Diagnostic performance of spectral Doppler in acute appendicitis with an equivocal Alvarado score.

Purpose: This study aims to evaluate the added value of duplex Doppler examination to the routinely graded compression grayscale ultrasound (US) for patients with suspected acute appendicitis (AA) in correlation with surgical management outcomes.

Methods: The study lasted from January 2020 to March 2021. Throughout that period, patients who had suspected appendicitis were included with a visible appendix in the grayscale US.

Pulmonary vasculitis in Behçet's disease: reference atlas computed tomography pulmonary angiography (CTPA) findings and risk assessment-management proposal.

Background And Aim:  Pulmonary artery aneurysms (PAAs) are the most well-defined type of pulmonary vascular complication in Behçet's disease (BD).The aim of this study is to analyze which CT pulmonary angiography (CTPA) signs are associated with serious morbidity and mortality.

Methods: The study included 42 BD patients with pulmonary vascular complications.

Rare sites of metastases in patients with differentiated thyroid carcinoma and added value of SPECT/CT over planar whole body radioactive iodine scan.

Background: Being aware of the unusual or rare location of thyroid metastases helps in early diagnosis and proper patient management. Rare metastases (RM) can be missed resulting in diagnostic pitfalls and delayed treatment. The use of single-photon emission computed tomography/computed tomography (SPECT/CT) imaging in the follow-up of differentiated thyroid cancer (DTC) patients provides precise anatomical localization and characterization of RM that may be missed or misinterpreted in planar whole body iodine-131 (WBI) scan.

Transient regional osteoporosis of the ankle with shifting bone marrow edema pattern within the joint.

We describe a case of bone marrow edema (BME) shifting within one ankle joint in a 35-year-old - male patient. He presented with increasing pain and no history of trauma. Clinically no local swelling was found and laboratory findings and plain x-ray studies were normal.

Computed tomography pulmonary angiography (CTPA) in Behçet's disease patients: a remarkable gender gap and time to refine the treatment strategy.

Objective: The aim of the work was to delineate the computed tomography pulmonary angiography (CTPA) findings in Behçet's disease (BD) patients with and without chest manifestations.

Patients And Methods: The study included 122 BD adults recruited from 5 Teaching University Hospitals in Egypt of those who agreed to perform a CTPA. The Arabic version of BD current activity form (BDCAF) and BD damage index (BDI) were assessed.

An update on advances in magnetic resonance imaging of multiple system atrophy.

In this review, we describe how different neuroimaging tools have been used to identify novel MSA biomarkers, highlighting their advantages and limitations. First, we describe the main structural MRI changes frequently associated with MSA including the 'hot cross-bun' and 'putaminal rim' signs as well as putaminal, pontine, and middle cerebellar peduncle (MCP) atrophy. We discuss the sensitivity and specificity of different supra- and infratentorial changes in differentiating MSA from other disorders, highlighting those that can improve diagnostic accuracy, including the MCP width and MCP/superior cerebellar peduncle (SCP) ratio on T1-weighted imaging, raised putaminal diffusivity on diffusion-weighted imaging, and increased T2* signal in the putamen, striatum, and substantia nigra on susceptibility-weighted imaging.