Cases reported "Skin Diseases"

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11/13. Diffuse dermal angiomatosis: a variant of reactive cutaneous angioendotheliomatosis.

    Reactive angioendotheliomatosis (RA) is a rare, benign disease. Affected patients present with self-limited, erythematous to violaceous plaques. The clinical lesions are due to intravascular hyperplasia of cytologically banal endothelial cells in the dermis. We report 2 patients who presented with ulcerated, violaceous plaques on the lower extremities. Both had severe peripheral vascular atherosclerotic disease requiring bypass grafts. Unlike previously described cases of RA, our patient's lesions were due to a diffuse proliferation of endothelial cells in the reticular dermis with only minimal, focal intravascular proliferation of these cells. Positive immunostaining with antibodies to factor viii-related and CD34 antigens adds evidence that the proliferated cells in the dermis were endothelial cells.
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ranking = 1
keywords = angiomatosis
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12/13. Bacillary angiomatosis in an immunocompetent child: the first reported case.

    Bacillary angiomatosis, an infectious process associated with Rochalima spp., was thought until recently to be restricted to hiv-infected or otherwise immunosuppressed patients. In 1993, bacillary angiomatosis was reported in several immunocompetent adults. An extensive literature review failed to find references to bacillary angiomatosis in immunocompetent children. We describe a 6-year-old female who presented with a single, rapidly growing, friable, erythematous papule on her neck. Histologic examination of a biopsy specimen confirmed the diagnosis of bacillary angiomatosis. The patient was otherwise healthy, and her physical examination was normal. Laboratory studies, including hiv serology, were normal. The patient was treated with six weeks of oral erythromycin without evidence of recurrence. We present and discuss the implications of the first case of bacillary angiomatosis in an immunocompetent child.
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ranking = 2.25
keywords = angiomatosis
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13/13. Eruptive epithelioid hemangioendothelioma with spindle cells.

    A 39-year-old white man presented with four discrete dermal nodules in his right upper arm. biopsy revealed superficial dermal well-circumscribed nodules composed of solid areas and vascular spaces lined by epithelioid endothelial cells and a similar nodule composed of spindle and epithelioid cells. A moderate mitotic count of 3-4 mitoses/10 hpf was present. Multiple lesions erupted 1 month later distally and proximally to the original lesions. magnetic resonance imaging of the right arm demonstrated a lesion in the humerus. biopsy of the humerus showed a vascular tumor with similar histologic features to the overlying skin lesions. The differential diagnosis included epithelioid vascular tumors, bacillary angiomatosis, pyogenic granuloma, and Kaposi sarcoma. Vascular lesions containing epithelioid and spindle cells span a spectrum from benign to malignant. We believe these tumors belong in the category of hemangioendothelioma and propose the name eruptive epithelioid hemangioendothelioma with spindle cells. Our case emphasizes that eruptive cutaneous vascular lesions do not always suggest immunosuppression or malignancy. Additionally, it highlights the association between epithelioid vascular lesions of the skin and bone.
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ranking = 0.25
keywords = angiomatosis
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