Related Experiment Video
Updated: Jul 20, 2026

A Method for Evaluating Insecticide Efficacy against Bed Bug, Cimex lectularius, Eggs and First Instars
Published on: March 15, 2017
Pediculid: Literature Review with Case Presentation
1Venereology and Andrology Department of Al-Azhar University, Cairo, Egypt.
Introduction:
ID reactions are infrequent disorders which are often misdiagnosed because they developed as acute dermatitis after days or weeks at skin locations distant from the initial inflammatory or infectious/infestations site. For now, several causes have been described to trigger such reactions which includes infection with dermatophytosis, Mycobacterium, viruses, bacteria, and parasites. Pediculid nowadays is forgotten entity in dermatology daily practice as well as major dermatology textbooks.
Case Presentation:
We present an illustrative case report of pediculid that is an ID reaction to Pediculosis capitis in 6 y.o. girl with acute generalized eczematous dermatitis successfully treated by elimination of pediculosis. Also, there is description of relapsing the condition with reinfestation.
Discussion/Conclusion:
During discussion and literature review, comprehensive description was made to the ID reaction as entity and its diagnostic criteria. In conclusion, we want to highlight that being aware of such possibility is important (especially in pediatric patients) to reach a correct diagnosis quickly and avoid unnecessary treatment and examinations.
Insights
Pediculid, an immune-mediated (ID) reaction to head lice (Pediculosis capitis), can cause widespread dermatitis. Prompt diagnosis and treatment of the underlying lice infestation are crucial for resolution and preventing recurrence.
Area of Science:
- Dermatology
- Pediatrics
- Infectious Diseases
Background:
- Immune-mediated (ID) reactions are uncommon skin disorders often misdiagnosed.
- Causes include infections like dermatophytosis, mycobacteria, viruses, bacteria, and parasites.
- Pediculid reactions, specifically to head lice (Pediculosis capitis), are frequently overlooked in clinical practice and literature.
Observation:
- A case report details a 6-year-old girl with acute generalized eczematous dermatitis.
- The dermatitis was an ID reaction secondary to Pediculosis capitis.
- The condition relapsed upon reinfestation, highlighting the link.
Findings:
- Successful treatment was achieved by eradicating the head lice infestation.
- The study emphasizes the diagnostic criteria for ID reactions.
- Awareness of pediculid as a cause of dermatitis is critical for accurate diagnosis.
Implications:
- Highlights the importance of considering pediculid reactions in pediatric dermatology.
- Prompt diagnosis can prevent unnecessary treatments and investigations.
- Increased awareness can improve patient outcomes for children with unexplained dermatitis.
More Related Videos
09:37Application of Lucilia sericata Larvae in Debridement of Pressure Wounds in Outpatient Settings
Published on: December 4, 2021
12:14Exploring Life History Choices: Using Temperature and Substrate Type as Interacting Factors for Blowfly Larval and Female Preferences
Published on: November 17, 2023