{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T15:11:34Z","timestamp":1770909094016,"version":"3.50.1"},"reference-count":31,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"31","license":[{"start":{"date-parts":[[2023,8,4]],"date-time":"2023-08-04T00:00:00Z","timestamp":1691107200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,8,4]]},"abstract":"<jats:sec>\n                    <jats:title>Rationale:<\/jats:title>\n                    <jats:p>Signet-ring cell carcinoma, which is an infrequent type of colorectal cancer. Abdominal pain is the primary presenting complaint of patients with acute appendicitis. It is difficult to diagnose patients with appendiceal carcinomas accompanying with symptoms of acute appendicitis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Patient Concerns:<\/jats:title>\n                    <jats:p>A 33-year-old female patient was admitted to our hospital, with chief complaints of \u201cbilateral pelvic space-occupying lesions for 1 month, aggravated abdominal distension, and she accompanied with diarrhea for 3 days.\u201d<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Diagnosis:<\/jats:title>\n                    <jats:p>The patient was with primary signet ring cell carcinoma of the appendix, presented with acute appendicitis, as well as bilateral ovarian metastasis and peritoneal implantation metastasis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Interventions:<\/jats:title>\n                    <jats:p>She was then treated with irinotecan, oxaliplatin, calcium folinate, 5-FU combined with bevacizumab, surgical treatment, and postoperative adjuvant treatment with oxaliplatin, capecitabine regimen to consolidate the efficacy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Outcomes:<\/jats:title>\n                    <jats:p>The patient is in good conditions, and postoperative adjuvant chemotherapy is in progress as well.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The outcomes highlighted the importance of strict histopathologic assessment for appendiceal adenocarcinoma, and provided new ideas for the diagnosis and treatment of advanced-stage signet ring cell carcinoma of the appendix.<\/jats:p>\n                  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