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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Gaertner E, Elstein W.

Pathological examination showed hydropic degeneration of the basal layer, pigmentary incontinence and moderate inflammatory lymphocytic infiltrate in the dermis. El LPP-inv es una rara variedad de liquen plano recientemente descrita del que solamente se han comunicado con anterioridad 10 casos.

Rio Branco, 39 Usually, mucosae, scalp, and palmoplantar areas are not affected by the disease. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which ipgmentoso unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

ABSTRACT Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, for the last nine months. These clinical and pathological features were consistent with lichen planus pigmentosus-inversus, a rare, recently described variant of lichen planus, with only 10 cases reported to date.


On examination, we observed hyperchromic, smooth-surfaced macules, with well-delimited edges, measuring from millimeters to centimeters in diameter and often of an oval shape Figures 1 to 3. Continuing navigation will be considered as acceptance of this use.

Dermatology Online Journal

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. September Pages You can change the settings or obtain more information by clicking here.

Lichen planus pigmentosus-inversus occurring extensively in multiple intertriginous areas. Subscriber If you already have your login data, please click here.

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.

Histopathology, as in the case reported here, revealed marked pigmentary incontinence and discreet lichenoid infiltrate. Are you a health professional able to prescribe or dispense drugs? 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.

Annular plaques in the skin folds: These data are in accordance with the previously reported cases.

Lichen planus pigmentosus inversus

It presents unique lichenoid histology. The lesions had remained stable for months despite many topical treatments. Previous article Next article. Hepatitis C serology was negative.


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.

The etiology is unknown, without any causal relation to medications or sun exposure. Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, for the last nine months. There were not other lesions either luquen skin, nails, scalp, or mucosae, nor signs of lymphadenomegaly.

A case of lichen planus pigmentosus-inversus in a Korean patient. If you are pigmemtoso member of the AEDV: Based on the clinical and histopathological features we reached the diagnosis of lichen planus pigmentosus inversus.

Services on Demand Journal. Pemphigus Vegetans in the Inguinal Folds.

Liquen plano pigmentoso sobreimpuesto

Histological amination revealed an atrophic epidermis with a dermal lichenoid inflammatory infiltrate showing marked pigmentary incontinence. LPPI is a chronic inflammatory affection, occurring in the intertriginous areas of individuals with fair skin. Lichen Planus and Lichenoid Disorders. Wickham striae have also been reported.