Biliary Tract Normal Anatomy and Variants On high-resolution computed tomography (CT), normal intrahepatic bile ducts (IHDs) appear as linear water-density structures accompanying the portal vein branches. Normal IHDs measure less than 3 mm. They appear to be randomly scattered throughout the…
Normal Variants and Congenital Anomalies The spleen begins to develop during the fifth week of embryogenesis when mesenchymal cells aggregate between the two leaves of the dorsal mesogastrium to form a lobulated embryonic spleen. Rotation of the stomach and growth…
Splenic Cysts Non-Neoplastic and Nonparasitic Splenic Cysts Etiology Non-neoplastic and nonparasitic splenic cysts are classified into primary (i.e., epithelial, true) and secondary (i.e., pseudocysts, false) cysts, depending on the presence or absence of the internal epithelial lining. Primary or epithelial…