Solitary plasmacytoma: an unusual presentation.

This case highlights the importance of thoroughly investigating incidental findings, particularly in patients with unexplained symptoms. Solitary plasmacytoma, though rare and accounting for 4-5% of plasma cell dyscrasias, can occur outside the spine and may present without systemic symptoms. Early diagnosis through imaging and biopsy is crucial for appropriate management, as these lesions can be effectively treated if identified early.

Retrospective analysis of CD4 count trends in South Africa.

Background: South Africa has the largest HIV epidemic globally. Despite the scale-up of antiretroviral therapy, people living with HIV are still presenting with low CD4 counts.

Objectives: This study assessed CD4 trends.

Clinical presentation, imaging features and differential diagnoses of an Amyand hernia complicated by acute appendicitis.

Amyand hernias are unusual inguinal hernias that contain the vermiform appendix. Rarely, an Amyand hernia can be complicated by acute appendicitis and present a diagnostic dilemma. Herein, we present the case of a complicated Amyand hernia that was initially diagnosed as an incarcerated inguinal hernia.

Ten-year health impact, economic impact and return on investment of the South African molecular diagnostics programme for HIV, tuberculosis and SARS-CoV-2.

Introduction: To ensure there is adequate investment into diagnostics, an understanding of the magnitude of impact and return on investment is necessary. We, therefore, sought to understand the health and economic impacts of the molecular diagnostic programme in South Africa, to deepen the understanding of the broad value of diagnostics and guide future healthcare investments.

Methods: We calculated the 10-year (where data were available) total cost and disability-adjusted life-years (DALYs) averted associated with molecular testing for tuberculosis diagnosis (2013-2022), HIV viral load monitoring (2013-2022), early infant diagnosis of HIV infection (2013-2022) and SARS-CoV-2 testing (2020-2022), based on the actual number of molecular tests conducted in South Africa for the respective time periods.

Economic impact of extending reflexed cryptococcal antigenaemia CD4 threshold in South Africa.

Background: Reflexed cryptococcal antigenaemia (CrAg) testing has been offered since 2016 in South Africa, on remnant CD4 specimens, for people with a count < 100 cells/μL. Local guidelines recommended extending testing to 200 cells/μL.

Objectives: This study assessed the cost per result and annual equivalent costs (AEC) for CD4 counts < 100 cells/μL and 100 to 200 cells/μL, as well as determining the cost to find one CrAg-positive case.

Xpert MTB/XDR implementation in South Africa: cost outcomes of centralised vs. decentralised approaches.

Introduction: In South Africa, Xpert MTB/RIF Ultra (Ultra) is the recommended diagnostic assay for TB with line-probe assays for first- (LPAfl) and second-line drugs (LPAsl) providing additional drug susceptibility testing (DST) for samples that were rifampicin-resistant (RR-TB). To guide implementation of the recently launched Xpert MTB/XDR (MTB/XDR) assay, a cost-outcomes analysis was conducted comparing total costs for genotypic DST (gDST) for persons diagnosed with RR-TB considering three strategies: replacing LPAfl/LPAsl (centralised level) with MTB/XDR vs. Ultra reflex testing (decentralised level).

Assessing very advanced HIV disease in adolescent girls and young women.

Background: South Africa has the largest HIV epidemic globally, with ~7.5 million people living with HIV in 2021. Adolescent girls (AG) and young women (YW), aged 15-19 years and 20-24 years, are twice as likely to be living with HIV as their male counterparts.

More Than a Decade of GeneXpert/Rifampicin (Ultra) Testing in South Africa: Laboratory Insights from Twenty-Three Million Tests.

This study seeks to describe the rollout and current state of South Africa's GeneXpert molecular diagnostic program for tuberculosis (TB). Xpert MTB/RIF was introduced in 2011 with a subsequent expansion to include extra-pulmonary and paediatric testing, followed by Xpert MTB/RIF Ultra in 2017. Through a centralised laboratory information system and the use of a standardised platform for more than a decade, over 23 million tests were analysed, describing the numbers tested, complex detection, rifampin resistance, and the unsuccessful test rates.

Abdominal ectopic pregnancy.

An ectopic pregnancy (EP) accounts for 1-2% of all pregnancies, of which 90% implant in the fallopian tube. An abdominal ectopic pregnancy (AEP) is defined as an ectopic pregnancy occurring when the gestational sac is implanted in the peritoneal cavity outside the uterine cavity or the fallopian tube. Implantation sites may include the omentum, peritoneum of the pelvic and abdominal cavity, the uterine surface and abdominal organs such as the spleen, intestine, liver and blood vessels.

Using laboratory data to assess the impact of coronavirus (COVID-19) on reflex cryptococcal antigenaemia (CrAg) testing in South Africa.

Background: Coronavirus disease (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first reported in Wuhan, China. Due to the rapid spread globally, it was declared a pandemic in March 2020. Social distancing and lockdown measures were introduced to limit transmission.

National Impact of SARS-CoV-2 Infection on HIV Virological Suppression in South Africa.

Background: Coronavirus disease (COVID-19) severely disrupted routine health care globally. This study assessed the impact of successive COVID-19 waves on HIV viral load (VL) suppression in South Africa, using the national public sector laboratory database. Guidelines recommend VL monitoring at 6 months after treatment initiation, annually once if suppressed, or more frequently if unsuppressed.

HIV Viral Load Testing in the South African Public Health Setting in the Context of Evolving ART Guidelines and Advances in Technology, 2013-2022.

HIV viral load (VL) testing plays a key role in the clinical management of HIV as a marker of adherence and antiretroviral efficacy. To date, national and international antiretroviral treatment recommendations have evolved to endorse routine VL testing. South Africa (SA) has recommended routine VL testing since 2004.

Diabetic control and compliance using glycated haemoglobin (HbA1C) testing guidelines in public healthcare facilities of Gauteng province, South Africa.

Objective: This study aimed at evaluating diabetic control and compliance with testing guidelines, across healthcare facilities of Gauteng Province, South Africa, as well as factors associated with time to achieve control. South Africa's estimated total unmet need for care for patients with type 2 diabetes mellitus is 80%.

Research Design, Methods And Findings: The data of 511 781 patients were longitudinally evaluated.

Appropriateness of laboratory expenditure for primary health care facilities across South Africa.

Background: Primary health care (PHC) services have been prioritised from a cost-containment perspective. To manage expenditure, facility managers use the Laboratory Handbook that indicates the Essential Laboratory List (ELL) tests.

Aim: The aim of this study was to analyse PHC laboratory expenditure to assess the impact of the ELL in South Africa.

The Importance of Imaging in the Detection of Intraoral Foreign Body.

Intraoral foreign bodies (IOFBs) can be seen incidentally on computed tomography (CT) imaging and may mimic pathology. It is therefore important to identify the imaging features of a comestible intraoral foreign body and differentiate them from true pathology to avoid unwarranted patient distress and further imaging or procedures that are unnecessary and costly. This case describes a 31-year-old male who presented to the emergency room following a fall from an eight-foot height, with loss of consciousness for five minutes and right periorbital edema.

Superior Mesenteric Artery Thrombosis in a Patient With Median Arcuate Ligament Syndrome.

Median arcuate ligament syndrome (MALS) is a rare and controversial vascular compression syndrome. In this condition, the median arcuate ligament compresses the celiac artery, resulting in symptoms such as postprandial abdominal pain, vomiting, and weight loss. Its diagnosis is based on clinical findings in conjunction with supporting radiological features such as elevated flow velocities on Doppler ultrasound and focal indentation of the proximal celiac artery with the typical 'hooked' or 'J'-shaped appearance on conventional angiography or computed tomography angiography (CTA).

Assessing the cost and utilization of SMS printers by primary health care facilities: lessons learned from South Africa.

Background: Historically, paper-based laboratory reports were delivered by couriers to health facilities resulting in post-analytical delays. As a result, short message service (SMS) printers were deployed to fill this gap, with the global data service platform (GDSP) being primarily used to facilitate deployment. In addition, these printers generate binary and quantitative information that can be used to assess utilization.

Modelling CD4 reagent usage across a national hierarchal network of laboratories in South Africa.

Background: The National Health Laboratory Service is mandated to deliver cost-effective and efficient diagnostic services across South Africa. Their mandate is achieved by a network of laboratories ranging from centralised national laboratories to distant rural facilities.

Objective: This study aimed to establish a model of CD4 reagent utilisation as an independent measure of laboratory efficiency.

Optimising courier specimen collection time improves patient access to HIV viral load testing in South Africa.

Background: South Africa uses a courier network for transporting specimens to public laboratories. After the daily collection of specimens from the facility by the courier, patients not yet attended to are unlikely to receive same-day blood draws, potentially inhibiting access to viral load (VL) testing for HIV patients.

Objective: We aimed to design an optimised courier network and assess whether this improves VL testing access.

Cost of running a full-service receiving office at a centralised testing laboratory in South Africa.

Background: The National Health Laboratory Service operates a platform of 226 laboratories across South Africa, ranging from highly sophisticated central academic hospitals to distant rural hospitals. The core function of the National Health Laboratory Service is to provide cost-effective and efficient health laboratory services in the public healthcare sector.

Objective: This study aimed to assess the comprehensive cost of running a full-service receiving office (RO) at the Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) laboratory.

Newly implemented community CD4 service in Tshwaragano, Northern Cape province, South Africa, positively impacts result turn-around time.

Background: The Northern Cape is South Africa's largest province with an HIV prevalence of 7.1% versus a 13.5% national prevalence.

Assessing CD4 rejections across a national laboratory service for 2018 in South Africa: highlighting the importance of adherence to national handbook guidelines.

The National Health Laboratory Service as the preferred pathology service provider for the public health sector in South Africa, developed a national laboratory handbook to improve the clinic-laboratory-interface. A separate primary health care laboratory handbook was developed as part of the ideal clinic initiative by the National Department of Health. This study aimed to assess adherence to these guidelines using CD4 rejections the indicator.

A publicly available dataset of out-of-field dose profiles of a 6 MV linear accelerator.

An increase in radiotherapy-induced secondary malignancies has led to recent developments in analytical modelling of out-of-field dose. These models must be validated against measurements, but currently available datasets are outdated or limited in scope. This study aimed to address these shortcomings by producing a large dataset of out-of-field dose profiles measured with modern equipment.

Dental student's perceptions and experience treating adults with developmental disabilities.

Objectives: The objective of this study was to investigate the perceptions and experiences of dental students with regards to treating adults with developmental disabilities (AWDDs).

Methods: Semi-structured interviews were conducted with three groups of participants: experts who extensively work with AWDDs (n = 3), students who had no clinical training to treat AWDDs (n = 3), and students who had completed their clinical training to treat AWDDs (n = 8). One-on-one interviews were conducted in-person or via video call with each participant.