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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Dermatology Online Journal

There was an absence of lesions on scalp, mucosae and nails in all cases reported. Go to the members area of the website of the AEDV, https: The term lichen planus pigmentosus inversus LPPI was proposed by Pock et al inafter the report of 7 cases of lichen planus pigmentosus located predominantly on intertriginous areas.

J Eur Acad Dermatol Venereol. The etiology is unknown, without any causal relation to medications or sun exposure. Lichen planus pigmentosus-inversus occurring extensively in multiple intertriginous areas.

Lichen planus pigmentosus inversus piigmentoso 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. El LPP-inv es una rara variedad de liquen plano recientemente descrita del que solamente se han comunicado con anterioridad 10 casos.

Anatomopathological exams of the lesions were performed from distinct samples right and left axillaand repeated on a three-month interval with identical characteristics: The main differential diagnoses are erythema dyschromicum perstans, post-inflammatory hyperpigmentation, Figurete erythema, fixed drug eruption and lichen planus pigmentosus. Continuing navigation will be considered as acceptance of this use. September Pages pigmenttoso All articles are subjected to a rigorous process of revision in pairs, liqun careful editing for literary and scientific style.

Liquen plano pigmentoso sobreimpuesto

To improve our services olano products, we use “cookies” own or third parties authorized to show advertising related to client preferences through the analyses of navigation customer behavior. Pathological examination showed hydropic degeneration of the basal layer, pigmentary incontinence and moderate inflammatory lymphocytic infiltrate in the dermis. We report a case with typical clinical features, histology and evolution. He denied the appearance of pigmfntoso cutaneous lesions, pruritus, systemic symptoms, previous diseases or the use of illicit drugs or medications.


Two Japanese cases of lichen pigmemtoso pigmentosus-inversus. ABSTRACT Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, pigmentooso the last nine months. Rio Branco, 39 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.

This disease evolves plsno a variable clinical course; in general there is a rapid appearance of hyper-chromic macules, those being the most frequently found lesions and not the traditional papules 3 – 9 Some cases will resolve in some weeks without therapy, while others may persist for years.

Similarly to typical lichen planus, there is a compensatory proliferation of those keratinocytes, which do not develop in intertriginous areas. These data are in accordance with the previously reported cases. Wickham striae have also been reported. Hugo Rocha Barros, Rua Dr. Larger lesions tend to have a linear or angular conFiguretion, with the longitudinal axis following the cleavage lines.

The pathogenesis appears to be related to a T lymphocyte-mediated, cytotoxic activity against basal keratinocytes. Annular plaques in the skin folds: March 07, ; Accepted: This item has received. How to cite this article. Lichen Planus and Lichenoid Disorders. Liquen plano pigmentoso inverso: The most affected areas were the axillary, inguinal and inframammary regions. Are you a health professional able to prescribe or dispense drugs?

CiteScore measures average citations received per document published. 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. Usually, mucosae, scalp, and palmoplantar areas are not affected by the disease.

Lichen planus pigmentosus inversus LPPI is a pigmentary cutaneous manifestation located on skin-fold areas, and considered a rare variant of lichen planus pigmentosus.


Complete blood counts, liver tests and electrolyte results were all within the normal range. Services on Demand Journal. We report 4 patients with relatively asymptomatic, annular brownish plaques arising in the skin creases.

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It presents unique lichenoid histology. 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. Based on the clinical and histopathological features we reached the diagnosis of lichen planus pigmentosus inversus.

In the superior dermis, there is exuberant pigmentary incontinence, with melanophages and a lichenoid inflammatory infiltrate containing lymphocytes and histiocytes, in a variable pattern, according to the clinical stage of lichenoid regression. Histopathology, as in the case reported here, revealed marked pigmentary incontinence and discreet lichenoid infiltrate. You can change the settings or obtain more information by clicking here.

Hepatitis C serology was negative. There were not other lesions either on skin, nails, scalp, or mucosae, nor signs of lymphadenomegaly. 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.

A case of lichen planus pigmentosus-inversus in a Korean patient. 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. Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, for the last nine months.