{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T16:31:50Z","timestamp":1787070710209,"version":"build-2736575974"},"reference-count":6,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","license":[{"start":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T00:00:00Z","timestamp":1763424000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>\n                    A\n                    <jats:sc>BSTRACT<\/jats:sc>\n                  <\/jats:title>\n                  <jats:p>PEComas or perivascular epithelioid cell tumors are rare soft-tissue tumors that form around perivascular spaces with a female preponderance, the origins of which are yet to be established. PEComas of the gastrointestinal tract are very rare, and only 21 cases have been reported in the literature. This case report comes from a tertiary hospital of an adolescent male who presented with complaints of vague abdominal pain and was noted to have lump in his right hypochondrium. Ultrasound-guided biopsy was done, after which PEComa was considered and was further confirmed on the excised specimen using HMB-45, the characteristic melanin marker of PEComa on immunohistochemistry. The adolescent is now healthy and on regular follow-up. PEComas are rarely considered in the first few differential diagnoses, as they require histopathological confirmation for definitive diagnosis.<\/jats:p>","DOI":"10.4103\/jiaps.jiaps_289_25","type":"journal-article","created":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T19:00:16Z","timestamp":1773082816000},"page":"294-296","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["PEComa of the Mesentery of the Colon in a Child: A Peculiar Tumor that Evades a Common Diagnosis"],"prefix":"10.4103","volume":"31","author":[{"given":"Aparna","family":"Sridhar","sequence":"first","affiliation":[{"name":"Department of Paediatric Surgery, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nitin G.","family":"Pai","sequence":"additional","affiliation":[{"name":"Department of Paediatric Surgery, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Santosh","family":"Prabhu","sequence":"additional","affiliation":[{"name":"Department of Paediatric Surgery, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brij Mohan Kumar","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Pathology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K Vasudeva","family":"Bhat","sequence":"additional","affiliation":[{"name":"Department of Pediatric Hematology and Oncology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vijay","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Paediatric Surgery, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2025,11,18]]},"reference":[{"key":"R1-20260311","doi-asserted-by":"crossref","first-page":"830","DOI":"10.1016\/j.jpedsurg.2010.01.015","article-title":"Perivascular epithelioid cell tumor of the ascending colon mesentery in a child: Case report and review of the literature","volume":"45","author":"Gross","year":"2010","journal-title":"J Pediatr Surg"},{"key":"R2-20260311","doi-asserted-by":"crossref","first-page":"e374","DOI":"10.5858\/arpa.2023-0552-OA","article-title":"Perivascular epithelioid cell-family tumors in children, adolescents, and young adults: Clinicopathologic features in 70 cases","volume":"148","author":"Hammer","year":"2024","journal-title":"Arch Pathol Lab Med"},{"key":"R3-20260311","doi-asserted-by":"crossref","first-page":"1558","DOI":"10.1097\/01.pas.0000173232.22117.37","article-title":"Perivascular epithelioid cell neoplasms of soft tissue and gynecologic origin: A clinicopathologic study of 26 cases and review of the literature","volume":"29","author":"Folpe","year":"2005","journal-title":"Am J Surg Pathol"},{"key":"R4-20260311","doi-asserted-by":"crossref","first-page":"e3890","DOI":"10.1097\/MD.0000000000003890","article-title":"Asystematic review: Perivascular epithelioid cell tumor of gastrointestinal tract","volume":"95","author":"Chen","year":"2016","journal-title":"Medicine (Baltimore)"},{"key":"R5-20260311","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1007\/s00428-007-0509-1","article-title":"PEComas: The past, the present and the future","volume":"452","author":"Martignoni","year":"2008","journal-title":"Virchows Arch"},{"key":"R6-20260311","doi-asserted-by":"crossref","first-page":"598","DOI":"10.1097\/MPG.0b013e318148b65c","article-title":"Metastatic perivascular epithelioid cell tumor of the colon in a child","volume":"46","author":"Pisharody","year":"2008","journal-title":"J Pediatr Gastroenterol Nutr"}],"container-title":["Journal of Indian Association of Pediatric Surgeons"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/jiaps.jiaps_289_25","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T15:35:11Z","timestamp":1787067311000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/jiaps.jiaps_289_25"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,18]]},"references-count":6,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.4103\/jiaps.jiaps_289_25","relation":{},"ISSN":["0971-9261","1998-3891"],"issn-type":[{"value":"0971-9261","type":"print"},{"value":"1998-3891","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11,18]]},"assertion":[{"value":"2025-08-19","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication 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