{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,18]],"date-time":"2026-04-18T07:19:47Z","timestamp":1776496787304,"version":"3.51.2"},"reference-count":50,"publisher":"Georg Thieme Verlag KG","issue":"04","license":[{"start":{"date-parts":[[2024,3,23]],"date-time":"2024-03-23T00:00:00Z","timestamp":1711152000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Indian J Radiol Imaging"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A variety of tumors involve the anal canal because the anal canal forms the transition between the digestive system and the skin, and this anatomical region is made of a variety of different cells and tissues. Magnetic resonance imaging (MRI) is the modality of choice for diagnosis and local staging of the anal canal and perianal neoplasms. In this pictorial review, we demonstrate the MRI anatomy of the anal canal and perianal region and display the imaging spectrum of tumors in the region along with an overview of its management. Imaging appearances of many tumorlike lesions that can cause diagnostic dilemmas are also demonstrated with pointers to differentiate between them.<\/jats:p>","DOI":"10.1055\/s-0044-1781459","type":"journal-article","created":{"date-parts":[[2024,3,23]],"date-time":"2024-03-23T23:30:21Z","timestamp":1711236621000},"page":"688-701","source":"Crossref","is-referenced-by-count":1,"title":["Anal and Perianal Masses: The Common, the Uncommon, and the Rare"],"prefix":"10.1055","volume":"34","author":[{"given":"Antony","family":"Augustine","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rijo","family":"Issac","sequence":"additional","affiliation":[{"name":"Department of General Pathology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aisha","family":"Lakhani","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Harsha Veena","family":"Kanamathareddy","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reetu","family":"John","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Betty","family":"Simon","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dipti","family":"Masih","sequence":"additional","affiliation":[{"name":"Department of General Pathology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anu","family":"Eapen","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anuradha","family":"Chandramohan","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2024,3,23]]},"reference":[{"issue":"01","key":"ref1","doi-asserted-by":"crossref","first-page":"7","DOI":"10.3322\/caac.21708","article-title":"Cancer statistics, 2022","volume":"72","author":"R L Siegel","year":"2022","journal-title":"CA Cancer J Clin"},{"issue":"04","key":"ref2","doi-asserted-by":"crossref","first-page":"701","DOI":"10.1016\/j.gtc.2013.09.008","article-title":"Anorectal anatomy and imaging techniques","volume":"42","author":"P Solan","year":"2013","journal-title":"Gastroenterol Clin North Am"},{"issue":"927","key":"ref3","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1259\/bjr\/33540239","article-title":"Techniques and trouble-shooting in high spatial resolution thin slice MRI for rectal cancer","volume":"78","author":"G Brown","year":"2005","journal-title":"Br J Radiol"},{"key":"ref4","first-page":"136","article-title":"MRI staging of anorectal malignancy\u2014a reporting dilemma: is it adenocarcinoma or squamous cell carcinoma?","volume":"6","author":"A Chandramohan","year":"2023","journal-title":"J Gastrointestinal Abdominal Radiol"},{"issue":"03","key":"ref5","doi-asserted-by":"crossref","first-page":"436","DOI":"10.1007\/s003300050688","article-title":"High-resolution magnetic resonance imaging of the anal sphincter using a dedicated endoanal receiver coil","volume":"9","author":"N M deSouza","year":"1999","journal-title":"Eur Radiol"},{"issue":"03","key":"ref6","doi-asserted-by":"crossref","first-page":"W335","DOI":"10.2214\/AJR.11.8027","article-title":"Imaging of anal carcinoma","volume":"199","author":"R Kochhar","year":"2012","journal-title":"AJR Am J Roentgenol"},{"key":"ref7","volume-title":"World Health Organization Classification of Tumours Editorial Board. 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