Cases reported "Dermatomyositis"

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1/27. "Centripetal flagellate erythema": a cutaneous manifestation associated with dermatomyositis.

    We describe 3 patients with dermatomyositis who presented with flagellate erythema. This cutaneous eruption is characterized by erythematous linear lesions on the trunk and proximal extremities. Histologic examination of this eruption in one of our cases revealed an interface dermatitis. review of the literature and records of 183 patients with connective tissue diseases from our institution has shown that this peculiar eruption has been reported only in dermatomyositis. Because of the location of this eruption, we encourage the use of the term "centripetal flagellate erythema" to distinguish this entity from other linear eruptions seen in patients with connective tissue diseases.
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2/27. dermatomyositis associated with invasive thymoma.

    We report a case of dermatomyositis (DM) associated with invasive thymoma in a 22-year-old woman who was admitted to our hospital complaining of dyspnea which required ventilation support. The reddened elevated scaly eruptions were prominent over the extensor surfaces. Chest X-ray and computed tomography showed mediastinal masses, which were diagnosed as mixed type thymoma. Muscle and skin biopsy specimens were compatible with DM. She was treated with methylprednisolone pulse therapy followed by extended removal of the anterior mediastinal tumor and subsequent radiotherapy. She has had a good clinical course without recurrence of thymoma or DM for more than 3 years. The role of thymoma in the development of DM is discussed.
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3/27. dermatomyositis-like eruption and leg ulceration caused by hydroxyurea in a patient with psoriasis.

    We report the case of an elderly woman who had been on hydroxyurea for long-standing widespread psoriasis. After approximately 5 years's treatment with hydroxyurea, she developed a symmetrical dermatomyositis-like eruption on her hands, together with bilateral leg ulceration. Although similar skin eruptions have been reported after long-term hydroxyurea treatment, all of the previous patients were being treated for myeloproliferative disorders. A dermatomyositis-like eruption has not previously been reported to occur as a consequence of hydroxyurea treatment for psoriasis. Its recognition is important to prevent unnecessary investigation or treatment withdrawal.
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4/27. Papules and pustules of the elbows and knees: an uncommon clinical sign of dermatomyositis in oriental children.

    We report two children with dermatomyositis in whom the initial manifestation was a papular eruption on the extensor surfaces of the elbows and knees. In each there was a follicular component to the eruption and one child had pustular lesions. The extensor eruption predated the onset of muscle weakness by 1 year in the first child and by 2 years in the second. Both children had Vietnamese parents. There is some evidence in the literature that Oriental patients may be predisposed to this type of eruption.
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5/27. An unusual presentation of dermatomyositis: the type Wong variant revisited.

    We describe a 53-year-old white woman with dermatomyositis (DM) who had additional clinical findings of pityriasis rubra pilaris (type Wong dermatomyositis) with histopathologic features of both pityriasis rubra pilaris (PRP) and porokeratosis. Type Wong dermatomyositis was originally described in 11 patients by Wong in 1969 and has been reported in 5 additional patients. This is a rarely described phenomenon in which patients with DM develop cutaneous hyperkeratotic lesions that resemble PRP and histologically show follicular hyperkeratosis and hair follicle destruction. Arrector pilorum muscles also show degenerative findings and myositis. We believe that this is the first reported case of a patient with type Wong DM who also has clinical and histologic features suggestive of porokeratosis. This is important because of the association of adult-onset dermatomyositis with internal malignancy and the well-documented association of porokeratosis with immunosuppression. These clinical and histologic findings serve as markers for malignancy in patients with DM. These patients warrant a complete review of systems and investigation for age-appropriate neoplasms as well as close long-term follow-up by dermatologists to ensure that these cutaneous eruptions are not overlooked.
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6/27. Infrapatellar hypertrichosis: an unusual cutaneous manifestation of juvenile dermatomyositis.

    Juvenile dermatomyositis (JDM) is an uncommon inflammatory myopathy with characteristic cutaneous manifestations. Certain clinical features such as cutaneous calcification, lipoatrophy, and generalized hypertrichosis can occur in JDM but are uncommon in the adult form of the disease. We report a young girl who presented with dramatic infrapatellar hypertrichosis along with more classic clinical signs of JDM, including heliotrope periorbital eruption, photosensitivity, and profound proximal muscle weakness. The clinical course was favorable, with improvement of cutaneous and muscular abnormalities after corticosteroid treatment.
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7/27. Peripheral T cell lymphoma presenting as dermatomyositis-like eruption.

    BACKGROUND: There are several conditions reported to mimic the cutaneous manifestations of dermatomyositis, including lymphoproliferative disorders. OBJECTIVE: This case report presents an unusual case of peripheral T cell lymphoma mimicking dermatomyositis and discusses the clinical and pathologic features that distinguish it from dermatomyositis. methods AND RESULTS: A 62-year-old woman presented with a two-month history of a progressive painful cutaneous eruption and interstitial infiltrates on chest x-ray. skin biopsy revealed peripheral T cell lymphoma. The diagnosis was confirmed by lung biopsy. CONCLUSIONS: Although rare, a lymphoproliferative disorder must be included in the differential diagnosis of a cutaneous dermatomyositis-like eruption.
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8/27. dermatomyositis-like eruption after long-term hydroxyurea therapy for polycythemia vera.

    hydroxyurea (HU) is an antitumor agent used to treat chronic myeloproliferative disorders. HU is usually well tolerated, but several cutaneous changes have been reported during long-term HU therapy. Although the occurrence of dermatomyositis-like changes during long-term HU therapy are well known, they are rarely described in patents with polycythemia vera. We report a 69 year-old-male with polycythemia vera who developed a dermatomyositis-like eruption on his face and dorsum of the hands following long-term HU therapy. Despite the cutaneous features, there were no clinical signs of muscular involvement, and muscle specific enzymes were within normal ranges. After interruption of HU administration, the skin lesions disappeared within two months. The improvement following withdrawal of HU implicated this drug as a possible etiological factor in the development of cutaneous features of dermatomyositis in our patient.
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9/27. Multicentric reticulohistiocytosis presenting with clinical features of dermatomyositis.

    Multicentric reticulohistiocytosis (MRH) is a rare disorder with proliferating histiocytes that develop into multinucleated giant cells with "ground-glass" cytoplasm. The disease presents with a rapidly destructive, sometimes permanently debilitating, polyarthritis and a papulonodular eruption, generally of the face and hands. We present 3 cases of MRH in which the initial clinical diagnosis was thought to be dermatomyositis (DM). The cutaneous findings in these cases included an erythematous, predominantly photodistributed macular and papular eruption clinically consistent with DM. However, skin biopsy specimens revealed the diagnosis of MRH. This previously unreported clinical similarity between MRH and DM is significant because the treatment options and future complications vary greatly between the 2 diseases. Thus, it is important to consider the possibility of multicentric reticulohistiocytosis when evaluating a patient with the clinical diagnosis of dermatomyositis.
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10/27. hydroxyurea-induced dermatomyositis-like eruption.

    hydroxyurea is a cytotoxic chemotherapeutic agent used for myelodysplasia. The adverse cutaneous effects due to hydroxyurea include leg ulcers, hyperpigmentation of the skin and nails, a lichen planus-like eruption, lupus erythematosus, and a dermatomyositis-like eruption. We present a case of hydroxyurea-induced dermatomyositis-like eruption and review the features of this entity as previously reported.
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ranking = 1.4
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