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The description of the lump indicates it to possibly a collection of fat tissue also called a Lipoma. Other possible causes include a sebaceous cyst or a enlarged lymph node.
Symptoms like persistent fever, weight loss, night sweats along with multiple enlarged, painless lymph âânodes may indicate conditions like lymphoma or cancer.
In case of lipoma, it can be excised with a small procedure, OR in case of a cyst, it can be reduced in size âwith a needle aspiration or removed completely by excising it.
For proper diagnosis, you may need to consult with your doctor, who can treat you accordingly.