Multiple lymphadenopathy as an initial sign of extramammary Paget disease

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  • Multiple lymphadenopathy and nodal metastasis in EMPD

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Extramammary Paget disease (EMPD) often develops in external genitalia. Paget cells can, however, adopt an invasive phenotype and metastasize to regional lymph nodes and beyond, leading to poor patient outcomes. Based on this clinical observation, multiple lymphadenopathy may represent an initial sign of EMPD. To address the potential significance of multiple lymph node swelling in EMPD, we report two patients with cutaneous primary EMPD who showed multiple lymphadenopathy as an initial sign during the clinical course of the disease as well as tumour metastasis. Significantly, marked lymphatic vessel growth was observed in regional lymph nodes that underwent massive tumour cell invasion. Therefore, nodal lymphangiogenesis may promote tumour cell invasion and metastasis to distant organs, including the lymph nodes, emphasizing the clinical relevance of multiple lymphadenopathy.

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