{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T06:19:35Z","timestamp":1771049975316,"version":"3.50.1"},"reference-count":9,"publisher":"Scientific Scholar","content-domain":{"domain":["clinicalimagingscience.org"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:p>Duplication of the thumb is the most common polydactyly of the hand. Wassel's classification is frequently used to classify the polydactyly of the hand. His classification was based on the level of duplication and the number of bones in the thumb, and has seven groups (Types I\u2013VII) according to the level of the bifurcation, except for his Type VII. The most common type is the bifurcation at the metacarpophalangeal joint (Type IV). In this paper, we report a very rare case of Type V thumb polydactyly in a 42-year-old man, who presented with swan neck deformity of the radial thumb and discuss the plain radiography and computed tomography (CT) findings. Kumar recently reported plain radiography findings in a case of bifid first metacarpal in a 13-year-old girl, who presented with swan neck deformity of the left thumb. To our knowledge, our case is the second presented case that has a swan neck deformity with bifid metacarpal.<\/jats:p>","DOI":"10.4103\/2156-7514.153974","type":"journal-article","created":{"date-parts":[[2015,3,25]],"date-time":"2015-03-25T10:26:16Z","timestamp":1427279176000},"page":"16","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Wassel's Type V Polydactyly with Plain Radiographic and CT Findings"],"prefix":"10.25259","volume":"5","author":[{"given":"Berna Dirim","family":"Mete","sequence":"first","affiliation":[{"name":"Department of Radiology, University of Katip Celebi Ataturk Training and Research Hospital, Izmir, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Canan","family":"Altay","sequence":"additional","affiliation":[{"name":"Department of Radiology, University of Dokuz Eylul, Izmir, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Merve","family":"Gursoy","sequence":"additional","affiliation":[{"name":"Department of Radiology, University of Katip Celebi Ataturk Training and Research Hospital, Izmir, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Orhan","family":"Oyar","sequence":"additional","affiliation":[{"name":"Department of Radiology, University of Katip Celebi Ataturk Training and Research Hospital, Izmir, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10894","published-online":{"date-parts":[[2015,3,25]]},"reference":[{"key":"10.4103\/2156-7514.153974\/ref-1","first-page":"397","article-title":"Polydactyly in American negroes and whites","volume":"25","author":"Woolf","year":"1973","journal-title":"Am J Hum Genet"},{"key":"10.4103\/2156-7514.153974\/ref-2","first-page":"32","article-title":"Clinical and genetic studied on 12 preaxial polydactly families and refinement of the localisation of the gene responsible to a 1.9 cM region on chromosome 7q36","volume":"36","author":"Zguricas","year":"1999","journal-title":"J Med Genet"},{"key":"10.4103\/2156-7514.153974\/ref-3","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1016\/S0749-0712(21)00141-4","article-title":"Finger polydactyly","volume":"14","author":"Graham","year":"1998","journal-title":"Hand Clin"},{"key":"10.4103\/2156-7514.153974\/ref-4","first-page":"175","article-title":"The results of surgery for polydactyly of the thumb. A review","volume":"64","author":"Wassel","year":"1969","journal-title":"Clin Orthop Relat Res"},{"key":"10.4103\/2156-7514.153974\/ref-5","doi-asserted-by":"crossref","first-page":"1419","DOI":"10.1002\/ajmg.a.31244","article-title":"Genotype-phenotype correlations in mapped split hand foot malformation (SHFM) patients","volume":"140","author":"Elliott","year":"2006","journal-title":"Am J Med Genet A"},{"key":"10.4103\/2156-7514.153974\/ref-6","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1006\/geno.2000.6225","article-title":"A novel candidate gene for mouse and human preaxial polydactyly with altered expression in limbs of Hemimelic extra-toes mutant mice","volume":"67","author":"Clark","year":"2000","journal-title":"Genomics"},{"key":"10.4103\/2156-7514.153974\/ref-7","doi-asserted-by":"crossref","first-page":"1725","DOI":"10.1093\/hmg\/ddg180","article-title":"A long-range Shh enhancer regulates expression in the developing limb and fin and is associated with preaxial polydactyly","volume":"12","author":"Lettice","year":"2003","journal-title":"Hum Mol Genet"},{"key":"10.4103\/2156-7514.153974\/ref-8","doi-asserted-by":"crossref","first-page":"584","DOI":"10.2106\/00004623-198365050-00002","article-title":"Duplication of the thumb. A retropective review of two hundred and thirty-seven cases","volume":"65","author":"Tada","year":"1983","journal-title":"J Bone Joint Surg Am"},{"key":"10.4103\/2156-7514.153974\/ref-9","doi-asserted-by":"crossref","first-page":"227","DOI":"10.4103\/0019-5413.61726","article-title":"An unusual bifid first metacarpal","volume":"44","author":"Kumar","year":"2010","journal-title":"Indian J Orthop"}],"container-title":["Journal of Clinical Imaging Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/clinicalimagingscience.org\/wassels-type-v-polydactyly-with-plain-radiographic-and-ct-findings\/","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/clinicalimagingscience.org\/wassels-type-v-polydactyly-with-plain-radiographic-and-ct-findings\/","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,3]],"date-time":"2022-05-03T20:48:04Z","timestamp":1651610884000},"score":1,"resource":{"primary":{"URL":"https:\/\/clinicalimagingscience.org\/wassels-type-v-polydactyly-with-plain-radiographic-and-ct-findings\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,3,25]]},"references-count":9,"alternative-id":["10.4103\/2156-7514.153974"],"URL":"https:\/\/doi.org\/10.4103\/2156-7514.153974","relation":{},"ISSN":["2156-7514"],"issn-type":[{"value":"2156-7514","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,3,25]]},"article-number":"16"}}