|Micrograph showing a Rokitansky–Aschoff sinus. H&E stain.|
|Classification and external resources|
Histologically, they are outpouchings of gallbladder mucosa into the gallbladder muscle layer and subserosal tissue as a result of hyperplasia and herniation of epithelial cells through the fibromuscular layer of the gallbladder wall. They are usually referred to as adenomyomatosis.
They form as a result of increased pressure in the gallbladder and recurrent damage to the wall of the gallbladder.
Black pigment gallstones can form in Rokitansky-Aschoff sinuses of the gallbladder after the fourth to fifth decades of life in absence of the typical risk factors for bilirubin suprasaturation of bile. Hence, they are associated with gallstones (cholelithiasis). Cases of gall bladder cancer have also been reported to arise from Rokitansky–Aschoff sinuses.
Since Rokitansky–Aschoff sinuses can be normally present in the gall badder without any pathology, the radiological detection of these is only of academic interest. Magnetic resonance imaging plays an important role in the diagnosis of Rokitansky–Aschoff sinuses.
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- van Breda Vriesman, AC; Engelbrecht, MR; Smithuis, RH; Puylaert, JB (February 2007). "Diffuse gallbladder wall thickening: differential diagnosis.". AJR. American journal of roentgenology. 188 (2): 495–501. doi:10.2214/AJR.05.1712. PMID 17242260.
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- Matsumoto, T; Shimada, K (November 2009). "A case of gallbladder cancer arising from the Rokitansky-Aschoff sinus.". Japanese journal of clinical oncology. 39 (11): 776. doi:10.1093/jjco/hyp149. PMID 19884193.
- Sukman, R; Daron, PB (May 1953). "Roentgen visualization of the Rokitansky-Aschoff sinuses as an additional sign of chronic gallbladder disease.". Radiology. 60 (5): 714–7. doi:10.1148/60.5.714. PMID 13056187.
- Yoshimitsu, K; Honda, H; Jimi, M; Kuroiwa, T; Hanada, K; Irie, H; Tajima, T; Takashima, M; Chijiiwa, K; Shimada, M; Masuda, K (June 1999). "MR diagnosis of adenomyomatosis of the gallbladder and differentiation from gallbladder carcinoma: importance of showing Rokitansky-Aschoff sinuses.". AJR. American journal of roentgenology. 172 (6): 1535–40. doi:10.2214/ajr.172.6.10350285. PMID 10350285.
- synd/983 at Who Named It?
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