Related Experiment Video
Updated: Aug 5, 2026

Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages
Published on: May 30, 2019
[Periodic fever]
I Mongil Ruiz1, V Canduela Martínez
1Hospital de Laredo. Cantabria. España. imongil@hlrd.insalud.es
Abstract:
Periodic fever can be defined as recurrent episodes of fever lasting from a few days to several weeks separated by symptom-free intervals of variable duration, recurring throughout several months. Although these clinical pictures are unusual in clinical practice, in some instances the differential diagnosis with recurrent infections, malignancies and connective tissue diseases is difficult. The aim of this review is to group together these different clinical pictures, which are dispersed in the literature, to obtain an overall and detailed perspective.We classified these processes in two categories: hereditary (familial Mediterranean fever, hyper-IgD syndrome, tumor necrosis factor-receptor-associated periodic syndrome, Muckle-Wells syndrome and familial cold urticaria) and non-hereditary (periodic fever, aphthous stomatitis, pharyngitis, and adenopathy syndrome [PFAPA syndrome], cyclic neutropenia, chronic infantile neurological cutaneous and articular syndrome [CINCA syndrome], Castleman's disease, early onset sarcoidosis and Blau syndrome). Although diagnosis is essentially clinical, in recent years many advances have been made in the knowledge of the molecular and genetic bases of hereditary diseases, which may be of considerable help in establishing the diagnosis and improving treatment.
Insights
Periodic fever syndromes involve recurrent fevers, challenging diagnosis against infections. This review classifies hereditary and non-hereditary types, aiding understanding and treatment.
Area of Science:
- Medicine
- Genetics
- Immunology
Background:
- Periodic fever involves recurrent episodes of fever, often difficult to differentiate from infections, malignancies, or connective tissue diseases.
- These conditions are uncommon but present diagnostic challenges in clinical practice.
- A comprehensive understanding requires consolidating dispersed literature on these varied presentations.
Purpose of the Study:
- To systematically review and categorize diverse periodic fever syndromes.
- To provide a consolidated perspective on both hereditary and non-hereditary forms.
- To highlight diagnostic challenges and recent advancements in understanding genetic bases.
Main Methods:
- Literature review and classification of periodic fever syndromes.
- Categorization into hereditary and non-hereditary groups based on existing studies.
- Synthesis of clinical and genetic information from dispersed literature.
Main Results:
- Periodic fever syndromes were classified into two main categories: hereditary and non-hereditary.
- Hereditary examples include familial Mediterranean fever, hyper-IgD syndrome, and others.
- Non-hereditary examples include PFAPA syndrome, cyclic neutropenia, and others.
Conclusions:
- Accurate diagnosis of periodic fever syndromes is crucial and can be challenging.
- Advances in molecular and genetic knowledge of hereditary forms aid diagnosis and treatment.
- This review consolidates information to offer a detailed perspective on these conditions.
Related Concept Videos
The Periodic Table and Organismal Elements
Periodic Table Provides Information...
Increased Body Temperature
Methods of reducing fever
Pharmacological Methods of Reducing Fever:
Types of Fever
Here are the different types of fever:
Patterns of Fever
Rocky Mountain Spotted Fever

