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Multiple benign lichenoid keratoses simulating photodermatoses: evolution from senile lentigines and their
Journal of the American Academy of Dermatology
|August 1, 1985
Summary
Multiple benign lichenoid keratoses evolve from senile lentigines, often mimicking photodermatoses. These lesions resolve spontaneously or with treatment, leading to regression of the original lentigines.
Area of Science:
- Dermatology
- Cutaneous Oncology
Background:
- Benign lichenoid keratosis (BLK) is known to evolve from senile lentigo.
- Spontaneous resolution with regression of the senile lentigo is characteristic of solitary BLK.
Observation:
- A 2-year study identified fourteen patients with multiple BLKs simulating photodermatoses.
- Initial diagnoses for two patients included cutaneous lupus erythematosus or drug-induced photodermatitis.
- All patients presented with multiple BLKs on sun-exposed skin, originating from senile lentigines.
Findings:
- Multiple BLKs arise from preexisting senile lentigines.
- Lichenoid lesions resolve with topical corticosteroids or spontaneously.
- Resolution is followed by partial or complete regression of the underlying senile lentigines.
Implications:
- Multiple BLKs are a common entity that can be misdiagnosed as photodermatoses.
- Recognition of this condition is crucial for accurate diagnosis and management.
- Understanding the evolution from senile lentigo aids in differentiating BLKs from other sun-induced skin conditions.