{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T05:35:21Z","timestamp":1790573721364,"version":"4.1.0"},"reference-count":79,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,15]],"date-time":"2025-07-15T00:00:00Z","timestamp":1752537600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: This systematic review aimed to comprehensively evaluate the clinical, diagnostic, and therapeutic features of synchronous acute cholecystitis (AC) and acute appendicitis (AAP). Methods: The review protocol was prospectively registered in PROSPERO (CRD420251086131) and conducted in accordance with PRISMA 2020 guidelines. A systematic search was performed across PubMed, MEDLINE, Web of Science, Scopus, Google Scholar, and Google databases for studies published from January 1975 to May 2025. Search terms included variations of \u201csynchronous,\u201d \u201csimultaneous,\u201d \u201cconcurrent,\u201d and \u201ccoexistence\u201d combined with \u201cappendicitis,\u201d \u201cappendectomy,\u201d \u201ccholecystitis,\u201d and \u201ccholecystectomy.\u201d Reference lists of included studies were screened. Studies reporting human cases with sufficient patient-level clinical data were included. Data extraction and quality assessment were performed independently by pairs of reviewers, with discrepancies resolved through consensus. No meta-analysis was conducted due to the descriptive nature of the data. Results: A total of 44 articles were included in this review. Of these, thirty-four were available in full text, one was accessible only as an abstract, and one was a literature review, while eight articles were inaccessible. Clinical data from forty patients, including two from our own cases, were evaluated, with a median age of 41 years. The gender distribution was equal, with a median age of 50 years among male patients and 36 years among female patients. Leukocytosis was observed in 25 of 33 patients with available laboratory data. Among 37 patients with documented diagnostic methods, ultrasonography and computed tomography were the most frequently utilized modalities, followed by physical examination. Twenty-seven patients underwent laparoscopic cholecystectomy and appendectomy. The remaining patients were managed with open surgery or conservative treatment. Postoperative complications occurred in five patients, including sepsis, perforation, leakage, diarrhea, and wound infections. Histopathological analysis revealed AAP in 25 cases and AC in 14. Additional findings included gangrenous inflammation and neoplastic lesions. Conclusions: Synchronous AC and AAP are rare and diagnostically challenging conditions. Early recognition via imaging and clinical evaluation is critical. Laparoscopic management remains the preferred approach. Histopathological examination of surgical specimens is essential for identifying unexpected pathology, thereby guiding appropriate patient management.<\/jats:p>","DOI":"10.3390\/jcm14145019","type":"journal-article","created":{"date-parts":[[2025,7,15]],"date-time":"2025-07-15T15:01:05Z","timestamp":1752591665000},"page":"5019","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Concurrent Acute Appendicitis and Cholecystitis: A Systematic Literature Review"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5381-513X","authenticated-orcid":false,"given":"Adem","family":"Tuncer","sequence":"first","affiliation":[{"name":"Department of Surgery, Istanbul Aydin University Faculty of Medicine, 34295 Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6864-7711","authenticated-orcid":false,"given":"Sami","family":"Akbulut","sequence":"additional","affiliation":[{"name":"Department of Surgery and Liver Transplantation, Inonu University Faculty of Medicine, 44280 Malatya, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5267-9068","authenticated-orcid":false,"given":"Emrah","family":"Sahin","sequence":"additional","affiliation":[{"name":"Department of Surgery, Istanbul Aydin University Faculty of Medicine, 34295 Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7698-9586","authenticated-orcid":false,"given":"Zeki","family":"Ogut","sequence":"additional","affiliation":[{"name":"Department of Surgery, Elazig Fethi Sekin City Hospital, 23280 Elazig, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5433-591X","authenticated-orcid":false,"given":"Ertugrul","family":"Karabulut","sequence":"additional","affiliation":[{"name":"Department of Surgery and Liver Transplantation, Inonu University Faculty of Medicine, 44280 Malatya, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2299","DOI":"10.1001\/jama.2021.20502","article-title":"Diagnosis and Management of Acute Appendicitis in Adults: A Review","volume":"326","author":"Moris","year":"2021","journal-title":"JAMA"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1007\/s13304-022-01426-y","article-title":"The role of imaging in the diagnosis of acute appendicitis during the COVID-19 pandemic: A retrospective cohort study","volume":"75","author":"Perrotta","year":"2023","journal-title":"Updates Surg."},{"key":"ref_3","unstructured":"Fitz, R.H. 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