[1] Cleveland Clinic. Armpit Lump. Retrieved on the 4th of November, 2025.
[2] Charlotte Lillis. Can itchy armpits be a sign of cancer? Retrieved on the 4th of November, 2025.
[3] Dana-Farber Cancer Institute. Lump in Armpit: Should I Worry? Retrieved on the 4th of November, 2025.