Very little appears in the English medical literature concerning the formation of gallstones in the wall of the gallbladder. In fact, it has been impossible to find a single article which describes this condition fully.
Rolleston and McNee1 briefly stated that intramural gallstones may occur, and in Sieveking's English translation of Rokitansky's "Manual of Pathological Anatomy," published in 1855,2 a note is found regarding the occurrence of such stones.
Stones within the wall of the gallbladder were first described by Morgagni3 in 1761 in his famous "De sedibus et causis morborum." He thought that the stones originated in small glands. Outpouchings of the mucosa of the gallbladder into the external layers of its wall were first noted by Rokitansky in 1842,4 and in the English edition of the previously mentioned manual there occurs this sentence: "Small calculi are also occasionally formed within small saccular dilatations of
MOORE SW. INTRAMURAL FORMATION OF GALLSTONES. Arch Surg. 1937;34(3):410-423. doi:10.1001/archsurg.1937.01190090035003