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Case Reports
. 2021 Jun 8;14(2):784-791.
doi: 10.1159/000515784. eCollection 2021 May-Aug.

Metastatic Prostate Cancer Synchronous with Male Breast Papillary Ductal Carcinoma in situ: Management Dilemma and Literature Review

Harissa Husainy Hasbullah  1   2 , Farah Wahida MdYusof  3 , Amirah Hayati Ahmad  3 , Omar Alzallal  4   5 , Sharifah Emilia T T Sharif  4   5
Affiliations
Case Reports

Metastatic Prostate Cancer Synchronous with Male Breast Papillary Ductal Carcinoma in situ: Management Dilemma and Literature Review

Harissa Husainy Hasbullah et al. Case Rep Oncol. .

Abstract

Prostate cancer is common in men, but tumour of the male breast is rare. For these two tumours to be presented synchronously in a male patient is even rarer. The focus of this paper is the case of a 72-year-old man diagnosed with papillary ductal carcinoma in situ after he presented with a unilateral breast mass associated with nipple discharge. Imaging staging for his breast tumour and subsequent prostate biopsy found an incidental synchronous asymptomatic prostate adenocarcinoma as well as bone metastases. He denies risk factors for malignancies and refuses genetic testing. The first part of our discussion will highlight the uncommon occurrence of male breast ductal carcinoma in situ and its management controversies. The subsequent part of our discussion will focus on the association between male breast cancer and prostate cancer, and implication of this on the future treatment of these patients. More importantly, our case will illustrate the challenges in managing dual primaries that present concurrently.

Keywords: Ductal carcinoma in situ; Male breast; Prostate cancer; Synchronous.

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Conflict of interest statement

The authors have no conflicts of interest to declare.

Figures

Fig. 1
Fig. 1
Histopathology of intraductal papillary carcinoma. Hematoxylin and eosin (H&E) stains demonstrate sheets of mildly pleomorphic tumour cells arranged in a solid papillary architecture (A) with low mitotic activity (B, arrow). C Immunohistochemistry (IHC) with p63 stain showing positive expression of myoepithelial cells at the periphery of the lesion and absent expression along the papillary fronds. D IHC and ER, showing a positive and diffuse expression.
Fig. 2
Fig. 2
CT of the pelvis: locally advanced prostate cancer invading the bladder.
Fig. 3
Fig. 3
Bone scan: bone metastases at the L2 vertebrae, left femur, and pelvic bone.
See this image and copyright information in PMC

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