Lipoma
A large lipoma on the upper arm
Keywords: Arm, Benign fatty tissue tumour, Giant solitary subcutaneous nodule, Posterior upper arm, Soft palpable mass
What is lipoma?
A lipoma is a very common benign, slow-growing tumour of mature adipocytes (fat cells), which grows slowly under the skin in the subcutaneous tissue; rarely, it may expand deep to the fascia or intramuscularly. Single or multiple lesions may occur. Although lipomas may occur anywhere on the body, they most commonly are found on the trunk and upper extremities.
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Source: dermnetnz.org