A patient with rapidly growing axillary masses

Area of Science:

• Oncology
• Dermatology
• Pathology

Background:

• Melanoma is a significant cancer, with approximately 85,000 diagnoses annually in the U.S.
• A small percentage (3.2%) of melanomas are diagnosed without a discernible primary tumor site.
• Melanoma of unknown primary (MUP) site presents a diagnostic challenge.

Purpose of the Study:

• To describe a clinical case of metastatic melanoma with no known primary site.
• To highlight the diagnostic and staging considerations for MUP.
• To emphasize that management is consistent with known primary melanoma.

Main Methods:

• Case presentation of a patient with rapidly growing axillary masses.
• Diagnostic workup to identify metastatic melanoma.
• Staging of the MUP based on established criteria.

Main Results:

• The patient presented with metastatic melanoma in the lymph nodes, with no identifiable primary melanoma.
• The MUP was staged as either Level III or IV.
• This case illustrates a common presentation of MUP.

Conclusions:

• Melanoma of unknown primary site requires careful evaluation and staging.
• Management strategies for MUP are aligned with those for melanomas of known primary site.
• Prompt diagnosis and appropriate staging are crucial for effective patient care.