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Carcinoid tumors in the breast.
J Nalinee Upalakalin1, Laura C Collins, Nicholas Tawa
1Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
American Journal of Surgery
|May 25, 2006
Summary
Carcinoid tumors in the breast are rare and often mistaken for primary lesions. Differentiating metastatic carcinoid from primary breast cancer is crucial for appropriate treatment and avoiding unnecessary surgery.
Area of Science:
- Oncology
- Pathology
- Radiology
Background:
- Carcinoid tumors of the breast are exceptionally rare.
- The majority of breast carcinoid tumors are metastases from other primary sites.
- These metastatic lesions are frequently misdiagnosed as primary breast neoplasms.
Observation:
- A literature review identified 59 cases of breast carcinoid tumors, with 36% being metastatic.
- Three additional cases of metastatic carcinoid tumors to the breast are presented.
- Clinical, radiologic, and pathologic features of these metastatic tumors are discussed.
Findings:
- Accurate differentiation between primary and metastatic carcinoid tumors in the breast is essential.
- Biopsy is recommended for all palpable breast masses and mammographically detected lesions.
- Reviewing patient history and prior surgical specimens can prevent unnecessary mastectomies.
Implications:
- For patients with a known carcinoid history, careful review of clinical data and pathology is vital.
- In the absence of a prior carcinoid diagnosis, a comprehensive work-up for an occult primary tumor is necessary.
- Distinguishing metastatic carcinoid from primary breast cancer impacts treatment strategies and patient management.