Study of Renal Posterior Segmental Artery by Corrosion Cast Method

Abstract

BACKGROUND Variations in origin, course and distribution of renal blood vessels are frequent observations. The aim of this study was to observe the pattern of posterior segmental renal artery by corrosion cast method. METHODS Thirty pairs of kidneys were collected from cadavers in anatomy department of Subharti Medical College, Meerut. Corrosion casts of renal arteries were prepared by infusing cellulose acetate butyrate solution through abdominal aorta. They were macerated in conc. hydrochloric acid. Origin, course and distribution of the posterior segmental artery were studied. RESULTS Renal posterior segmental artery most frequently originated as a continuation of the posterior division (93 %). It has no anastomosis with nearby segmental arteries. CONCLUSIONS Posterior segmental artery supplies posterior segment of kidney and may also frequently give origin to apical segmental artery. This study of origin, course, distribution and variations of renal posterior segmental artery will be useful for surgical and radiological practice. KEYWORDS Kidneys, Renal Artery, Anterior Division, Posterior Division, Posterior Segmental Artery, Abdominal Aorta, Corrosion Casts

Comprehensive Study of Arrangement of Renal Hilar Structures and Branching Pattern of Segmental Renal Arteries: An Anatomical Study

“…The incidence of type 4 is higher in a study conducted by Fine and Keen [ 10 ]. Based on the origin of the posterior segmental artery, the incidence of type 1 in our study is 85.8%, which is similar to the study conducted by Kaushik et al [ 8 ] while the incidence of type 2 and type 3 in the present study is 18% and 11%, respectively. Double posterior segmental artery was observed in 2.14% cases in a study conducted by Fine and Keen [ 10 ].…”

“…Below the origin of the superior mesenteric artery, paired RA diverges in a lateral direction from the aorta. Each RA splits into AD and PD, which then split into segmental arteries, which serve different renal vascular segments [ 8 ]. AD gives apical, upper, middle, and lower segmental arteries and supplies the majority of the kidney while the PD gives the posterior segmental artery which supplies the posterior segment of the kidney.…”

“…Contrarily, the veins show free anastomosis that makes it simple to knot them. Understanding the differences between the numerous segmental arteries emerging from RAs gives important clinical data, particularly for surgery and radiography [ 8 ].…”

“…It has been noticed that the arrangement of structures near the hilum frequently varies. There are several published case reports [ 8 , 11 , 12 ] stating that the structure's placement at the hilum varies. However, according to the literature, no systematic study has been done describing the normal and variable anatomy of hilar structures and segmental arteries in the central India population.…”