Embryology of excretory system

By:Dr Kushagra V GragResidentRadio-Diagnosis

DEVELOPMENT OF KIDNEY & URETER

3RD WEEK, DORSAL VIEW & T.S.

3RD WEEK (Approx 24 days), LATERAL VIEW & T.S.

3RD WEEK (Approx 26 days), LATERAL VIEW & T.S.

21 DAYS 25 DAYS

DEVELOPMENT OF KIDNEYS

PRONEPHROS5TH WK

MESONEPHROS

5TH WK 5TH WK

CARNEGIE STAGE 22, Approx 54 DAYS

5TH WK

5TH WK

5TH WK

5TH – 11TH WK

CARNEGIE STAGE 17, Approx 42 DAYS

METANEPHROS

END OF 5TH WK

DEVELOPMENT OF THE RENAL PELVIS, CALYCES & COLLECTING TUBULES OF THE METANEPHROS

7TH WK NEWBORNEND OF 6TH WK6TH WK

5TH WK 5TH-8TH WK

8TH WK

28TH WK FETUS

NEPHROGENESIS

8TH WK

DEVELOPMENT OF URETER

9TH WEEK7TH WEEK5TH WEEK

DEVELOPMENT OF METANEPHRIC EXCRETORY UNITS

MOLECULAR REGULATION OF KIDNEY DEVELOPMENT

ASCENT OF KIDNEYS

POSITIONAL CHANGES & RENAL VASCULATURE

6TH -9TH WK

ACCESSORY (SUPERNUMERARY) RENAL ARTERIES

ACCESSORY (SUPERNUMERARY) RENAL VEINS

CYSTIC KIDNEY DISEASE

AUTOSOMAL RECESSIVE POLYCYSTIC KIDNEY DISEASE

MULTICYSTIC DYSPLASTIC KIDNEY

RENAL AGENESIS

19.5 WEEKS FETUS

ECTOPIC KIDNEYS

PELVIC KIDNEY

CROSSED RENAL ECTOPIA

HORSE SHOE KIDNEY

HORSE SHOE KIDNEY IN A 13-WK FEMALE

FETUS

DISCOID (“PANCAKE”) KIDNEY

SUPERNUMERARY KIDNEYS

MALROTATED KIDNEY

MALROTATION, BIFID URETER, SUPERNUMERARY KIDNEY

PARTIAL/ COMPLETE BIFID URETER

ECTOPIC URETERIC ORIFICE

RETROCAVAL URETER

MEGALOURETER

REFERENCESGRAY’s Anatomy, 40th Edition

The Developing Human: Clinically Oriented Embryology, By MOORE & PERSAUD, 5th Edition

LANGMAN’s Embryology, By T.W.SADLER, 10th Edition

LAST’s Anatomy Regional & Applied, By CHUMMY S. SINNATAMBY, 10th Edition

Clinically Oriented Anatomy, By KEITH L. MOORE, 8th Edition

Clinical Anatomy By Regions, By RICHARD S. SNELL, 8th Edition