noun, used as a suffix
Medical suffix attached to body parts or tissue types to name tumors or swellings, e.g., 肺腫 (lung tumor), 骨腫 (bone tumor).
医者は彼の肺に小さな腫を見つけた。
The doctor found a small tumor in his lung.
「骨腫」は骨にできる良性の腫瘍を指す。
'Osteoma' refers to a benign tumor that forms in the bone.
腫瘍 is the general term for a tumor or neoplasm, while 腫 is a suffix used in compound medical terms.
The kanji 腫 is composed of 月 (flesh) and 重 (heavy), suggesting a heavy or swollen flesh condition. The reading しゅ is the on'yomi.