Limb volume
lymphedema, Lymphoma
LYMPHEDEMA, LYMPHOMA
An inelastic flexible soft ruler was used to measure the circumference at five positions on the flat wrist crease, 0 cm, 10 cm, 20 cm, 30 cm, and 40 cm on the wrist crease. The upper limb was divided into four truncated cones, and the measured value was accurate to 0.1 cm. The upper arm volume was calculated using the formula:According to the International Society of Lymphoma, a volume difference of 10% or more was defined as lymphedema, < 20% as mild lymphedema, 20%–40% as moderate lymphedema, and >40% as severe lymphedema.