Extravascular lipoma over the subclavian vein.

A rare instance of extravascular lipomas located over the subclavian vein in a woman in her early 60s presented unique diagnostic and therapeutic challenges due to their close proximity to critical structures. Lipomas, which are the most commonly occurring benign soft tissue tumours, are typically composed of mature adipocytes. Although lipomas can develop in any region of the body, they are most commonly found in the subcutaneous tissues of the trunk and proximal limbs. Extravascular lipomas, especially those near major blood vessels like the subclavian vein, are extremely uncommon.In this particular case, the tumour was extensively in contact with the right subclavian vein, though there was no intravascular involvement. The lipomatous tumour was successfully excised during surgery, with the subclavian vein and surrounding structures being preserved. Histopathological analysis confirmed the diagnosis of a benign lipoma. This case highlights the significance of early diagnosis, meticulous surgical planning and multidisciplinary collaboration to achieve the best possible outcomes.

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Competing interests: None declared.