrath, London

Overview:

ICD-11

LC1Y

Definition

General term for small circumscribed macules with increased melanin but no increase in number of melanocytes.  

Aetiology & Pathogenesis

Brown macule on skin or mucosa. 

Signs & Symptoms

Brown macule.

Localisation

Most often hands, face, occasionally mucosa.

Classification

Mucosal lentigo, ephelides (freckles), sunburn freckles, PUVA freckles, genital lentigo, senile lentigo, solar lentigo. 

Diagnosis

Clinical findings; skin biopsy not usually needed. 

Differential diagnosis

Melanocytic naevus, Lentigo maligna and other pigmented skin lesions.

Prevention & Therapy

None required.

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