Tigroid Enhancement: A Characteristic Enhancement Pattern of the Cerebellar Hemisphere on MRI With Intracranial Dural Arteriovenous Fistulas.

Purpose: This study aims to investigate a characteristic cerebellar hemisphere enhancement pattern on magnetic resonance imaging (MRI) that could aid in early and specific diagnosis of intracranial dural arteriovenous fistulas (DAVFs).

Materials And Methods: Pretreatment MR images of 57 patients with intracranial DAVFs between January 1, 2017, and February 28, 2023, were retrospectively analyzed. A total of 128 patients with confirmed alternative cerebellar lesions during the same period were included as a control group.

Comprehensive analysis to identify GNG7 as a prognostic biomarker in lung adenocarcinoma correlating with immune infiltrates.

G Protein Subunit Gamma 7 (GNG7), an important regulator of cell proliferation and cell apoptosis, has been reported to be downregulated in a variety of tumors including lung adenocarcinoma (LUAD). However, the correlation between low expression of GNG7 and prognosis of LUAD as well as the immune infiltrates of LUAD remains unclear. The samples were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO).

IgG4-related disease: a case report with duration of more than 16 years and review of literature.

Introduction: IgG4-related disease was first reported in 2001 and was officially named in 2010. It is now considered as a systemic disease that might affect any organ system. The characteristic pathological changes of IgG4-related disease are extensive infiltration of IgG4-positive plasma cells.

[Value of 3T magnetic resonance dynamic contrast-enhanced and diffusion-weighted imaging in differential diagnosis of musculoskeletal tumors].

Objective: To evaluate the value of magnetic resonance dynamic contrast-enhanced (MR-DCE) and magnetic resonance diffusion-weighted imaging (MR-DWI) in the differentiation of benign and malignant musculoskeletal tumors.

Methods: Sixty-three patients with pathologically confirmed musculoskeletal tumors were examined with MR-DCE and MR-DWI. Using single shot spin echo planar imaging sequence and different b values of 400, 600, 800 and 1000 s/mm(2), we obtained the apparent diffusion coefficient (ADC) of the lesions.

[Diagnosis of solid-pseudopapillary tumor of the pancreas and the value of post-processing in the surgery by spiral CT].

Objective: To study the CT manifestations of the solid-pseudopapillary tumor of the pancreas (SPTP) and to explore the value of post-processing in the surgery.

Methods: Clinical and CT features of 14 patients with SPTP proved pathologically were retrospectively analyzed.

Results: (1) 13 tumors were composed of different proportions of solid and cystic parts and 1 tumor was composed of solid part only.

Preoperative evaluation of venous systems with computed tomography venography in parasagittal meningiomas.

Objective: Parasagittal meningiomas (PSM) may pose a difficult surgical challenge because venous patency and collateral anastomoses have to be clearly defined for correct surgical planning. The aim of this study was to study the diagnostic accuracy of computed tomography venography (CTV) in assessing the superior sagittal sinus (SSS) obstruction and venous collaterals.

Methods: Twenty-four patients undergoing surgery for meningiomas located adjacent to the SSS were prospectively evaluated.

[Multi-slice helical CT perfusion imaging in evaluating intracranial neoplasms and tumor-like lesions].

Objective: To investigate the clinical value of CT perfusion in diagnosing and assessing intracranial neoplasms and tumor-like lesions.

Methods: 16-slice helical CT perfusion imaging was performed in 56 patients who were clinically suspected to have intracranial neoplasm or tumor-like lesion. With a GE-Light Speed 16-slice helical CT scanner, routine plain-CT scanning was performed to localize the central slice of the lesion.

[Malignant tumor with false negative 18F-FDG PET image].

Objective: To investigate the FDG uptake characteristics, the factors affecting 18F-FDG uptake and the extra CT diagnostic value of 18F-FDG PET/CT scan in the malignant tumor with false negative 18F-FDG PET image.

Methods: The data of PET/CT image in 17 patients with various kinds of cancers were reviewed and analyzed by visual observation and semi-quantity analysis ( SUV). The results were compared with the CT and histopathological diagnosis, respectively.