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Axillary metastases from an unknown primary source
Abstract:
The appropriate therapeutic approach is considered in patients who present with carcinomatous metastases in the axillary lymph nodes and in whom the site of the primary tumor remains obscure. Eight patients with axillary lymph node metastases are reported, in five of whom the location of the primary tumor could not be established. In three patients the primary growth was ultimately found to be in the adjacent breast. Early death occurred in only one patient, and in this instance the primary site proved to be in the breast. The remaining seven patients have all shown a relatively good prognosis when compared with those in similar series reported in the literature. The conservative policy of using radiotherapy alone for such cases, and the more aggressive approach of blind radical mastectomy of the adjacent breast, are both rejected. Instead, the more conservative sector mastectomy of the upper outer quadrant of the ipsilateral breast is proposed as a diagnostic procedure. Should this, together with general investigation of the patient, fail to detect the primary tumor, therapeutic axillary block dissection followed by radiotherapy is then advocated. If the primary tumor is found in the breast on sector mastectomy, a modified radical mastectomy of the affected breast should be performed and followed by irradiation.
Insights
This study proposes a diagnostic sector mastectomy for obscure primary breast cancer with axillary metastases. This approach offers a better prognosis than aggressive treatments, guiding subsequent therapy effectively.
Area of Science:
- Oncology
- Surgical Oncology
- Diagnostic Procedures
Background:
- Axillary lymph node metastases without a clear primary tumor present a diagnostic challenge.
- Optimal therapeutic strategies for such cases remain debated, impacting patient prognosis.
Purpose of the Study:
- To evaluate a diagnostic and therapeutic approach for patients with axillary lymph node metastases of unknown primary origin.
- To compare the proposed method with existing conservative and aggressive treatment strategies.
Main Methods:
- Retrospective analysis of eight patients with axillary lymph node metastases and obscure primary tumors.
- Proposed diagnostic sector mastectomy of the upper outer quadrant of the ipsilateral breast.
- Subsequent treatment based on diagnostic findings: modified radical mastectomy or axillary block dissection with radiotherapy.
Main Results:
- Five out of eight patients had an obscure primary tumor location initially.
- Three patients were found to have primary breast tumors in the adjacent breast.
- Seven patients demonstrated a relatively good prognosis compared to literature benchmarks.
Conclusions:
- Blind radical mastectomy and radiotherapy alone are deemed inappropriate for this condition.
- Sector mastectomy serves as a valuable diagnostic tool for obscure primary breast cancer.
- A tailored therapeutic strategy based on diagnostic findings improves patient outcomes.