noun
acute pyelonephritis
Medical term for a sudden bacterial infection of the kidney pelvis and kidney tissue, often causing fever, flank pain, and urinary symptoms.
急性腎盂腎炎は、高熱と背部痛を伴うことが多い。
Acute pyelonephritis is often accompanied by high fever and back pain.
尿検査で急性腎盂腎炎と診断された。
I was diagnosed with acute pyelonephritis through a urine test.
Compound of 急性 (acute) + 腎盂 (renal pelvis) + 腎炎 (nephritis). The term is a modern medical coinage using Sino-Japanese morphemes.