A rare double-delta sign in a bucket handle tear of lateral meniscus: A case report.

The two most common causes of a meniscus tear are trauma and degenerative processes. Meniscus tears clinically present with pain, swelling and limited mobility of the knee joint. Bucket handle tear (BHT) is a full-thickness tear of the meniscus usually involving the inner portion of the medial meniscus. It is three times more likely to occur in the medial meniscus than in the lateral meniscus. Various signs such as the double anterior cruciate ligament (ACL) sign, double posterior cruciate ligament (PCL) sign, and triple PCL sign have helped radiologists diagnose this tear on magnetic resonance imaging (MRI). This case report is about a BHT of the less commonly involved lateral meniscus identified with a double-delta sign on MRI which has rarely been reported. A comparison of various radiological signs reported in the literature has been made, which will aid radiologists in diagnosis and have importance for the medical literature.

Predictive Value of CT Brain Perfusion Studies in Acute Ischemic Infarct Taking MRI Stroke Protocol As Gold Standard.

Background Acute ischemic stroke is the leading cause of serious chronic disability worldwide. Imaging plays a key role in early diagnosis and intervention, thus reducing mortality and morbidity related to ischemic stroke. Computed tomography (CT) perfusion study is a valuable imaging tool for the assessment of acute infarction. The objective of this study was to determine the predictive value of CT perfusion in diagnosing acute ischemic infarction taking Magnetic Resonance Imaging (MRI) stroke protocol (including Diffusion Weighted Imaging (DWI)) as a gold standard. Methods The cross-sectional validation study was conducted at a teaching hospital in Islamabad from June 2019 to December 2019. The study comprised a total of 125 patients of either gender with suspected acute ischemic stroke. The patients were scanned for CT perfusion and MRI stroke protocol on the same day. Scans were reported separately for the detection of acute ischemic infarction by the same consultant radiologist. The predictive value of CT perfusion was calculated accordingly. Results Of the 125 patients, 58% were male and 42% were female. The age of selected patients ranged between 38 to 70 years with a mean age of 56.12 ± 9.69 years. Acute ischemic infarction was detected in 86 (69%) patients by CT perfusion study and in 120 (96%) patients by MRI stroke protocol. The positive predicted value of CT perfusion for the detection of acute infarction was calculated as 98.83 and the negative predicted value was 10.25. Conclusion CT perfusion study provides adequate sensitivity and specificity with good predictive value in the detection of acute ischemic infarct in stroke patients. This widely available and time-effective modality aids in the triage of patients for immediate endovascular intervention leading to maximal neurological benefit and improving outcomes.

High-Resolution CT Chest Findings in Suspected COVID-19 Pneumonia Patients With Negative Real-Time Polymerase Chain Reaction Assay.

Objective The study was conducted with the objective of describing High-resolution computed tomography (HRCT) chest findings of clinically suspected COVID-19 patients having a negative real-time polymerase chain reaction (RT-PCR) assay as well as prevalence and distribution of the HRCT chest manifestations consistent with the diagnosis of COVID-19 pneumonia. Methods This descriptive cross-sectional study was conducted prospectively on a total of 48 patients with high clinical suspicion for COVID-19 and a negative RT-PCR assay that was presented to the Diagnostic Radiology Department of Capital Hospital, Islamabad from July 2020 to December 2020. These patients were included via non-probability consecutive sampling, had a positive history of contact with a known COVID-19 patient and/or any two of the following signs and symptoms; fever, cough, malaise, body aches, arthralgia, new-onset loss of taste and smell, and dyspnea or oxygen saturation less than 85%. A detailed history was sought after informed consent and all these patients underwent non-contrast HRCT chest scans that were reported by an experienced consultant radiologist. The scans showing positive features for COVID-19 pneumonia were assessed for the nature and distribution of the disease. Results Amongst 48 suspects with negative RT-PCR assay, 38 (79.2%) showed ground-glass opacities, a hallmark feature of COVID-19 pneumonia. A total of 22 (57.89%) of these 38 patients had ground-glass opacities with a crazy-paving pattern, nine (23.68%) mixed ground-glass opacities with consolidation, and seven (18.42%) had pure ground-glass opacities. Among these 79.2% suspects, ground-glass opacities were multifocal in 37 (97.37%), bilateral in 35 (92.10%), peripheral in 36 (94.74%), and dorsally located in 32 (81.6%) cases. Subpleural atelectatic bands were seen in 18 (47.36%) of these, bronchovascular markings were prominent in 15 (39.47%), and reverse halo sign was positive in nine (23.68%) cases. Out of the rest of the cases, three were diagnosed as interstitial lung disease, two as chronic lung disease, and one as active pulmonary tuberculosis. Conclusion The majority of clinically suspected cases for COVID-19 showed hallmark findings on non-contrast HRCT chest scans in keeping with coronavirus disease regardless of a negative RT-PCR assay.

Speciality preference with respect to gender among medical students of Pakistan.

This research was conducted to determine the impact of gender and other factors in choosing a medical speciality. This cross-sectional study was conducted from 5th February 2017 to 5th July 2017 at different Medical Colleges and Teaching Hospitals. Students from fourth, final year and House Officers were enrolled using a self made questionnaire. Data was analyzed using SPSS 22. Of the 314 participants, 171(54.5%) were males and 143(45.5%) were females. Majority chose Surgery 90(28.7%), and Internal Medicine 58(18.5%). Only 1(0.3%) participant chose Public Health as a career speciality. The main reason for choice for both genders was "Interest in Content" and "Good Salary". Research shows a shift in trend of women towards Surgery and Internal Medicine rather than Gynaecology and Paediatrics, which indicates more competition in Surgery in near future. Main influencing factors for choice were personal interest and good salary. Students should be counselled regarding career in Public Health and Psychiatry.