This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'True about mesenteric cysta) Moves perpendicular to the line of attachmentb) Teratomatous is most commonc) Chylolymphatic cyst has separate blood supplyd) Surgical removal of bowel along cyst is treatment of choice in all the cyst. \nSelect and explain. \nA. ac, B. bc, C. ad, D. b', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Mesenteric cysts are of following types:\n\n\nChylolymphatic (most common) \xa0 \xa0 \xa0 \xa0 \xa0\xa0\nsimple (mesothelial)\nEnterogenous\nUrogenital remnan\xa0\nDermoid (teratomatous cyst)\n\nChylolymphatic cyst\n\nUsually are congenital, resulting from developmental sequestration of lymphatics.\nIt is found most frequently in the mesentery of the ileum.\nCyst wall is thin, made up of connective tissue; lacks the muscular wall of enteric duplication cyst.\nCyst is not lined by mucosa.\nIt is filled with clear lymph or chyle.\nA chylolymphatic cyst is almost invariably solitary, although in extreme rare cases, multiple cyst may be seen.\nCyst is more often unilocular than multilocular.\nA chylolymphatic cyst has a blood supply independent of that of the adjacent intestine, and thus enucleation (resection) is possible without the need for resection of gut.\n\n\nEnterogenous cyst\n\n\nBelieved to be derived either from a diverticulum of the mesenteric border of the intestine which has become sequestered from the intestinal canal during embryonic life or from a duplication of the intestine.\nAn enterogenous cyst has thicker wall than a chylolymphatic cyst, and it is lined by mucous membrane, sometimes ciliated.\nThe content is mucinous\nThe enterogenosu cyst and the adjacent bowel wall has a common blood supply therefore enucleation of the cyst is always done along with resection of the related portion of intestine followed by anastomosis.\n\nClinical features\n\npainless abdominal swelling\n\n-\xa0\xa0\xa0\xa0 the swelling moves freely in a plane at right angles to the attachment of the mesentery.\n\nrecurrent attacks of abdominal pain with or without vomiting due to obstructive symptoms.\nacute abdominal pain due to\n\n\ntorsion of the mesentery containing cyst\nrupture of cyst\nhemorrhage into the cyst\ninfection of the cyst\n\nEnucleation is the t/t\xa0of choice. Associated segment of bowel is removed along with enterogenous cyst. Other t/t modalities i.e. marsupialization, internal drainage, or aspiration are suboptimal and are almost always followed by recurrence.', 'role': 'assistant'}]