Objective:To evaluate the feasibility of using the domestic ArcherQA system for fast and simplified independent verification of CyberKnife (CK) stereotactic radiotherapy (SRT) plans.Methods:SRT plans of 57 patients treated with CK at Tianjin Medical University Cancer Institute and Hospital from August 2021 to August 2022 were retrospectively analyzed, including 15 intracranial, 30 pulmonary, and 12 abdominal tumors cases. Point-dose and planar-dose verifications were performed using an ionization chamber and radiochromic films embedded in a homogeneous phantom, and the results were compared with those calculated by the treatment planning system (TPS). The localization CT images and corresponding SRT plans were imported into the ArcherQA system for independent dose verification and analysis. The correlation between ArcherQA results and phantom measurements was analyzed, with comparisons of target mean dose differences and γ pass rates.Results:Phantom measurement results showed, the measured point-dose differences for intracranial, lung, and abdominal plans were -0.94% ± 3.22%, 1.92% ± 2.05%, and 2.12% ± 0.77%, respectively. The mean dose differences in target dose calculation between ArcherQA and TPS: intracranial in the gross tumor volume (GTV) regions were 0.34% ± 2.21%, lung tumor GTV were -2.47% ± 2.46%, and abdominal tumor GTV were 0.80% ± 2.61%, respectively. Among them, the abdominal GTV region showed the highest correlation between ArcherQA and measured results ( r=0.78). The average two-dimensional γ pass rates (2 mm/2%, threshold=10%) measured using phantom films were 95.92% ± 2.35% for intracranial, 95.70% ± 2.74% for lung, and 96.74% ± 3.41% for abdominal tumors plans, respectively. The three-dimensional ArcherQA results showed comparable γ pass rates (1 mm/2%, threshold=10%) for lung and abdominal GTV and PTV regions, with similar medians and data dispersion to film measurements. Conclusions:The ArcherQA system enables rapid and efficient independent dose verification of CK SRT plans without the need for additional hardware. The verification results show good correlation with phantom measurements, supporting its potential as an auxiliary quality assurance tool in clinical CK SRT implementation.

Objective:To evaluate the feasibility of using the domestic ArcherQA system for fast and simplified independent verification of CyberKnife (CK) stereotactic radiotherapy (SRT) plans.Methods:SRT plans of 57 patients treated with CK at Tianjin Medical University Cancer Institute and Hospital from August 2021 to August 2022 were retrospectively analyzed, including 15 intracranial, 30 pulmonary, and 12 abdominal tumors cases. Point-dose and planar-dose verifications were performed using an ionization chamber and radiochromic films embedded in a homogeneous phantom, and the results were compared with those calculated by the treatment planning system (TPS). The localization CT images and corresponding SRT plans were imported into the ArcherQA system for independent dose verification and analysis. The correlation between ArcherQA results and phantom measurements was analyzed, with comparisons of target mean dose differences and γ pass rates.Results:Phantom measurement results showed, the measured point-dose differences for intracranial, lung, and abdominal plans were -0.94% ± 3.22%, 1.92% ± 2.05%, and 2.12% ± 0.77%, respectively. The mean dose differences in target dose calculation between ArcherQA and TPS: intracranial in the gross tumor volume (GTV) regions were 0.34% ± 2.21%, lung tumor GTV were -2.47% ± 2.46%, and abdominal tumor GTV were 0.80% ± 2.61%, respectively. Among them, the abdominal GTV region showed the highest correlation between ArcherQA and measured results ( r=0.78). The average two-dimensional γ pass rates (2 mm/2%, threshold=10%) measured using phantom films were 95.92% ± 2.35% for intracranial, 95.70% ± 2.74% for lung, and 96.74% ± 3.41% for abdominal tumors plans, respectively. The three-dimensional ArcherQA results showed comparable γ pass rates (1 mm/2%, threshold=10%) for lung and abdominal GTV and PTV regions, with similar medians and data dispersion to film measurements. Conclusions:The ArcherQA system enables rapid and efficient independent dose verification of CK SRT plans without the need for additional hardware. The verification results show good correlation with phantom measurements, supporting its potential as an auxiliary quality assurance tool in clinical CK SRT implementation.

Since cemiplimab was approved by United States Food and Drug Administration in 2018, anti-programmed cell death receptor-1 antibodies have been considered as the first-line systemic therapy for advanced cutaneous squamous cell carcinoma. This review focuses on current clinical application of targeted therapy, immunotherapy, targeted immunotherapy and gene therapy for cutaneous squamous cell carcinoma.

Many nail changes have been found to be associated with systemic diseases, such as acropachy, koilonychia, splinter hemorrhages, leukonychia, yellow nail syndrome, Beau's lines, etc., so they may provide clues for the diagnosis of systemic disorders. However, studies on nail damages secondary to systemic diseases are rare, and their pathogenesis is still unclear. This review summarizes the progress in the pathogenesis of nail damages in systemic diseases, so as to improve their diagnosis and treatment.

Cutaneous squamous cell carcinoma (cSCC) is the second most common skin tumor, and metastatic cSCC usually has a poor prognosis. Many factors influence the metastasis of cSCC, including primary lesion diameter, anatomical location, immunosuppression, clinical types, depth of tumor invasion, degree of differentiation, and vascular, perineural, and lymphatic invasion. Multiple intracellular signaling pathways drive tumor metastasis, such as Wnt/β-catenin, transforming growth factor β, and the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin pathway. This review discusses the factors influencing cSCC metastasis and the role of the above signaling pathways in the metastatic mechanisms of cSCC, providing new insights for the treatment of metastatic cSCC.

Since cemiplimab was approved by United States Food and Drug Administration in 2018, anti-programmed cell death receptor-1 antibodies have been considered as the first-line systemic therapy for advanced cutaneous squamous cell carcinoma. This review focuses on current clinical application of targeted therapy, immunotherapy, targeted immunotherapy and gene therapy for cutaneous squamous cell carcinoma.

Many nail changes have been found to be associated with systemic diseases, such as acropachy, koilonychia, splinter hemorrhages, leukonychia, yellow nail syndrome, Beau's lines, etc., so they may provide clues for the diagnosis of systemic disorders. However, studies on nail damages secondary to systemic diseases are rare, and their pathogenesis is still unclear. This review summarizes the progress in the pathogenesis of nail damages in systemic diseases, so as to improve their diagnosis and treatment.

Cutaneous squamous cell carcinoma (cSCC) is the second most common skin tumor, and metastatic cSCC usually has a poor prognosis. Many factors influence the metastasis of cSCC, including primary lesion diameter, anatomical location, immunosuppression, clinical types, depth of tumor invasion, degree of differentiation, and vascular, perineural, and lymphatic invasion. Multiple intracellular signaling pathways drive tumor metastasis, such as Wnt/β-catenin, transforming growth factor β, and the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin pathway. This review discusses the factors influencing cSCC metastasis and the role of the above signaling pathways in the metastatic mechanisms of cSCC, providing new insights for the treatment of metastatic cSCC.

Objective To compare the treatment of malignant obstructive jaundice(MOJ)with trocar versus Seldinger technique for percutaneous transhepatic biliary drainage(PTBD).Methods The imaging data of 80 patients with MOJ were analyzed retrospectively and divided into trocar group(30 cases)and Seldinger group(50 cases).The primary outcomes were technical success rate,efficacy and complication.Results The first success rate was higher in the Seldinger group than the trocar group(98％vs 83.3％;P=0.03).The clinical effect was similar.Conclusion Both trocar and Seldinger technique for PTBD are equally effective to relieve obstructive jaundice.Seldinger technique was associated with a high first success rate.

Non-infectious inflammatory disorders of the nail apparatus are common in clinical practice, which often cause abnormal color, shape and structure of the nail plate, including nail psoriasis, nail alopecia, nail lichen planus, nail changes caused by eczema, etc. However, they are often difficult to diagnose due to the diversity of nail signs in the same disease and similarity of nail signs among different disorders. This review summarizes relationships between nail plate manifestations and systemic dermatoses, related differential diagnoses, and progress in diagnosis and treatment of non-infectious inflammatory nail diseases.