Solid papillary carcinoma of the breast

Area of Science:

• Oncology
• Pathology
• Breast Cancer Research

Background:

• Solid Papillary Carcinoma (SPC) is a rare breast tumor (<1% incidence), predominantly in postmenopausal women.
• Characterized by well-defined nodules, low-grade nuclei, fibrovascular cores, and neuroendocrine differentiation.
• Often misdiagnosed due to morphological similarities with pre-malignant conditions.

Purpose of the Study:

• To present a case of SPC with a focus of invasion.
• To review the literature on SPC diagnosis and management.
• To highlight the importance of immunohistochemistry in differentiating SPC from mimics.

Main Methods:

• Case presentation of a patient with SPC.
• Literature review focusing on diagnostic challenges and immunohistochemical markers.
• Morphological and immunohistochemical analysis.

Main Results:

• The presented case demonstrates SPC with a minor invasive component.
• Immunohistochemistry is vital for distinguishing SPC from other breast lesions.
• SPC generally exhibits a favorable prognosis.

Conclusions:

• Accurate diagnosis of SPC is essential for appropriate patient management.
• Immunohistochemical panels are critical for resolving diagnostic ambiguities.
• SPC, despite mimicry, offers a good prognosis when correctly identified.