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    The importance of coordination in preventing overdiagnosis: a retrospective analysis of unabsorbed oxidized regenerated cellulose
    (Springer-Verlag Italia Srl, 2024) Turk, Ilteris; Cetin, Mehmet; Babacan, Fatma; Solak, Necati; Agackiran, Yetkin; Ozturk, Ayperi; Acar, Leyla Nesrin
    BackgroundOxidized regenerated cellulose (ORC) is commonly used to control small intraoperative bleedings in lung cancer surgery. However, difficulties in its absorption may lead to complications that can mimic malignancy recurrence in the affected areas, and may require further examination.MethodsBetween 2015 and 2022, patients who underwent malignant tumour resection and lymph node dissection and were subsequently evaluated for suspected lymph node recurrence and underwent EBUS-guided needle biopsy were included in the study. Pathology reports of these patients showed an ORC-related foreign body type granulomatous reaction. Such reactions, caused by delayed absorption of ORC, can mimic malignancy recurrence and result in unnecessary biopsies.ResultsIn a total of 13 patients (10 males), pathology was observed in 18 lymph node areas after malignant resection and lymph node dissection, and ORC was detected in subcarinal and inferior paratracheal lymph node areas in all patients. The average age of the patients was calculated as 63.1 years (range 51-74). The mean SUVmax value observed in these lymph node areas on PET/CT was 5.22 (range 0-14.36). Although the SUVmax value decreased as the time between surgery and EBUS increased, no statistically significant difference was observed (p = 0.100).ConclusionThe study suggests that in cases of suspected unexpected lymph node recurrence in postoperative follow-up of lung cancer, it is important for clinicians to communicate with the surgeon and re-evaluate the use of ORC by reviewing the operative notes. This may help in determining an appropriate further investigation strategy.