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The papulokeratotic type of solitary benign lichenoid keratosis
Author(s) -
Schepis Carmelo,
Lentini Maria,
Batolo Dario,
Palazzo Rosaria
Publication year - 2003
Publication title -
international journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 93
eISSN - 1365-4632
pISSN - 0011-9059
DOI - 10.1046/j.1365-4362.2003.01805.x
Subject(s) - acanthosis , pathology , papillary dermis , epidermis (zoology) , medicine , lesion , dermis , nodule (geology) , telangiectases , anatomy , hyperkeratosis , biology , telangiectasia , paleontology
A 67‐year‐old housewife was referred to us for a papulonodular keratotic lesion on the left side of the left eyebrow ( Fig. 1). The lesion had started to develop 6 months earlier and had gradually reached a size of 2 cm in diameter. It was firm, nonitching, and painless on pressure. 1Papulokeratotic lesion on the left eyebrow Histologic examination of a punch biopsy obtained from the reddish edge of the nodule showed a jagged epidermal profile with areas of hyperplasia alternating with areas in which the epidermis was thin. The epidermis showed multifocal acanthosis, diffuse hypergranulosis, and hyperorthokeratosis; only focal hyperparakeratosis was present. The basal layer showed spotty areas of liquefaction degeneration, with superimposed lymphocytic infiltrate, and exocytoses that indented the profile of the dermo‐epidermal junction. Focally, some eosinophilic bodies were present. Keratinocytes with hyperchromatic nuclei were also present in the lower layer of the epidermis ( Fig. 2). 2Histologic examination showing epidermis with acanthosis, hypergranulosis, and hyperorthokeratosis; keratinocytes with hyperchromatic nuclei can also be seen in the lower layer. The papillary dermis shows a band‐like lymphocytic infiltrate (original magnification, × 10) The papillary dermis showed a mostly band‐like infiltrate consisting predominantly of lymphocytes, a few melanin‐poor histiocytes, and very rare eosinophils; telangiectases and solar elastosis were also present.