. Diseases of the rectum and anus: designed for students and practitioners of medicine. y masticated wood-fiber, was successfully removed from the intestine of a was caused by the chewing and swallowing of toothpicks: anot uncommon habit in certain parts of the West. 1 Jacobson (Trans. Med. Soc. State V. Y., page 386, 1901) reports the successfulremoval by laparotomy of a mass of hair which completely filled the stomach of ayoung girl. ENTEROLITHS AND CONCRETIOlS, S 637 Avenoliths (Oat-stones). — Concretions of this variety arerarely seen in this country, but are not infrequently met
. Diseases of the rectum and anus: designed for students and practitioners of medicine. y masticated wood-fiber, was successfully removed from the intestine of a was caused by the chewing and swallowing of toothpicks: anot uncommon habit in certain parts of the West. 1 Jacobson (Trans. Med. Soc. State V. Y., page 386, 1901) reports the successfulremoval by laparotomy of a mass of hair which completely filled the stomach of ayoung girl. ENTEROLITHS AND CONCRETIOlS, S 637 Avenoliths (Oat-stones). — Concretions of this variety arerarely seen in this country, but are not infrequently met with inScotland. They are found principally in persons who consumelarge quantities of oatmeal; they occur less frequently at thepresent time than formerly, because the Scotch are now eatingmore meat and less meal. Avenoliths vary from cherry toorange size, and are of firm consistence. They are oval or flatin shape, dependent upon location and pressure, and yellowin color unless mixed with salts, when they have a whitish ap-pearance. They are formed of concentric rings of vegetable. Fig. 209.—Enterolith from the Rectum. fiber, intermingled with lime, water, feces, and silica from theoat (Maclagan). During the Irish famine of 1846 many con-cretions of a similar nature were encountered, caused by eatingthe skins of potatoes. In some cases it was found that acherry-stone or plum-stone acted as a nucleus for their for-mation. Any vegetable food having long and coarse fibers, ifeaten in large quantities, may result in the formation of anintestinal concretion of this type. Enteroliths (Intestinal Calculi). — Stony concretions otherthan gall-stones have been encountered in all parts of the in-testine, but less frequently (see Dr. Fullers case. Fig. 209). 638 DISEASES OF THE RECTUM AND ANUS Enteroliths are rarely met with under forty, and occur morefrequently in women than men. They may be small and ir-regular in shape or large and oval, and vary in weight from afew grains to 15 o
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