This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Portocaval anastomosis is seen at all of the following places, except- 
Select and explain. 
A. Gastroesophageal junction (lower end of esophegus), B. Rectum, C. Spleen, D. Liver
C: Spleen
Answer: C: Spleen 
Explanation: Ans. is 'c' i.e., Spleen Sites of portocaval anastomosesSitePortal veinSystemic veinThe lower end of esophagusLeft gastricOesophageal veins (tributaries of a hemizygous vein)UmbilicusParaumbilicalAbove - Superior epigastric, lateral thoracicBelow - Superior epigastric, inferior epigastricSides - Posterior intercostal, lumbarThe lower end of rectumSuperior rectalMiddle and inferior rectalPosterior abdominal wallSplenicLeft renal vein and other tributaries of IVC (veins of Retzius)Bare area of liverPortal radiclesDiaphragmaticFalciform ligamentParaumbilicalDiaphragmaticLigamentum versosumLeft branch of portal1VC via ductus venosusPosterior vaginal wallSuperior rectalVaginal venous plexus