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Background: To explore the clinical and laboratory features, therapy and prognosis of Kikuchi–Fujimoto disease (KFD) in the cervical region. Methods: We retrospectively reviewed the medical records of 134 patients who were diagnosed and treated with KFD from January 2000 to May 2022 in Fujian Medical University Union Hospital (Fujian, China). Their clinical characteristics, affected lymph node size, imaging examinations, and laboratory study results were analyzed. Results: The mean patient age was 24.9 years, and the male–female ratio was 1:1.73. Fever (55.2%, n = 74) was the most common clinical manifestation. Leukopenia (49.3%) was the commonest reported laboratory abnormality. A majority (65.7%) of the 134 patients presented with bilateral nodal involvement. Conclusion: KFD should be considered as a possible diagnosis in a female patient under the age of 30 presenting with cervical lymphadenopathy, fever, leukopenia, and elevated LDH. Level of Evidence: 4. [ABSTRACT FROM AUTHOR]

Background: Extranodal natural killer/ T‐cell lymphoma (ENKTL) is a rare malignant tumor. This study aimed to develop a predictive nomogram and a web‐based survival rate calculator for dynamically predicting the survival of patients with sinonasal ENKTL (SN‐ENKTL). Methods: This study investigated patients (n = 134) with SN‐ENKTL who had been initially treated in our hospital between Jan 2008 and Dec 2016. The patients were randomly divided into training and validation cohorts, in a 7:3 ratio. Independent prognostic factors were identified and integrated to build a predictive nomogram and a web‐based calculator using the Cox‐regression model. The nomogram was evaluated by consistency index and calibration curve. Results: Age, lactate dehydrogenase, hemoglobin, Epstein–Barr virus DNA, and Ann Arbor stage were identified as independent risk factors. We constructed a predictive nomogram for survival and a web‐based calculator (https://taiqinwang.shinyapps.io/DynNomapp/). Conclusion: This study developed a prognostic model and a web‐based calculator specifically focused on SN‐ENKTL for otolaryngologists to use to facilitate timely treatment decisions for the disease. Level of Evidence: 4 Laryngoscope, 133:1645–1651, 2023 [ABSTRACT FROM AUTHOR]