Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature

Extramammary Paget’s disease (EMPD) is a rare cancer. Although EMPD is usually noninvasive and treated with local therapy, once metastatic the prognosis of EMPD is poor and treatment options are limited. We report a case of a complete response to single agent trastuzumab in a hemodialysis patient wi...

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Main Authors: Peter Barth, Essel Dulaimi Al-Saleem, Kristin W. Edwards, Sherri Z. Millis, Yu-Ning Wong, Daniel M. Geynisman
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Case Reports in Oncological Medicine
Online Access:http://dx.doi.org/10.1155/2015/895151
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author Peter Barth
Essel Dulaimi Al-Saleem
Kristin W. Edwards
Sherri Z. Millis
Yu-Ning Wong
Daniel M. Geynisman
author_facet Peter Barth
Essel Dulaimi Al-Saleem
Kristin W. Edwards
Sherri Z. Millis
Yu-Ning Wong
Daniel M. Geynisman
author_sort Peter Barth
collection DOAJ
description Extramammary Paget’s disease (EMPD) is a rare cancer. Although EMPD is usually noninvasive and treated with local therapy, once metastatic the prognosis of EMPD is poor and treatment options are limited. We report a case of a complete response to single agent trastuzumab in a hemodialysis patient with metastatic Her2/neu overexpressed EMPD of the scrotum. Molecular profiling of his case as well as 12 other EMPD and 8 mammary Paget disease (MPD) cases was completed and revealed multiple biomarker aberrations. Overexpression of Her2 was frequently noted (30%–40%) in both EMPD and MPD patients and when present can be effectively treated with Her2 targeted agents. Trastuzumab therapy can be safely utilized in a hemodialysis patient. In addition, multiple protein overexpression and loss were seen in EMPD including PD-1, PD-L1, PTEN, and AR as well as PIK3CA mutation. These findings may lead to possible therapeutic interventions targeting these pathways in a disease with few effective treatment options.
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institution Kabale University
issn 2090-6706
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language English
publishDate 2015-01-01
publisher Wiley
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series Case Reports in Oncological Medicine
spelling doaj-art-25f8cc45a92f45939061f37b72f6914a2025-02-03T06:13:56ZengWileyCase Reports in Oncological Medicine2090-67062090-67142015-01-01201510.1155/2015/895151895151Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the LiteraturePeter Barth0Essel Dulaimi Al-Saleem1Kristin W. Edwards2Sherri Z. Millis3Yu-Ning Wong4Daniel M. Geynisman5Department of Hematology/Oncology Oncology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USADepartment of Pathology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USADepartment of Radiology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USACaris Life Sciences, Phoenix, AZ 85040, USADepartment of Hematology/Oncology Oncology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USADepartment of Hematology/Oncology Oncology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USAExtramammary Paget’s disease (EMPD) is a rare cancer. Although EMPD is usually noninvasive and treated with local therapy, once metastatic the prognosis of EMPD is poor and treatment options are limited. We report a case of a complete response to single agent trastuzumab in a hemodialysis patient with metastatic Her2/neu overexpressed EMPD of the scrotum. Molecular profiling of his case as well as 12 other EMPD and 8 mammary Paget disease (MPD) cases was completed and revealed multiple biomarker aberrations. Overexpression of Her2 was frequently noted (30%–40%) in both EMPD and MPD patients and when present can be effectively treated with Her2 targeted agents. Trastuzumab therapy can be safely utilized in a hemodialysis patient. In addition, multiple protein overexpression and loss were seen in EMPD including PD-1, PD-L1, PTEN, and AR as well as PIK3CA mutation. These findings may lead to possible therapeutic interventions targeting these pathways in a disease with few effective treatment options.http://dx.doi.org/10.1155/2015/895151
spellingShingle Peter Barth
Essel Dulaimi Al-Saleem
Kristin W. Edwards
Sherri Z. Millis
Yu-Ning Wong
Daniel M. Geynisman
Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature
Case Reports in Oncological Medicine
title Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature
title_full Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature
title_fullStr Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature
title_full_unstemmed Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature
title_short Metastatic Extramammary Paget’s Disease of Scrotum Responds Completely to Single Agent Trastuzumab in a Hemodialysis Patient: Case Report, Molecular Profiling and Brief Review of the Literature
title_sort metastatic extramammary paget s disease of scrotum responds completely to single agent trastuzumab in a hemodialysis patient case report molecular profiling and brief review of the literature
url http://dx.doi.org/10.1155/2015/895151
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