Long-term Sonographic Follow-up of Stable Imaging Findings of Multiseptate Gallbladder

Multiseptate gallbladder is a very rare congenital anomaly of the gallbladder characterized by multiple thin septations within the gallbladder lumen. Following its detailed description in 1963 by Simon and Tandon, 1 there have been isolated case reports on this anomaly. 1-3 To our knowledge, no one has reported long-term clinical and radiologic follow-up of an asymptomatic patient with a multiseptate gallbladder. On sonography it is important to distinguish this entity from the pseudomembranous appearance caused by detached mucosa of a gangrenous gallbladder. 4