患者【かんじゃ】
patient
疾患【しっかん】
disease, illness, disorder, condition, ailment
患部【かんぶ】
affected part, diseased part, wound
患う【わずらう】
to be ill, to suffer from, to worry about, to be concerned about, to have trouble doing ..., to be unable to ..., to fail to ...
急患【きゅうかん】
emergency case