A Unique Dermoscopy Pattern of Solitary Cutaneous Reticulohistiocytosis

Oliveira, Felipe Ladeira de; Nogueira, Letycia Lopes Chagas; Chaves, Gabriel Monteiro de Castro; Muniz, Mariana Daflon Vinhosa; Timbó, Renata Pinto Fernandes; Sasse, Mariana Martins; Meotti, Carolina Degen

doi:10.1155/2013/674896

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…The vascular structures are absent, apart from the latest report of a SCR with arborizing vessels at the periphery mimicking basal cell carcinoma. 2 , 3 …”

Section: Discussionmentioning

confidence: 99%

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Case for diagnosis. Solitary violaceous nodule on the toe

Kieselova¹,

Santiago²,

Amado³

et al. 2018

An. Bras. Dermatol.

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Reticulohistiocytomas represent a group of benign histiocytic dermal proliferations, which occur either sporadically as solitary cutaneous nodules or, when multiple, in association with systemic disease. Due to its nonspecific clinical presentation, reticulohistiocytoma may mimic other benign or malignant skin neoplasms; therefore, in most cases, a biopsy is needed in order to establish the correct diagnosis. The histology is typically characterized by the presence of large histiocytes with abundant eosinophilic cytoplasm with immunohistochemical profile positive for CD68, CD163, and vimentin. The authors report the case of a patient with solitary reticulohistiocytoma with illustrative clinical, dermoscopic, and histologic features.

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“…The vascular structures are absent, apart from the latest report of a SCR with arborizing vessels at the periphery mimicking basal cell carcinoma. 2 , 3 …”

Section: Discussionmentioning

confidence: 99%

“…Due to its uncharacteristic clinical presentation, SCR may mimic other benign lesions (Spitz nevus, xanthogranuloma, pyogenic granuloma, fibrolipoma), and importantly also malignant cutaneous neoplasms (amelanotic melanoma and histiocytic or epithelioid sarcoma), which should always be ruled out by skin biopsy. 1 , 3 …”

Section: Discussionmentioning

confidence: 99%

Case for diagnosis. Solitary violaceous nodule on the toe

Kieselova¹,

Santiago²,

Amado³

et al. 2018

An. Bras. Dermatol.

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“…Dermoscopy of solitary epithelioid histiocytoma, has an auxiliary role in its diagnosis. [ 1 ] There are only few reports of solitary epithelioid histiocytoma in which dermoscopy findings have been described earlier.…”

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confidence: 99%

Dermoscopy of Solitary Epithelioid Histiocytoma of the Scalp

Rout

Chand

Khurana

2022

Indian Dermatology Online Journal

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Solitary nodule of cutaneous reticulohistiocytosis: A case report

Fournier

Shao

Popovic

et al. 2022

J Case Rep Images Pathol

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Introduction: Solitary cutaneous reticulohistiocytosis represents a rare form of benign monocyte/macrophage proliferation. On routine histology, these lesions are typically described as large cells with cytoplasm showing ground glass appearance and giant cells. They grow up to 1 cm in size with rare cases exceeding this size. Case Report: This case report of a 28-year-old male demonstrated a nodule of reticulohistiocytosis measuring 2.2 cm in size. Microscopic features showed a well-demarcated nodule in the dermis with large histiocytes with ground-glass eosinophilic cytoplasm, giant cells, and foamy macrophages in a background of mixed inflammatory cells. Immunohistochemical staining showed positive staining for vimentin, CD68, CD31, with focal and patchy positivity for S100, CD43, and CD45 and negative staining for CD1a, langerin, CD21, CD23, CD30, CD34, ERG, D2-40, AE1/AE3, epithelial membrane antigen (EMA), smooth muscle actin (SMA), myogenin, desmin, SOX10, HMB-45, tyrosinase, and MelanA. Conclusion: The microscopic and immunohistochemical findings are characteristic of this entity but it is important to recognize for proper management and differentiation from other malignant lesions.

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A Unique Dermoscopy Pattern of Solitary Cutaneous Reticulohistiocytosis

Cited by 3 publications

References 10 publications

Case for diagnosis. Solitary violaceous nodule on the toe

Case for diagnosis. Solitary violaceous nodule on the toe

Dermoscopy of Solitary Epithelioid Histiocytoma of the Scalp

Solitary nodule of cutaneous reticulohistiocytosis: A case report

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