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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Annals of surgical oncology 5 (1998), S. 248-252 
    ISSN: 1534-4681
    Keywords: Epitrochlear ; Lymph node ; Lymphoscintigraphy ; Metastasis ; Melanoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: The incidence of epitrochlear lymph node metastasis for patients with melanomas on the hand or forearm is disputed, and management guidelines for these nodes are unclear. Methods: The records of 13,139 consecutive melanoma patients were reviewed to document the incidence of metastatic disease in epitrochlear nodes. The frequency of direct lymphatic drainage to epitrochlear nodes was determined for 109 patients with melanomas of the distal upper limb who had undergone preoperative lymphoscintigraphy. Results: Nine of 801 patients (1.1%) with upper limb primary melanomas developed metastatic disease in an epitrochlear node, and one other patient with an occult primary tumor did so. Six of these ten patients underwent elective axillary node dissection at the time of surgery for epitrochlear node disease, and three were found to have metastatic disease in an axillary node. Epitrochlear node metastasis occurred in only two of 83 (2.4%) patients with upper extremity melanoma who underwent therapeutic axillary dissection. Of the 109 patients who underwent lymphoscintigraphy, four (3.7%) demonstrated lymphatic drainage to an epitrochlear node. Conclusions: Epitrochlear nodal involvement from melanoma of the distal upper extremity is rare, and routine epitrochlear node clearance at the time of either elective or therapeutic axillary dissection for upper extremity melanoma is not indicated. However, it is desirable to perform an axillary dissection whenever surgery for metastatic disease in an epitrochlear node is performed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1534-4681
    Keywords: Lymphoscintigraphy ; Retroperitoneal ; Paravertebral ; Sentinel lymph nodes ; Melanoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Preoperative lymphoscintigraphy (LS) with99mTc antimony sulphide colloid is now part of the routine management of patients with intermediate thickness melanoma at the Sydney Melanoma Unit. Over a 13-year period, 1375 patients have been examined using LS, and we have observed many unusual lymphatic drainage pathways, including direct drainage through the body wall to retroperitoneal and paravertebral lymph nodes from the skin of the back. The aim of this study was to determine the incidence of such drainage in the 542 patients who had primary melanoma sites on the posterior trunk. Methods: The lymphoscintigrams performed on these patients were examined for the presence of direct lymphatic drainage through the posterior body wall to sentinel nodes in the retroperitoneal and paravertebral regions. Results: Lymphatic drainage directly through the body wall to such lymph nodes occurred in 14 of these 542 patients. Conclusions: Preoperative knowledge of the presence of this lymph drainage pattern may influence surgical management, and follow-up investigations in these patients can be tailored to ensure that the relevant areas are examined with anatomic imaging or F18-FDG PET scans.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1534-4681
    Keywords: Lymphoscintigraphy ; Melanoma ; Sentinel nodes ; Second-tier lymph nodes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Preoperative cutaneous lymphoscintigraphy (LS) to identify sentinel (first-tier) lymph nodes was performed in 250 consecutive melanoma patients before wide local excision only or wide local excision with sentinel node biopsy. Methods: The location of the sentinel nodes was marked on the overlying skin in all patients. Whether or not tracer was present in second-tier lymph nodes on the delayed scans was recorded for each patient and related to the lesion site at which the tracer had initially been injected. For 100 consecutive patients the rate of tracer movement through the lymphatic channels was compared to the incidence of second-tier drainage. Results: Second-tier nodes were visualized in all patients with melanomas on the leg and thigh, and in almost all patients with melanomas on the forearm and hand, but were seen less often in patients with more centrally located melanomas. There was a significant correlation between the rate of lymph flow and the incidence of demonstrable second-tier drainage. Conclusion: The results suggest that the physiology of the lymphatic system varies depending on the origin of the lymphatic vessel. These findings have important implications for application of the sentinel node biopsy technique in individual patients.
    Type of Medium: Electronic Resource
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