Primers in 2023

This Primer summarizes the epidemiology, pathophysiology, diagnosis and treatment of primary central nervous system lymphoma. This Primer also reviews future research avenues and the effect that this disorder has on the quality of life of patients.

Acute graft-versus-host disease can occur after allogeneic haematopoietic cell transplantation. This Primer summarizes the epidemiology, pathophysiology, diagnosis, prevention and treatment of this disorder. This Primer also reviews future research avenues and the effect this disorder has on patients’ quality of life.

Worldwide, the prevalence of obesity in children and adolescents remains high or is increasing. This Primer by Lister and colleagues discusses the epidemiology, mechanisms, diagnosis, prevention and management of obesity in this age group. The authors also highlight patient quality of life and areas for further research.

Young-onset colorectal cancer occurs in individuals younger than 50 years and is increasing in incidence worldwide. This Primer provides an overview of the epidemiology, diagnosis, screening, prevention, pathophysiology and management of this cancer and its impact on patient quality of life.

Helicobacter pylori infection causes chronic gastritis and can lead to severe gastroduodenal pathologies, including peptic ulcer and gastric cancer. This Primer summarizes the epidemiology, pathophysiology, diagnosis and management of this infection, and discusses patient quality of life and open research questions.

Chikungunya fever is an acute febrile illness caused by chikungunya virus, a mosquito-borne alphavirus. This Primer by Bartholomeeusen and colleagues summarizes the epidemiology, mechanisms, diagnosis and treatment of chikungunya fever, and discusses patient quality of life and open research questions for this condition.

This Primer by Cordonnier and colleagues describes the epidemiology, aetiology, pathophysiology, diagnosis and treatment of intracerebral haemorrhage.

Monogenic diabetes encompasses forms of diabetes that result from a single pathogenic genetic alteration and usually have an early onset. This Primer gives an overview of the epidemiology, pathophysiology, diagnosis and treatment of these conditions, as well as patient quality of life and open research questions.

Fetal alcohol spectrum disorders (FASD) are characterized by neurodevelopmental impairment with or without facial dysmorphology, congenital anomalies and poor growth. This Primer discusses the epidemiology, pathophysiology, diagnosis and treatment of FASD.

Pre-eclampsia is a life-threatening disease of pregnancy and a leading cause of maternal and neonatal morbidity and mortality. This Primer by Dimitriadis and colleagues summarizes the epidemiology, mechanisms, diagnosis and treatment of pre-eclampsia, and discusses patient quality of life and open research questions for this condition.

Medication overuse headache is a secondary headache disorder that occurs in those with a primary headache disorder (commonly tension-type headache or migraine). This Primer reviews the epidemiology, pathophysiology, diagnosis and treatment of medication overuse headache, and discusses how this disorder affects the quality of life of patients.

The ichthyoses are a group of dermatological disorders characterized by generalized scaly, erythematous skin, accompanied by epidermal barrier function disruptions. This Primer by Gutiérrez-Cerrajero and colleagues summarizes the epidemiology, mechanisms, diagnosis and treatment of ichthyosis, and discusses patient quality of life and open research questions for this condition.