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Updated: Jul 18, 2026

Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis
Published on: December 15, 2011
An unsuspected sign of cutaneous allergy
Insights
About 30% of allergic children exhibit a hidden eczematous scalp and ear eruption, often linked to asthma or allergic rhinitis. This dermatitis is frequently overlooked due to hair coverage.
Area of Science:
- Pediatric Dermatology
- Allergology
Background:
- Eczematous eruptions can occur in children with allergic conditions.
- These scalp and ear conditions are often concealed by hair.
Purpose of the Study:
- To describe an eczematous eruption in allergic children.
- To identify associated allergic conditions.
Main Methods:
- Clinical observation of eczematous eruptions in children.
- Correlation with allergic conditions such as asthma and rhinitis.
Main Results:
- Approximately 30% of allergic children present with superior retroauricular and posterior pinna eczematous dermatitis.
- The eruption is primarily observed in children with bronchial asthma, perennial allergic rhinitis, or both.
- A history of atopic or seborrheic dermatitis is typically absent.
Conclusions:
- A distinct eczematous dermatitis affects the scalp and ears in a significant portion of allergic children.
- This eruption is strongly associated with asthma and allergic rhinitis.
- The concealed nature of the dermatitis may lead to underdiagnosis.
Abstract:
An eczematous eruption in the superior retroauricular areas of the scalp and often on the posterior aspects of the pinnas may be seen in about 30% of allergic children. The eruption is not generally noticed because the overhanging hair covers the affected areas. The dermatitis is seen mainly in those children afflicted with bronchial asthma, perennial allergic rhinitis, or both. A previous history of atopic or seborrheic dermatitis is, as a rule, not elicited.
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