Horseshoe kidney

Japanese: 馬蹄腎 - ばていじん（英語表記）horseshoe kidney

A congenital abnormality in which the left and right kidneys are fused at the bottom, forming a horseshoe shape. It is the second most common kidney malformation after duplication of the renal pelvis, occurring in 1 in every 500 to 2000 people. There are various types of fused kidneys, but the horseshoe shape is the most common. Although it is often asymptomatic, it is often accompanied by hydronephrosis, stones, and pyelonephritis. It can also cause chronic dull abdominal pain, lower back pain, constipation, and diarrhea. A condition accompanied by these symptoms is also called horseshoe nephropathy.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

左右の腎臓が下部で融合してしまい，馬蹄形をしている先天異常。腎臓の奇形では重複腎盂に次いで多く，500～2000人に1人の割という。種々の融合腎があるが，馬蹄形が最も多い。無症状のことも多いが，しばしば水腎症や結石，腎盂腎炎を合併する。慢性の腹部鈍痛，腰痛，便秘，下痢などの原因となることもある。これらの症状を伴うものを馬蹄腎症ともいう。

出典　ブリタニカ国際大百科事典小項目事典ブリタニカ国際大百科事典小項目事典について　情報

<<: Hadith - Hadith (English spelling)

>>: Khadija bint Khuwaylid