There is no widely recognized skin disease called "CBDC". However, the provided reference describes a condition abbreviated as CBDC: Chronic Bullous Dermatosis of Childhood.
Chronic Bullous Dermatosis of Childhood (CBDC) Explained
Chronic Bullous Dermatosis of Childhood (CBDC) is a rare skin disorder affecting children. It's classified as a subepidermal immunobullous disorder, meaning it causes blisters (bullae) beneath the epidermis (outer skin layer) due to problems with the immune system.
Key Characteristics:
- Blisters (bullae): CBDC is characterized by the development of blisters, typically on the skin.
- Linear IgA Deposition: A distinctive feature is the presence of linear IgA (a type of antibody) deposits at the basement membrane zone (the area between the epidermis and dermis). This is detected through a specific skin test called direct immunofluorescent examination.
- Childhood Onset: The condition typically appears during childhood.
Diagnosis:
Diagnosis relies on clinical presentation (appearance of blisters) and the results of the direct immunofluorescent examination showing the characteristic linear IgA deposits.
In Summary:
CBDC is not a common term used to describe a skin condition, but rather an abbreviation for Chronic Bullous Dermatosis of Childhood, a rare, childhood-onset skin disorder characterized by subepidermal blisters and linear IgA deposition at the basement membrane zone.