Request PDF on ResearchGate | Liquen plano pigmentoso sobreimpuesto. | Lichen planus pigmentosus is an uncommon variant of lichen planus that is. RESU MO. O líquen plano pigmentoso é uma variante incomum de líquen plano e representa um desafio tera- pêutico. Foi realizada a dermoabrasão com boa. Peralta R, Pazos M, Sabban EC, Schroh R, Cabo H. Liquen plano pig- mentoso Liquen plano pigmentoso invertido asociado a virus de hepatitis. C. Arch.

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Go to the members area of the website of the AEDV, https: Larger lesions tend to have a linear or angular conFiguretion, pigmetoso the longitudinal axis following the cleavage lines. J Eur Acad Dermatol Venereol. Anatomopathological exams of the lesions were performed from distinct lquen right and left axillaand repeated on a three-month interval with identical characteristics: It has been suggested that the intensity and speed of onset of the inflammatory response could be modulated by keratinocyte surface markers, which could also determine the typical morphology of the lesions of this disease.

Lichen planus pigmentosus inversus is a rare subtype of lichen planus characterized by hyperchromic, asymptomatic or mildly pruritic macules, measuring from millimeters to centimeters in diameter, with defined borders, affecting intertriginous areas, most commonly in the axillae and groin of Caucasian patients.

Lichen Planus and Lichenoid Disorders. CASE REPORT A twenty-five year old male patient, brown-skinned, informed that for the past 9 months he had noticed the appearance of asymptomatic brown spots, on the cervical region, axillary, inguinal and popliteal folds.

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The most difficult differential diagnosis is with ashy dermatosis, this, however, affects brown skinned patients, with a tropism for the torso and limbs and not for intertriginous areas and with erythematous borders on the edges of active lesions. Subscriber Pigmebtoso you already have your login data, please click here. Cases affecting Asian patients have been more frequently reported and until the present there were not any cases reported on the indexed national medical literature.


Complete blood counts, liver tests and electrolyte results were all within the normal range. Annular plaques in the skin folds: If you are a member of the AEDV: Are you a health professional able to prescribe or dispense drugs? Hugo Rocha Barros, Rua Dr. It presents unique lichenoid histology. Previous article Next article.

There were not other lesions either on skin, nails, scalp, or mucosae, nor signs of lymphadenomegaly. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Liquen plano pigmentoso sobreimpuesto

The patient described here is a young adult male 25 years-oldof brown skin, with extensive non-pruriginous clinical features, affecting several areas axillary, cervical, inguinal and popliteal. Rio Branco, 39 LPPI is a chronic inflammatory affection, occurring in the intertriginous areas of individuals with fair skin. Pathological examination showed hydropic degeneration of the basal layer, pigmentary incontinence and moderate inflammatory lymphocytic infiltrate in the dermis.

The lesions had remained stable for months despite many topical treatments. After four months, without any further treatment, the patient presented with a discreet improvement on the cervical and popliteal regions, whilst axillary lesions remained unaltered.

Subscribe to our Newsletter. All articles are subjected to a rigorous process of revision in pairs, and careful editing for literary and scientific style. It has been suggested that the intensity and speed of onset of the inflammatory response could be modulated by keratinocyte surface markers, which could also determine the typical morphology of the lesions of this disease.

September Pages Services on Demand Journal. The latter, however, appears after sun exposure, and in photoexposed areas, unlike LPPI, which predominates in intertriginous areas. In the year has been indexed in the Medlinedatabase, and has become a vehicle for expressing the most current Spanish medicine and modern. The most affected areas were the axillary, inguinal and inframammary regions.


Histopathology, as in the case reported here, revealed marked pigmentary incontinence and discreet lichenoid infiltrate. We report 4 patients with relatively asymptomatic, annular brownish plaques arising in the skin creases. These data are in accordance with the previously reported cases. Hepatitis C serology was negative.

Similarly to typical lichen planus, there is a pigmentoos proliferation of those keratinocytes, which do not develop in intertriginous areas. From Monday to Friday from 9 a. Lichen planus pigmentosus inversus LPPI is a pigmentary cutaneous manifestation located on skin-fold areas, and considered a rare variant of lichen planus pigmentosus. There is epidermic atrophy with irregular hydropic degeneration on the basal layer and an absence of epidermic hyperplasia usually present on lichen planus.

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Lichen planus pigmentosus inversus

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Gaertner E, Elstein W. On examination, we observed hyperchromic, smooth-surfaced macules, with well-delimited edges, measuring from millimeters to centimeters in diameter and pigmentiso of an oval shape Figures 1 to 3. Lichen planus pigmentosus-inversus occurring extensively in multiple intertriginous areas.

ABSTRACT Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, for the last nine months.