Primary malignant melanoma presenting as superior mediastinal mass

Area of Science:

• Oncology
• Medical Case Reports

Background:

• Malignant melanoma constitutes 1.5% of all cancer diagnoses.
• Primary malignant melanoma commonly originates in the skin.
• Approximately 40% of melanomas develop from preexisting nevi.

Purpose of the Study:

• To document an exceptionally rare presentation of primary malignant melanoma.
• To highlight the potential for melanoma to arise in extradermal locations.

Main Methods:

• Case presentation of a patient with a superior mediastinal mass.
• Diagnostic workup including imaging and histopathology.
• Review of relevant literature on extradermal melanoma.

Main Results:

• A diagnosis of primary malignant melanoma was confirmed in the superior mediastinum.
• This presentation is exceedingly rare, challenging typical epidemiological data for melanoma.

Conclusions:

• Primary malignant melanoma can exceptionally present as a superior mediastinal mass.
• This case underscores the importance of considering rare diagnoses in oncology.