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The purpose of this study was to analyze the clinical characteristics and treatment outcomes of patients who underwent endoscopic surgery for a maxillary sinus organized hematoma during a 15-year period in our hospital. Methods: The authors analyzed 25 patients who underwent endoscopic surgery for a maxillary sinus organized hematoma from January 2004 to December 2019. Results: Twenty-five patients with a maxillary sinus organized hematoma underwent endoscopic surgical treatment and complete removal of the maxillary sinus organized hematoma was achieved in all cases. The main symptoms were nasal bleeding in 14 patients, followed by a nasal obstruction in nine, and facial swelling in 2. Of the 25 patients, 13 underwent endoscopic medial maxillectomy and 12 underwent endoscopic sinus surgery. There were no major surgical complications or recurrences. Conclusion:The authors demonstrated that endoscopic surgery is a safe and reliable treatment method for a maxillary sinus organized hematoma.

The purpose of this study was to evaluate clinical characteristics and treatment outcome of patients with head and neck squamous cell carcinoma of unknown primary (HNSCCUP), treated according to the method of our hospital. Six patients with histopathologically and radiologically confirmed HNSCCUP January 2010-December 2016 were enrolled in this study. All patients underwent radical neck dissection involving level I–V, bilateral tonsillectomy, and diagnostic esophagoscopy and postoperative radiotherapy (RT), with or without concurrent chemotherapy. There were no major complications resulting from surgical intervention. Duration of follow-up was 56.3±20.2 months (range, 28–82 months). There was no recurrence or late detection of primary site of HNSCCUP. All patients with HNSCCUP except one were alive, at the time of the last follow-up. The other patient had no recurrence of HNSCCUP, but died of colon cancer at 58 months postoperatively. We have successfully treated patients with HNSCCUP by performing radical neck dissection, bilateral tonsillectomy, and diagnostic esophagoscopy and postoperative RT with concurrent chemotherapy, and recommend using this method as the main treatment method.

Background and ObjectivesThis study compared two types of skin graft reconstruction for the defect of the radial forearm free flap. Subjects and Method Ten cases of split-thickness skin graft (STSG) harvested from the thigh were analyzed. Also, ten cases of full-thickness skin graft (FTSG) harvest from the inguinal area applied with vacuum-assisted closure (VAC) system were analyzed. Results The defect size of the radial forearm was increased more in the STSG group than in the FTSG group (p＜0.05). Skin grafts were recovered completely sooner in the FTSG group than in the STSG group although it was not statistically significant (p=0.082). Five complications (pruritus, hypertrophic scar) were found in the donor site in the STSG group (p＜0.05). FTSG gave better scores according to the Vancouver Scar Scale in terms of pigmentation, pliability, and height (p＜0.05). Conclusion FTSG harvested from the inguinal area with the application of VAC system has many advantages for the defect of the radial forearm free flap although it is usually used for smaller size defects than for STSGs. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.