Synonym(s)
benign lichenoid keratosis; lichenoid actinic keratosis; lichenoid keratosis; lichen-planus-like actinic keratosis; Lichen planus solitaire; lichen-planus type keratosis; LPLAK; solitary lichen planus
Definition
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Variant of keratosis actinica: In sun-exposed areas, usually solitary, hyperkeratotic, reddish-brownish, macroscopically uncharacteristic flat papules with the histological aspects of a lichen planus.
Manifestation
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Mainly occurring in older women.
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Histology
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S.a. Keratosis actinica. Pronounced interface dermatitis. In addition, the phenomena of actinic keratosis with disordered epithelial structure, focal parakeratosis and polymorphic keratinocytes are found on light-damaged skin.
Differential diagnosis
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Therapy
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S.u. Keratosis actinica.
Literature
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- Al-Hoqail IA et al (2002) Benign lichenoid keratoses with histologic features of mycosis fungoides: clinicopathologic description of a clinically significant histologic pattern. J Cutan catheter 29: 291-294
- Dalton SR et al (2003) Atypical junctional melanocytic proliferations in benign lichenoid keratosis. Hum Pathol 34: 706-709
- Elgart GW et al (2001) Seborrheic keratoses, solar lentigines, and lichenoid keratoses. Dermatoscopic features and correlation to histology and clinical signs. Dermatol Clin 19: 347-357
- Inui S et al (2000) A case of lichen planus-like keratosis: deposition of IgM in the basement membrane zone. J Dermatol 27: 615-617
- Jang KA et al (2000) Lichenoid keratosis: a clinicopathologic study of 17 patients. J Am Acad Dermatol 43: 511-516
- Schepis C et al (2003) The papulokeratotic type of solitary benign lichenoid keratosis. Int J Dermatol 42: 722-723
- Shapiro L et al (1966) Solitary lichen planus-like keratosis. Dermatologica 132: 386-392
- Wolff H et al (1982) Lichenoid keratosis. dermatologist 33: 651-653
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Disclaimer
Please ask your physician for a reliable diagnosis. This website is only meant as a reference.
Prof. Dr. med. Peter Altmeyer
