{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T22:59:03Z","timestamp":1776898743341,"version":"3.51.2"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2005,12,12]],"date-time":"2005-12-12T00:00:00Z","timestamp":1134345600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Cutan Pathol"],"published-print":{"date-parts":[[2006,1]]},"abstract":"<jats:p>\n                    <jats:bold>Abstract:\u2002<\/jats:bold>\n                    Erythema nodosum (EN) is the most common panniculitis and histologically represents the prototype of a septal panniculitis. However, the histologic findings can be quite variable. We describe four patients with EN who each underwent two consecutive biopsies. In each case, the first biopsy showed histopathologic features that fall outside the usual spectrum of disease. Two cases showed predominantly neutrophilic infiltrates with focal suppuration as well as vasculitis of medium\u2010sized arteries. The areas of suppuration were more extensive in the first case prompting special stains for microorganisms that were all negative. The third case demonstrated a lobular panniculitis with a predominantly lymphohistiocytic infiltrate. Special stains were negative in this case as well. The fourth case revealed vasculitis of a medium sized artery, small vessel vasculitis, and a mixed septal and lobular panniculitis with a polyclonal population of atypical lymphocytes. In all patients, the clinical course and the subsequent biopsy were classic for EN. We conclude that lobular neutrophilic panniculitis with suppuration, small vessel vasculitis, and even medium vessel arteritis may rarely occur in EN. There are few clues in these unusual cases that allow for a specific diagnosis from the start, and often, a second biopsy is required.\n                  <\/jats:p>","DOI":"10.1111\/j.0303-6987.2006.00402.x","type":"journal-article","created":{"date-parts":[[2005,12,12]],"date-time":"2005-12-12T12:59:20Z","timestamp":1134392360000},"page":"18-26","source":"Crossref","is-referenced-by-count":51,"title":["Histopathologic spectrum of erythema nodosum"],"prefix":"10.1111","volume":"33","author":[{"given":"Stacy","family":"Thurber","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sabine","family":"Kohler","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,12,12]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-4362.1998.00316.x"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1085-5629(99)80008-X"},{"key":"e_1_2_5_4_2","first-page":"1168","article-title":"Erythema nodosum: 112 cases. 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