12. Relations of Sigmoid Mesocolon | NEET PG, USMLE, FMGE Must-Know скачать в хорошем качестве

12. Relations of Sigmoid Mesocolon | NEET PG, USMLE, FMGE Must-Know

𝐒𝐮𝐛𝐬𝐜𝐫𝐢𝐛𝐞 𝗙𝐨𝐫 𝗠𝐨𝐫𝐞 𝗜𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 𝐨𝐧 𝗛𝐞𝐚𝐥𝐭𝐡 👩‍⚕‍ 𝐚𝐧𝐝 𝗠𝐞𝐝𝐢𝐜𝐢𝐧𝐞💉🩺💊 📌𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺 :   / clinical.learning   The sigmoid mesocolon is a fan-shaped fold of peritoneum that suspends the sigmoid colon from the posterior pelvic wall 📍. It plays a critical role in allowing mobility of the sigmoid colon while housing essential vessels and nerves. The root of the sigmoid mesocolon forms an inverted "V"-shaped line that extends from the left iliac fossa to the level of the third sacral vertebra (S3). Understanding its relations is key for surgeries like sigmoidectomy, colostomy, and assessing causes of volvulus or ischemia. Anteriorly, the sigmoid mesocolon is related to the loops of small intestine, particularly the ileum, which may overlie it and obscure its surface during surgical exploration. Posteriorly, it is related to important retroperitoneal structures such as the external iliac vessels, left ureter, left gonadal vessels, and the common iliac artery 🩸. Of great clinical relevance is the ureter, which runs posterior to the apex of the sigmoid mesocolon, making it vulnerable during pelvic surgeries. The superior rectal artery, a continuation of the inferior mesenteric artery (IMA), runs within the sigmoid mesocolon along with sigmoid arteries and accompanying veins. The inferior mesenteric nerve plexus also courses through it, contributing to autonomic innervation of the distal colon and rectum 🔍. The sigmoid mesocolon not only connects anatomy with clinical practice but also serves as a vital landmark in identifying transition points in colorectal cancer, ischemic colitis, or intestinal obstruction. #SigmoidMesocolon #PelvicAnatomy #MesocolonRelations #NEETPG #USMLE #FMGE #INICET #ClinicalAnatomy #SurgicalAnatomy #AnatomyExplained #PelvicSurgery #UreterRelations