Flashcards in 3. Horseshoe kidney Deck (12):
MC congenital renal abnormality
horseshoe kidney - definition
interior poles of kidneys fuse abnormally
As they ascend from pelvis during fetal development , horseshoe kidneys get trapped under inferior mesenteric artery and remain low in the abdomen
Horse shoe kidney is associated with
1.hydronephrosis (eg, ureteropelvic junction obstruction),
2. renal stones,
4.chromosomal aneuploidy syndromes (eg,
Turner syndrome; trisomies 13, 18, 21), and
5.rarely renal cancer.
Unilateral renal agenesis - mechanism and definition
ureteric bud fails to develop and induce differentation of metanphric mesnhume --> complete absence of kidney and ureter
Unilateral renal agenesis - definition
complete absence of kidney and ureter
Unilateral renal agenesis - diagnosis
often perinatally via ultrasound
• A 40-year-old man is incidentally found to have fused kidneys on an abdominal CT scan. Name this anatomic abnormality.
• The horseshoe kidney gets trapped beneath the ____ artery.
Inferior mesenteric (and it remains low in the abdomen)
• A girl with a webbed neck, short stature, and a low hairline presents with amenorrhea. What renal anomaly might be found on ultrasound?
Horseshoe kidney (this is Turner syndrome)