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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CiteScore measures average citations received per document published. If you are a member of the AEDV: El LPP-inv es una rara variedad de liquen plano recientemente descrita del que solamente se han comunicado con anterioridad 10 casos. 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. Pemphigus Vegetans in the Inguinal Folds.

Lichen Planus and Lichenoid Disorders. Usually, mucosae, scalp, and palmoplantar areas are not affected by the disease. LPPI is a piigmentoso inflammatory affection, occurring in the intertriginous areas of individuals with fair skin.

There was an absence of lesions on scalp, mucosae and nails in all cases reported. Case report and review of an unusual entity. 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. Are you a health professional able to prescribe or dispense drugs? All articles are subjected to a rigorous process of revision in pairs, and careful editing for literary and scientific style.

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Liquen plano pigmentoso sobreimpuesto

Complete blood counts, liver tests and electrolyte results were all within the normal range. Go to the members area of the website of the AEDV, https: Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, for the last nine months.

SRJ is a prestige metric based on the idea that not all citations are the same. The most affected areas were the axillary, inguinal and inframammary regions. Subscribe to our Newsletter. From Monday to Friday from 9 a. Lichen planus pigmentosus-inversus occurring extensively in multiple intertriginous areas. It presents unique lichenoid histology. Show more Show less. 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 plamo.

The pathogenesis appears to be related to a T lymphocyte-mediated, cytotoxic activity against basal keratinocytes.

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. Similarly to typical lichen planus, there is a compensatory proliferation of those keratinocytes, which do not develop in intertriginous areas. This item has received. There is epidermic atrophy with irregular hydropic degeneration on the basal layer and lisuen absence of epidermic hyperplasia usually present on pigmenhoso planus.

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He denied the appearance of other cutaneous lesions, pruritus, systemic symptoms, previous diseases or the use of illicit drugs or medications. Histopathology, p,ano in the case reported here, revealed marked pigmentary incontinence and discreet lichenoid infiltrate. Hugo Rocha Barros, Rua Dr.

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Lichen planus pigmentosus inversus LPPI is a pigmentary cutaneous manifestation located on skin-fold areas, and considered a rare variant of lichen planus pigmentosus. Gaertner E, Elstein W. There were not other lesions either on skin, nails, scalp, or mucosae, nor signs of lymphadenomegaly. 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.

The latter, however, appears after sun exposure, and in photoexposed areas, unlike LPPI, which predominates in intertriginous areas. Based on the clinical and histopathological features we reached the diagnosis of lichen planus pigmentosus inversus.

Print Send to a friend Export reference Mendeley Statistics. Histological amination revealed an atrophic epidermis with a dermal lichenoid inflammatory infiltrate showing marked pigmentary incontinence.

Dermatology Online Journal

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. In the superior pigmenntoso, 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.

The lesions had remained stable for months despite many topical treatments. Larger lesions tend to have a linear or angular conFiguretion, with the longitudinal axis following the cleavage lines. J Eur Acad Dermatol Venereol.