Paget's disease of the ectopic breast with an underlying intraductal carcinoma: report of a case

Authors

  • G. F. Kao,

    Corresponding author
    1. Department of Dermatopathology, Armed Forces Institute of Pithology (AFIP), Washington DC; the Veterans Administration Special Reference Laboratory for Pathology at the AFIP; and the School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
      Dr. G. F. Kao, Department of Dermatopathology, AFIP, Washington DC 20306-6000, USA.
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  • J. H. Graham,

    1. Department of Dermatopathology, Armed Forces Institute of Pithology (AFIP), Washington DC; the Veterans Administration Special Reference Laboratory for Pathology at the AFIP; and the School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
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  • E. B. Helwig

    1. Department of Gastrointestinal Pathology, Armed Forces Institute of Pithology (AFIP), Washington DC; the Veterans Administration Special Reference Laboratory for Pathology at the AFIP; and the School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
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Dr. G. F. Kao, Department of Dermatopathology, AFIP, Washington DC 20306-6000, USA.

Abstract

Paget's disease may occur at mammary and extramammary sites. Mammary Paget's disease typically involves the nipple and adjacent skin. Almost all such cases arc associated with an underlying ductal carcinoma of the breast. A case of Paget's disease occurring HI the site of an ectopic breast adjacent to a supernumerary nipple and associated with an underlying intraductal carcinoma is described. A search of the literature revealed no previous report of such cases. Detailed clinical history and histopathologic, histochemical, and follow-up information on this case arc presented. The literature on mammary and extramammary Paget's disease is reviewed.

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