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. We report 4 patients with relatively asymptomatic, annular brownish plaques arising in the skin creases.

Axilla; Groin; Lichen planus; Lichenoid eruptions; Skinfold thickness. 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. J Eur Acad Dermatol Venereol.

Usually, mucosae, scalp, and palmoplantar areas are not affected by the disease. To improve our services and products, we use “cookies” own or third parties authorized to show advertising related to client preferences through the analyses of navigation customer behavior.

You can change the settings or obtain more information by clicking here. 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. ABSTRACT Twenty-five year old male patient presenting with asymptomatic brown spots, on cervical, axillary, inguinal and popliteal regions, for the last nine months. Subscriber If you already have your login data, please click here.

It has been suggested that the intensity and speed of onset of the inflammatory response could be modulated by keratinocyte surface liquwn, which could also determine the typical morphology of the lesions of this disease. 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.


Liquen plano pigmentoso sobreimpuesto

From Monday to Friday from 9 a. There is epidermic atrophy with irregular hydropic degeneration on the basal layer and an absence of epidermic hyperplasia usually present ;lano lichen planus. Complete blood counts, liver tests and electrolyte results were all within the normal range.

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

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Si continua navegando, consideramos que acepta su uso. The lesions had remained stable for months despite many topical treatments. This disease evolves with a variable clinical course; in general there is a rapid appearance of hyper-chromic macules, those being the most frequently found lesions and plsno the traditional papules 3 – 9 Pogmentoso cases will resolve in some weeks without therapy, while others may persist for years.

Lichen planus pigmentosus-inversus occurring extensively in multiple intertriginous areas.

Dermatology Online Journal

Similarly to typical lichen planus, there is a compensatory proliferation of those keratinocytes, which do not develop in intertriginous areas. Go to the members area of the website of the AEDV, https: If you planp a member of the AEDV: Cases affecting Asian patients have been more pigmengoso reported and until the present there were not any cases reported on the indexed national medical literature.

The pathogenesis appears to be related to a T lymphocyte-mediated, cytotoxic activity against basal keratinocytes. There were not other lesions either on skin, nails, scalp, or mucosae, nor signs of lymphadenomegaly. 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.


March 07, ; Accepted: SRJ is a prestige metric based on the idea that not all citations are the same. Also of notice is the absence of other dermatological and systemic abnormalities.

Lichen planus pigmentosus inversus

Liquen plano pigmentoeo inverso: Pathological examination showed hydropic degeneration of the basal layer, pigmentary incontinence and moderate inflammatory lymphocytic infiltrate in the dermis. 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.

Subscribe to our Newsletter. The most affected areas were the axillary, inguinal and inframammary regions.

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.

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