Cases reported "Lichen Planus"

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1/79. Unilateral linear lichen planus with mucous membrane involvement.

    Linear lichen planus is a rare distinctive variant of lichen planus (LP) characterized by a pruritic eruption of lichenoid, violaceous papules in a linear distribution that sometimes assume a Blaschko line pattern. We describe a 33-year-old woman who presented with a 4-month history of a slightly pruritic unilateral linear array of papular lesions on the left side of her neck that were clinically and histologically consistent with linear LP. Two months after the onset of her skin disease she developed typical lesions with a lacy white pattern on the left lateral aspect of her tongue and the left buccal mucosa with a striking predominance for the left side. Clinically the lesions on the patient's neck were similar to lichen striatus or lichenoid epidermal naevus, a variant of linear verrucous epidermal naevus. However, the histological features and the fact that later in the course of her disease the patient developed typical LP of the oral mucosa suggest that this patient has the rare condition of linear LP with unilateral restriction.
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2/79. Lichenoid dermatitis in paraneoplastic pemphigus: a pathogenic trigger of epitope spreading?

    BACKGROUND: In select cases, lichen planus has been observed to be a paraneoplastic condition sometimes associated with paraneoplastic pemphigus, a disease featuring autoantibodies directed against plakin proteins, desmogleins 3 and 1, and a still uncharacterized 170-kd antigen. Epitope spreading describes the phenomenon where underlying chronic inflammation leads to the sequential recognition of new epitopes on self-proteins over time. OBSERVATIONS: Five of 6 patients diagnosed as having paraneoplastic pemphigus had concomitant clinical and histological features of lichen planus. In 1 patient, results of the initial indirect immunofluorescence on rat bladder were negative and only 2 of the 5 antigens were identified by immunoprecipitation. After 1 year of worsening disease, repeated testing confirmed the presence of antibodies directed against all 6 of the implicated antigens, supportive of our hypothesis that epitope spreading may occur in paraneoplastic pemphigus. CONCLUSIONS: lichenoid eruptions may predispose to an early evolutionary stage of paraneoplastic pemphigus. Cell-mediated autoimmunity at the dermoepidermal junction may promote the exposure of self-antigens and the development of subsequent and progressive humoral autoimmunity. As such, paraneoplastic pemphigus may demonstrate epitope spreading in a human, humoral-mediated autoimmune disease.
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3/79. Coexistence of lichen planus and bullous pemphigoid. A immunopathological study.

    A 43-year-old white man presented with a generalized eruption of lichen planus and tense blisters within the lichenoid lesions and also on clinically normal skin. Direct immunofluorescence (IF) studies revealed immunological and histopathological characteristics of lichen planus in the lichenoid lesions and of bullous pemphigoid in the bullous lesions, and indirect IF studies showed that the patient had circulating antibasement membrane antibodies. The coexistence of both disorders may indicate a possible link between the pathology in the junctional zone in lichen planus and the appearance of antibasement membrane zone antibodies and bullous lesions, respectively.
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4/79. lichen planus after HBV vaccination in a child: a case report from nepal.

    vaccination against hepatitis b virus has rarely been associated with lichen planus. We report a case of this kind in a child from nepal. A 12-year-old boy had developed generalized itchy violaceous papules and plaques six weeks after the second dose of hepatitis b virus vaccine. serum HBsAg and HBeAb were negative, but HBsAb was positive. New crops of generalized, similar eruptions developed after the booster dose of vaccine. All the lesions resolved within three months of systemic steroid therapy. There was no recurrence after one year of follow up. awareness of such an association is necessary, especially in children, because vaccination campaigns are increasing.
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5/79. Late onset systemic lupus erythematosus with lichen planus-like eruption and cardiac tamponade.

    A 71-year-old Japanese woman is reported as a case of late onset systemic lupus erythematosus (SLE) with lichen planus (LP)-like eruption and cardiac tamponade. As an initial symptom, our patient had cutaneous lesions clinically and histologically resembling LP, and then the passage of time allowed for the development of additional criteria (lymphopenia, pericarditis) until the diagnosis of SLE could be made. Our case suggests that LP-like eruptions may be one of the unusual variations of late onset SLE and elderly patients with LP-like eruptions should be carefully followed until a final diagnosis can be clearly made.
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6/79. Paraneoplastic pemphigus in association with a retroperitoneal Castleman's disease presenting with a lichen planus pemphigoides-like eruption. A case report and review of literature.

    A 50-year-old man presented with severe mucosal erosions of the lips, oral cavity and perianal area, a lichen planus-like eruption on the trunk and extremities and scaly plaques of the palms and soles. The clinical impression was of Stevens--Johnson syndrome, or paraneoplastic pemphigus (PNP). Histopathology revealed vacuolar interface and lichenoid dermatitis with dyskeratosis and suprabasal acantholytic vesiculation. Direct immunofluorescence showed deposition of IgG in the intercellular space and linear deposition of C3 along the basal membrane zone. Indirect immunofluorescence revealed circulating IgG with intercellular staining of the epithelium of rat urinary bladder. Western blotting demonstrated bands of 250- and 230-kDa antigens. The clinical, histological and immunological features were consistent with the lichen planus pemphigoides variant of PNP. A retroperitoneal hyaline-vascular Castleman's disease was detected and excised. The skin lesions worsened initially after tumour resection but improved gradually, leaving extensive melanosis after cyclosporin and mycophenolate mofetil treatment.
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7/79. lichen planus-like eruption following autologous bone marrow transplantation for chronic myeloid leukaemia.

    A 47-year-old female treated with an autologous bone marrow transplant and cytotoxic chemotherapy developed a lichen planus-like eruption 12 months later. It involved the skin and oral mucosa, with the histological features of a lichenoid graft-versus-host reaction, including satellite cell necrosis. This eruption developed de novo. The eruption resolved with topical betamethasone valerate 0.1% cream despite the ongoing use of the immunomodulatory agent interferon-alpha2b. Such a reaction in an autologous setting has only been described once previously.
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8/79. Lichenoid drug eruption to salsalate.

    Cutaneous lichenoid eruptions can arise as a result of exogenous compound exposures. Pharmaceutical drugs, industrial compounds, and inhaled particles have been implicated as causative agents. To date, there have been no recorded cases of lichenoid drug eruptions (LDEs) caused by clinical use of the nonsteroidal anti-inflammatory drug salsalate. We describe a patient who experienced a lichenoid eruption after the initiation of salsalate for relief of arthritic pain. This eruption emerged after 1 month of therapy with salsalate, persisted for as long as salsalate was administered, and cleared within 3 weeks of discontinuing the medication. LDEs can clinically and histologically resemble idiopathic or classic lichen planus. Integrating drug history, clinical morphology, clinical distribution, and histopathology can aid in the differentiation. As in our patient's case, curative treatment for LDE requires discontinuation of the drug.
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9/79. Lichen planopilaris.

    P, a 20-year-old laborer displayed initial symptoms of the disease in question when he was 10 years old. Initially he had an asymptomatic progressive loss of hair on the scalp. A couple of years later he had mild to moderate pruritis, and the appearance of slate-blue eruptions on the scalp and elsewhere on the body. This resulted in a complete loss of hair on the vault of the scalp, which led him to seek specialist opinion. skin surface examination revealed the presence of grayish-blue acuminate follicular papules, disposed singly and in groups (plaques). The pilo-sebaceous orifices were conspicuously obliterated and filled by keratin plugs. Perifollicular erythema was a predominant feature on the scalp. The lesions were present over the scalp, around the neck, chest, back, axillae, groin and legs. Shiny atrophied scalp skin depicting scarring alopecia mimicking male-type baldness was a salient feature. In addition, it was studded with conspicuous acuminate papules in its center (Fig. 1a). The known nonhairy (glabrous) skin had classic lichen planus lesions (Fig. 1b). Hemotoxylin-eosin stained microsections prepared from typical lichen planus (LP) lesions over the abdomen and those of lichen planopilaris (LPP) of the scalp were simultaneously studied. The former revealed changes in the epidermis comprising of hyperkeratosis, increase in thickness of stratum granulosum, hydropic degeneration of the basal cell layer and band-like lympho-histiocytic infiltrate pressing against and invading the epidermis, while the latter revealed uniform atrophy of the epidermis and vacuolization of basal cells. The hair follicles were dilated and were filled with keratin plugs. In addition to fibrosis of the dermis, pigment laden microphages and lympho-histiocytic infiltrate was prominent. The follicles and the sebaceous glands were absent. However, arrectores pilorum and sweat glands were preserved (Fig. 2a,b).
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10/79. Lichenoid eruption following penicillamine. A case report with some biochemical observations.

    The phenomenon of lichenoid eruptions following medication with antimalarial, anti-arthritis and antibacterial medication is well documented in the literature. We report here the first case to be described as a result of anti-arthritis treatment with penicillamine, together with some biochemical studies of the effect of this compound on the enzyme glucose-6-phosphate dehydrogenase.
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