Background and Objectives: Sinonasal malignant lymphoma is rare and aggressive. Its low incidence has made detailed studies on epidemiology, survival, and consensus treatment modalities a challenge, and also has limited developing standardized protocols for diagnosis and management. This study analyzes the clinical factors of patients diagnosed with sinonasal malignant lymphoma and their treatment modalities to understand therapeutic outcome and prognostic factors.Subjects and Method The medical records of patients diagnosed between 2011 and 2020 as sinonasal (SN) malignant lymphoma (extranodal NK/T cell lymphoma [ENKTL]/diffuse large B cell lymphoma [DLBCL]) in Seoul national university hospital were retrospectively reviewed. Results: A total 42 patients were included in the study. Of those, 30 patients were SN-ENKTL, 12 patients were SN-DLBCL. The mean age of SN-DLBCL and SN-DLBCL groups was 52.8±14.4, 60.8±12.4, respectively. The main chief complaint was nasal obstruction (54%). Approximately 75% were diagnosed as stage II (Ann-Arbor staging system) and most of the patients received multi-agent chemotherapy or chemoradiotherapy. The 3-year overall survival rate for SN-DLBCL and SN-DLBCL groups was roughly 90%, 88.9%, respectively and the average of disease-free survival period was approximately 41.1 and 22.1 months, respectively, after initiation of treatment. Conclusion We found that sinonasal malignant lymphoma is highly responsive to chemo or chemoradiotherapy. Early accurate diagnosis is important as early-stage patients receiving therapy may benefit from chemo or chemoradiotherapy. Our clinical data showed that in ambiguous situations, wide excision should be considered for diagnosis.

Background and Objectives: Sinonasal malignant lymphoma is rare and aggressive. Its low incidence has made detailed studies on epidemiology, survival, and consensus treatment modalities a challenge, and also has limited developing standardized protocols for diagnosis and management. This study analyzes the clinical factors of patients diagnosed with sinonasal malignant lymphoma and their treatment modalities to understand therapeutic outcome and prognostic factors.Subjects and Method The medical records of patients diagnosed between 2011 and 2020 as sinonasal (SN) malignant lymphoma (extranodal NK/T cell lymphoma [ENKTL]/diffuse large B cell lymphoma [DLBCL]) in Seoul national university hospital were retrospectively reviewed. Results: A total 42 patients were included in the study. Of those, 30 patients were SN-ENKTL, 12 patients were SN-DLBCL. The mean age of SN-DLBCL and SN-DLBCL groups was 52.8±14.4, 60.8±12.4, respectively. The main chief complaint was nasal obstruction (54%). Approximately 75% were diagnosed as stage II (Ann-Arbor staging system) and most of the patients received multi-agent chemotherapy or chemoradiotherapy. The 3-year overall survival rate for SN-DLBCL and SN-DLBCL groups was roughly 90%, 88.9%, respectively and the average of disease-free survival period was approximately 41.1 and 22.1 months, respectively, after initiation of treatment. Conclusion We found that sinonasal malignant lymphoma is highly responsive to chemo or chemoradiotherapy. Early accurate diagnosis is important as early-stage patients receiving therapy may benefit from chemo or chemoradiotherapy. Our clinical data showed that in ambiguous situations, wide excision should be considered for diagnosis.

Background and Objectives: Sinonasal malignant lymphoma is rare and aggressive. Its low incidence has made detailed studies on epidemiology, survival, and consensus treatment modalities a challenge, and also has limited developing standardized protocols for diagnosis and management. This study analyzes the clinical factors of patients diagnosed with sinonasal malignant lymphoma and their treatment modalities to understand therapeutic outcome and prognostic factors.Subjects and Method The medical records of patients diagnosed between 2011 and 2020 as sinonasal (SN) malignant lymphoma (extranodal NK/T cell lymphoma [ENKTL]/diffuse large B cell lymphoma [DLBCL]) in Seoul national university hospital were retrospectively reviewed. Results: A total 42 patients were included in the study. Of those, 30 patients were SN-ENKTL, 12 patients were SN-DLBCL. The mean age of SN-DLBCL and SN-DLBCL groups was 52.8±14.4, 60.8±12.4, respectively. The main chief complaint was nasal obstruction (54%). Approximately 75% were diagnosed as stage II (Ann-Arbor staging system) and most of the patients received multi-agent chemotherapy or chemoradiotherapy. The 3-year overall survival rate for SN-DLBCL and SN-DLBCL groups was roughly 90%, 88.9%, respectively and the average of disease-free survival period was approximately 41.1 and 22.1 months, respectively, after initiation of treatment. Conclusion We found that sinonasal malignant lymphoma is highly responsive to chemo or chemoradiotherapy. Early accurate diagnosis is important as early-stage patients receiving therapy may benefit from chemo or chemoradiotherapy. Our clinical data showed that in ambiguous situations, wide excision should be considered for diagnosis.

Background and Objectives: Sinonasal malignant lymphoma is rare and aggressive. Its low incidence has made detailed studies on epidemiology, survival, and consensus treatment modalities a challenge, and also has limited developing standardized protocols for diagnosis and management. This study analyzes the clinical factors of patients diagnosed with sinonasal malignant lymphoma and their treatment modalities to understand therapeutic outcome and prognostic factors.Subjects and Method The medical records of patients diagnosed between 2011 and 2020 as sinonasal (SN) malignant lymphoma (extranodal NK/T cell lymphoma [ENKTL]/diffuse large B cell lymphoma [DLBCL]) in Seoul national university hospital were retrospectively reviewed. Results: A total 42 patients were included in the study. Of those, 30 patients were SN-ENKTL, 12 patients were SN-DLBCL. The mean age of SN-DLBCL and SN-DLBCL groups was 52.8±14.4, 60.8±12.4, respectively. The main chief complaint was nasal obstruction (54%). Approximately 75% were diagnosed as stage II (Ann-Arbor staging system) and most of the patients received multi-agent chemotherapy or chemoradiotherapy. The 3-year overall survival rate for SN-DLBCL and SN-DLBCL groups was roughly 90%, 88.9%, respectively and the average of disease-free survival period was approximately 41.1 and 22.1 months, respectively, after initiation of treatment. Conclusion We found that sinonasal malignant lymphoma is highly responsive to chemo or chemoradiotherapy. Early accurate diagnosis is important as early-stage patients receiving therapy may benefit from chemo or chemoradiotherapy. Our clinical data showed that in ambiguous situations, wide excision should be considered for diagnosis.

Background and Objectives: Sinonasal malignant lymphoma is rare and aggressive. Its low incidence has made detailed studies on epidemiology, survival, and consensus treatment modalities a challenge, and also has limited developing standardized protocols for diagnosis and management. This study analyzes the clinical factors of patients diagnosed with sinonasal malignant lymphoma and their treatment modalities to understand therapeutic outcome and prognostic factors.Subjects and Method The medical records of patients diagnosed between 2011 and 2020 as sinonasal (SN) malignant lymphoma (extranodal NK/T cell lymphoma [ENKTL]/diffuse large B cell lymphoma [DLBCL]) in Seoul national university hospital were retrospectively reviewed. Results: A total 42 patients were included in the study. Of those, 30 patients were SN-ENKTL, 12 patients were SN-DLBCL. The mean age of SN-DLBCL and SN-DLBCL groups was 52.8±14.4, 60.8±12.4, respectively. The main chief complaint was nasal obstruction (54%). Approximately 75% were diagnosed as stage II (Ann-Arbor staging system) and most of the patients received multi-agent chemotherapy or chemoradiotherapy. The 3-year overall survival rate for SN-DLBCL and SN-DLBCL groups was roughly 90%, 88.9%, respectively and the average of disease-free survival period was approximately 41.1 and 22.1 months, respectively, after initiation of treatment. Conclusion We found that sinonasal malignant lymphoma is highly responsive to chemo or chemoradiotherapy. Early accurate diagnosis is important as early-stage patients receiving therapy may benefit from chemo or chemoradiotherapy. Our clinical data showed that in ambiguous situations, wide excision should be considered for diagnosis.

Isolated myeloid sarcoma is a rare extramedullary manifestation, characterized by the presence of myeloid blasts in the body and occurring without bone marrow involvement. While the isolated myeloid sarcoma involvement in the nasal cavity of adults has been reported sparsely, there have been no documented cases involving children in South Korea. Given its rarity, diagnosing isolated myeloid sarcoma is challenging without resorting to a biopsy accompanied by a comprehensive panel of immunohistochemistry. In this context, we present a case of a 5-yearold child diagnosed with isolated myeloid sarcoma situated within the right nasal cavity. Notably, this case is unique as there is no evidence of bone marrow invasion or underlying hematological disorders.

Objectives: . This study evaluated the surgical outcomes of patients with Beckwith-Wiedemann syndrome who underwent tongue-reduction surgery and analyzed whether the malocclusion and mandibular prognathism caused by macroglossia could be improved. Methods: . A retrospective medical record review was performed for 11 patients with Beckwith-Wiedemann syndrome whose macroglossia was surgically treated. Demographic data, symptoms and signs, and intraoperative and postoperative surgical outcomes were evaluated. Surgery was performed by a single surgeon using the “keyhole” technique, involving midline elliptical excision and anterior wedge resection. Preoperative and postoperative plain skull lateral X-rays were evaluated to assess prognathism improvement. Results: . The median age at the time of surgery was 35.09 months, and the ratio of males to females was 4:7. The median surgical time was 98±31.45 minutes, and the median duration of the postoperative intensive care unit stay was 3.81±2.4 days. There were no airway complications. Two patients (18.2%) had postoperative wound dehiscence; however, there was no nerve damage, recurrence, or other complications. Among the five patients who underwent postoperative speech evaluation, all showed normal speech development, except one patient who had brain dysfunction and developmental delay. Measurements of the A point-nasion-B point (ANB) angles and sella-nasion-B point (SNB) angles (point A is the most concave point of the anterior maxilla; point B is the most concave point on the mandibular symphysis) on plain X-rays showed a significant decrease in the postoperative SNB angle (P <0.001) and a significant increase in the ANB angle (P <0.011). Conclusion . Tongue-reduction surgery is an effective and safe technique for severe forms of macroglossia associated with Beckwith-Wiedemann syndrome. In addition, it improves mandibular prognathism in young Beckwith-Wiedemann syndrome patients with macroglossia.

Background and Objectives: The purpose of the mastoidectomy and tympanoplasty is to improve the hearing by removing the middle ear lesion and reconstructing the hearing mechanism. The purpose of this study is to verify whether several factors, including the presence of mastoidectomy can affect the hearing outcome of tympanoplasty patients.Subjects and Method From 1989 to 2018, 1260 patients with chronic otitis media who had been followed up for more than 6 months after type 1 tympanoplasty were selected. The each patient group was divided into 2 groups based on the last audiometry; Group A (post operative air-bone gap [ABG] ≤10 dB HL) and Group B (post operative ABG >10 dB HL). We analyzed the various factors including patency of E-tube or mastoid aeration for each group to figure out which factors affect the post operative hearing outcome. Results: In conclusion, even with mastoidectomy, the final hearing after surgery was worse than that of the group who underwent tympanoplasty only (final ABG; tympanoplasty only vs. tympanoplasty with mastoidectomy; 6.59±9.09 vs. 9.71±8.94). In both with and without mastoidectomy group, the size of the perforation and external ear canal diameter before surgery did not affect the final hearing outcome. On the otherhand, in the group with mastoidectomy, mastoid pneumatization and E-tube patency affected the postoperative prognosis, but not in the case without mastoidectomy. Conclusion In this study, the factors affecting postoperative hearing success were analyzed. The results can be used to predict the postoperative hearing prognosis and to help select surgical treatment.

There has been continuous effort to prevent transfusion-transmitted infection (TTI). Strategies to prevent TTI can be divided into two components: first, determining donor eligibility, and second, managing bacterial contamination of blood products. To determine donor eligibility, medical history taking and screening tests for infectious diseases should be performed. To prevent bacterial contamination, blood collection process should be aseptic, tests for bacterial detection should be performed, and an application of pathogen reduction technology should also be considered. In this review, screening test items and methods, including nucleic acid amplification tests for determining donor eligibility, and precautions for blood collection, bacterial detection methods, and pathogen reduction technology for the prevention of bacterial contamination of blood products were discussed in detail.
Communicable Diseases ; Donor Selection ; Humans ; Mass Screening ; Medical History Taking ; Nucleic Acid Amplification Techniques ; Tissue Donors

BACKGROUND AND OBJECTIVES: Pneumatization of air cells in the mastoid bone is decreased in chronic otitis media (COM). A decrease in the size of the external auditory canal (EAC) is also found frequently in patients with COM, but this has been little studied. We compared the size of affected bony EACs and the contralateral side in patients with single-side COM using high-resolution computed tomography. SUBJECTS AND METHODS: In total, 99 patients with single-side COM were included. Four indicators related to the size of the bony EAC and IAC were measured using high-resolution computed tomography: the axial and coronal lengths of the tympanic membrane, the length of the isthmus, and the area of the bony ear canal. We also compared both internal auditory canals as negative controls. These assessments were made by radiologists who were blinded to the objective of this study. RESULTS: In patients with single-side COM, the axial length of the tympanic membrane was significantly shorter than normal, and the volume of the EAC was also significantly smaller. The length of the isthmus of the EAC was shorter on the affected side, but the difference was not significant. The IAC volume showed no difference between the two sides. CONCLUSIONS: COM affects general temporal bony development, including the bony EAC and mastoid bone. Therefore, whether to correct this should be considered when preparing for COM surgery.
Ear Canal* ; Humans ; Mastoid ; Otitis Media* ; Otitis* ; Tympanic Membrane