Widespread rash in toddler

This patient was given a diagnosis of Gianotti Crosti syndrome (GCS; also called infantile acrodermatitis of childhood), which is a self-resolving (often dramatic) dermatosis triggered by a viral infection or immunization. Patients with this syndrome develop papules, vesicles, and plaques on their face, hands, feet, and extremities a week (or more) after having a viral illness or receiving an immunization. In patients with darker skin types, lesions may appear purple to brown rather than bright red to red/orange. The syndrome typically occurs in children between the ages of 1 to 4 years, but almost all patients are under the age of 15.¹ Scratching and sleep disturbance are common. The condition typically resolves on its own after 3 or 4 weeks.

Globally, the hepatitis B virus (HBV) is the most common cause of GCS.¹ Other reported triggering viruses include hepatitis A and C, cytomegalovirus, Epstein-Barr virus, enteroviruses, HIV, parainfluenza viruses, parvoviruses, rubella, and COVID-19.²

Since the cause of this patient’s case of GCS was likely linked to a viral infection that produced the loose stools in a population with low-HBV risk, no further serologic testing was performed. Serologic testing may have been necessary if other infections, disease risks, or symptoms were identified. To relieve itching, topical triamcinolone 0.1% cream was prescribed for use once to twice daily on the extremities and hydrocortisone 1% cream was prescribed once to twice daily for use on the child’s face. At the 6-week follow-up visit, the lesions had resolved; light pink discoloration remained but was expected to further fade. In patients with darker skin, post-inflammatory hyperpigmentation may take several months to resolve.

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Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

This patient was given a diagnosis of Gianotti Crosti syndrome (GCS; also called infantile acrodermatitis of childhood), which is a self-resolving (often dramatic) dermatosis triggered by a viral infection or immunization. Patients with this syndrome develop papules, vesicles, and plaques on their face, hands, feet, and extremities a week (or more) after having a viral illness or receiving an immunization. In patients with darker skin types, lesions may appear purple to brown rather than bright red to red/orange. The syndrome typically occurs in children between the ages of 1 to 4 years, but almost all patients are under the age of 15.¹ Scratching and sleep disturbance are common. The condition typically resolves on its own after 3 or 4 weeks.

Globally, the hepatitis B virus (HBV) is the most common cause of GCS.¹ Other reported triggering viruses include hepatitis A and C, cytomegalovirus, Epstein-Barr virus, enteroviruses, HIV, parainfluenza viruses, parvoviruses, rubella, and COVID-19.²

Since the cause of this patient’s case of GCS was likely linked to a viral infection that produced the loose stools in a population with low-HBV risk, no further serologic testing was performed. Serologic testing may have been necessary if other infections, disease risks, or symptoms were identified. To relieve itching, topical triamcinolone 0.1% cream was prescribed for use once to twice daily on the extremities and hydrocortisone 1% cream was prescribed once to twice daily for use on the child’s face. At the 6-week follow-up visit, the lesions had resolved; light pink discoloration remained but was expected to further fade. In patients with darker skin, post-inflammatory hyperpigmentation may take several months to resolve.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).

This patient was given a diagnosis of Gianotti Crosti syndrome (GCS; also called infantile acrodermatitis of childhood), which is a self-resolving (often dramatic) dermatosis triggered by a viral infection or immunization. Patients with this syndrome develop papules, vesicles, and plaques on their face, hands, feet, and extremities a week (or more) after having a viral illness or receiving an immunization. In patients with darker skin types, lesions may appear purple to brown rather than bright red to red/orange. The syndrome typically occurs in children between the ages of 1 to 4 years, but almost all patients are under the age of 15.¹ Scratching and sleep disturbance are common. The condition typically resolves on its own after 3 or 4 weeks.

Globally, the hepatitis B virus (HBV) is the most common cause of GCS.¹ Other reported triggering viruses include hepatitis A and C, cytomegalovirus, Epstein-Barr virus, enteroviruses, HIV, parainfluenza viruses, parvoviruses, rubella, and COVID-19.²

Since the cause of this patient’s case of GCS was likely linked to a viral infection that produced the loose stools in a population with low-HBV risk, no further serologic testing was performed. Serologic testing may have been necessary if other infections, disease risks, or symptoms were identified. To relieve itching, topical triamcinolone 0.1% cream was prescribed for use once to twice daily on the extremities and hydrocortisone 1% cream was prescribed once to twice daily for use on the child’s face. At the 6-week follow-up visit, the lesions had resolved; light pink discoloration remained but was expected to further fade. In patients with darker skin, post-inflammatory hyperpigmentation may take several months to resolve.

‌

Text courtesy of Jonathan Karnes, MD, medical director, MDFMR Dermatology Services, Augusta, ME. Photos courtesy of Jonathan Karnes, MD (copyright retained).