Background Lung cancer is the primary cause of cancer related death worldwide, early detection of the disease contributes to early diagnosis and reduce the incidence of death from lung cancer. Therefore, an effective and non-invasive method for early diagnosis of lung cancer is urgently needed. Methods To evaluate the diagnostic performance of circulating genetically abnormal cells(CAC) in early lung cancer, a total of 63 participants who completed CAC detection by ZHUHAI SANMED BIOTECH INC. and obtained pathological results from January to December 2020 were included in our study, which were divided into 50 cases of lung cancer ,13 cases of benign lung disease. The levels of lung cancer-related markers in peripheral blood and chest computed tomography(CT) imaging characteristics of these patients were collected before pathological acquisition. ResultsThe positive rate of CAC was 90.0% in lung cancer group and 23.1% in benign lung disease group, the difference was statistically signi cant (P 0.01).The area under the receiver operating characteristic (ROC) curve of CAC was 0.837, the sensitivity was 90%, and the speci city was 76.9%.The area under the ROC curve and sensitivity were both higher than the combined or single serum tumor marker test.Conclusions This study preliminarily concludes that CAC, as a non-invasive test, has high sensitivity and speci city for early diagnosis of lung cancer, which is expected to help early detection of disease in lung cancer patients and has certain help and guiding signi cance for clinical work.

Background Lung cancer is the primary cause of cancer related death worldwide, early detection of the disease contributes to early diagnosis and reduce the incidence of death from lung cancer. Therefore, an effective and non-invasive method for early diagnosis of lung cancer is urgently needed.Methods To evaluate the diagnostic performance of circulating genetically abnormal cells(CAC) in early lung cancer, a total of 63 participants who completed CAC detection by ZHUHAI SANMED BIOTECH INC. and obtained pathological results from January to December 2020 were included in our study, which were divided into 50 cases of lung cancer ,13 cases of benign lung disease. The levels of lung cancer-related markers in peripheral blood and chest computed tomography(CT) imaging characteristics of these patients were collected before pathological acquisition.Results The positive rate of CAC was 90.0% in lung cancer group and 23.1% in benign lung disease group, the difference was statistically significant (P＜0.01).The area under the receiver operating characteristic (ROC) curve of CAC was 0.837, the sensitivity was 90%, and the specificity was 76.9%.The area under the ROC curve and sensitivity were both higher than the combined or single serum tumor marker test.Conclusions This study preliminarily concludes that CAC, as a non-invasive test, has high sensitivity and specificity for early diagnosis of lung cancer, which is expected to help early detection of disease in lung cancer patients and has certain help and guiding significance for clinical work.

This study aimed to discuss clinical characteristics, therapy, and antibody prevalence in epilepsy (APE) score for short-term, frequent epileptic seizures in children who are autoimmune-antibody negative and respond well to immunotherapy. The clinical characteristics, imaging manifestations, electrophysiology, and effective treatment plan of 9 children who met the above criteria were retrospectively analyzed in the Pediatric Neurology Department of Qilu Hospital at Shandong University from June 2019 to December 2021. All 9 patients (6 boys, 3 girls; aged 13 months−11 years and 5 months, median 3.5 years) had acute-onset seizures within 3 months. All had previous normal growth/development with no family history of disease. Seizure types were focal motor seizures (6), generalized tonic-clonic seizures (2), and generalized secondary-to-focal (1); occurred >10 times/day; and lasted <1 min/episode. Formal treatment with ≥2 types of antiseizure medicine (ASM) achieved an unsatisfactory effect. Cranial magnetic resonance imaging showed an abnormal result in 1 case. The APE score was ≥4 in 3 cases and <4 in 6 cases. All patients experienced symptomatic relief with immunotherapy; subsequently, 8 patients were free of recurrence and 1 had significantly reduced seizure frequency. Autoimmune antibody screening is recommended for children who were previously well and have acute-onset epilepsy; high frequency, short-duration seizures; no good response to 2 types of ASM; and other etiologic factors excluded, even with APE score <4. Even with negative autoimmune antibody results, the possibility of autoimmune epilepsy should be considered for urgent initiation of immunotherapy, which can achieve good results.