The Velum, Oropharynx, Tongue base and Epiglottis (VOTE) classification on drug-induced sleep endoscopy (DISE) is used widely for obstructive sleep apnea (OSA) syndrome, though research into comparative physical examinations with VOTE on DISE is still limited. The aim of this study was to evaluate the relationship between the findings of physical examinations and DISE in patients with OSA. Fifty-five patients with OSA were enrolled in this retrospective study. All of the patients received clinical explorations including a Brodsky classification, a modified Mallampati score (MMS), a modified Friedman’s staging system, and a Muller’s test. Drug-induced sleep endoscopy was further evaluated in the operating room. There were significant relationships between Brodsky classification, modified Friedman’s staging system, Muller’s test and oropharynx collapse during DISE (p < 0.05). Brodsky classification, MMS, modified Friedman’s staging system and retropalatal lateral-to-lateral (L–L) collapse of Muller’s test were significantly correlated with VOTE count (p < 0.05). The concordance between VOTE under DISE and Brodsky classification or modified Friedman’s staging system was moderate. In contrast, the concordance between VOTE under DISE and MMS or Muller’s test was slight. The study revealed that Brodsky classification and Friedman staging had a significant relationship with DISE on the velum and oropharynx, but the level of tongue base is uncertain between DISE and MMS. Correlation of awake evaluation of tongue base is still not correlated to the DISE findings. Pre-treatment evaluation of DISE is still warranted.
Background: Castleman disease and lymphoma each have a distinct treatment plan; however, they share the same features on contrast-enhanced computed tomography. Methods: To assess the quantitative outcomes of Castleman disease versus lymphoma using contrast-enhanced computed tomography based on Hounsfield units (HU). We retrospectively reviewed eight patients with unicentric Castleman disease and 30 patients with lymphoma based on pathological diagnosis at China Medical University Hospital between 2015 and 2020. Preoperative computed tomography with contrast scans was reviewed, and the HU of each tumor were measured. Results: This study included eight patients with unicentric Castleman disease (four men and four women; mean age, 33 years) and 25 patients with lymphoma (11 men and 14 women; mean age, 53 years). There was no significant difference in heterogeneity between the two diseases (0.161 ± 0.052 vs 0.239 ± 0.063, p = 0.22); however, enhancement in Castleman disease was higher than that in lymphoma (126.40 ± 31.90 vs 74.19 ± 7.11, p < 0.001), providing a very good diagnostic tool (cutoff point at 88.5-91.3, sensitivity 0.86/specificity 0.88). Furthermore, we found a highly linear relationship in Castleman disease, which was not noted in lymphoma. Conclusion:The value of HU provides a good diagnostic tool for the differential diagnosis of Castleman disease versus lymphoma in the neck lymph nodes. Considering the linear relationship in Castleman disease, an increasingly accurate differential diagnosis can be made.
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