{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T10:40:26Z","timestamp":1756377626654,"version":"3.44.0"},"reference-count":21,"publisher":"BMJ","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Case Reports"],"abstract":"<jats:p>Various nerve anastomoses and anatomic variants in the nervous system have been described. It is important to be familiar with these anastomoses because they can mimic several clinical conditions, possibly leading to misdiagnosis. We report the case of a patient who experienced progressive loss of strength in his left hand without sensory complaints. On neurological examination atrophy was seen in the thenar and first dorsal interosseous muscles of the left hand. Serial electrophysiological studies ruled out motor neuron disease. Electromyography and nerve conduction studies revealed a Riche-Cannieu anastomosis in the left hand. In combination with piso-hamate hiatus syndrome, this anastomosis explained the clinical condition of the patient. It is important to be aware of this anastomosis and this syndrome because it can mimic motor neuron disease.<\/jats:p>","DOI":"10.1136\/bcr-2013-008601","type":"journal-article","created":{"date-parts":[[2013,3,20]],"date-time":"2013-03-20T23:14:02Z","timestamp":1363821242000},"page":"bcr2013008601","source":"Crossref","is-referenced-by-count":3,"title":["Piso-hamate hiatus syndrome in a patient with Riche-Cannieu anastomosis"],"prefix":"10.1136","volume":"2013","author":[{"given":"J\u00f6rgen M P","family":"Rovers","sequence":"first","affiliation":[{"name":"Department of Neurology, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Geert J F","family":"Brekelmans","sequence":"additional","affiliation":[{"name":"Department of Neurology, St Elisabeth Hospital, Tilburg, The Netherlands"},{"name":"Department of Clinical Neurophysiology, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leo H","family":"Visser","sequence":"additional","affiliation":[{"name":"Department of Neurology, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2013,3,20]]},"reference":[{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.1","doi-asserted-by":"publisher","DOI":"10.1212\/01.WNL.0000113733.62689.0D"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.2007.115337"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.3","first-page":"119","article-title":"Motor neuron presentation of an ulnar neuropathy and Riche-Cannieu anastomosis","volume":"40","author":"Saperstein","year":"2000","journal-title":"Electromyogr Clin Neurophysiol"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.4","doi-asserted-by":"crossref","first-page":"145","DOI":"10.2106\/00004623-197658010-00032","article-title":"Compression syndrome of the deep motor branch of the ulnar nerve (piso-hamate hiatus syndrome)","volume":"58","author":"Uriburu","year":"1976","journal-title":"J Bone Joint Surg Am"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.5","first-page":"94","article-title":"Entrapment neuropathies: 1. 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Bull Mem Soc Anat Paris 1897:251\u20132."},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.11","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2006.12.009"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.12","doi-asserted-by":"publisher","DOI":"10.1620\/tjem.141.269"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.13","doi-asserted-by":"publisher","DOI":"10.1097\/01.PHM.0000130034.76547.4F"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.14","first-page":"559","article-title":"Complete ulnar innervation of the thenar muscles combined with normal sensory fibres in a subject with no peripheral nerve lesion","volume":"32","author":"Ganes","year":"1992","journal-title":"Electromyogr Clin Neurophysiol"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.15","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880160402"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.16","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880180307"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.17","first-page":"377","article-title":"Carpal tunnel syndrome and the Riche-Cannieu anastomosis: electrophysiologic findings","volume":"41","author":"Refaeian","year":"2001","journal-title":"Electromyogr Clin Neurophysiol"},{"issue":"Pt3","key":"2025082802591011000_2013.mar20_1.bcr2013008601.18","first-page":"461","article-title":"The double anastomotic innervation of thenar muscles","volume":"109","author":"Harness","year":"1971","journal-title":"J Anat"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.19","first-page":"35","article-title":"A variant of the Cannieu-Riche communication: case report","volume":"86","author":"Sarikcioglu","year":"2002","journal-title":"Morphologie"},{"issue":"Pt2","key":"2025082802591011000_2013.mar20_1.bcr2013008601.20","first-page":"329","article-title":"The double motor innervation of the opponenes pollicis muscles: an electromyographic study","volume":"117","author":"Harness","year":"1974","journal-title":"J Anat"},{"key":"2025082802591011000_2013.mar20_1.bcr2013008601.21","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880180119"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2013-008601","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T09:59:19Z","timestamp":1756375159000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2013-008601"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,3,20]]},"references-count":21,"alternative-id":["10.1136\/bcr-2013-008601"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2013-008601","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2013,3,20]]}}}