The relationship of preoperative hematologic parameters to invasion of anatomic structures and recurrence in tenosynovial giant-cell tumor of the digits.

Although the pathogenesis of Teno-Synovial Giant Cell Tumor (TSGCT) is not known, inflammation is thought to play a role in the etiology beside some other factors. Many researchers have found a close relationship between hematological parameters such as Mean Platelet Volume (MPV), Platelet/MPV Ratio (Plt/MPV), Monocyte/Neutrophil Ratio (MNR), Neutrophil/Lymphocyte Ratio (NLR), Platelet/Lymphocyte Ratio (PLR) and certain inflammatory, autoimmune and neoplastic diseases. The aim of the present study was to assess the relationship of hematological parameters (NLR, MNR and Plt/MPV) to tumor recurrence and spread after TSGCT surgery. Data from 102 patients who matched the inclusion criteria comprised preoperative hematological parameters, tumor size, anatomic region, side, presence of bone invasion, proximity to joints or neurovascular structures, and postoperative recurrence and complications. The mean follow-up was 54.2 months (±26.5). Recurrence was observed in 12 (11.8%) of the 102 cases. No significant correlation was found between recurrence and hematologic parameter, age, laterality (right-left) or zone (volar-dorsal). There were no significant differences in NLR, Plt/MPV or MNR between patients with and without bone, capsular, nerve or total involvement. The study thus showed that the various inflammatory parameters (NLR, Plt/MPV and MNR) calculated from blood count were not predictive of tumor invasion into anatomical structures or of digital TSGCT recurrence.

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