Targetoid Skin Lesions in a Child: Acute Hemorrhagic Oedema of Infancy and Its Differential Diagnosis

Common pathway coagulopathy and hemorrhagic edema of infancy

When screening tests of haemostasis are abnormal, it is important to identify at which point in the coagulation cascade dysfunction may be occurring. This may assist to identify a specific deficiency/dysfunction, the type of bleeding to be anticipated, and replacement therapy if required. Unmasking of an inherited coagulopathy or the development of an acquired coagulopathy may occur in the setting of a second (febrile) illness. Differentiating between inherited and acquired coagulopathies will rely on clinicians taking a thorough personal and family bleeding history, and correlating these findings with the haemostasis screening results.

Acute hemorrhagic edema of infancy (AHEI): Alarming cutaneous presentation of a benign and self‐limited disease

Acute hemorrhagic edema of infancy (AHEI) is a cutaneous leukocytoclastic vasculitis. We report on an 11‐month‐old boy, presenting the classical feature of AHEI with alarming cutaneous presentation, but good clinical condition. Early recognition is crucial to avoid unnecessary medical investigations or therapies, as well as to identify potentially severe complications.

Acute Hemorrhagic Infancy of Edema: A Purpuric Rash in 6-Month-Old Infant

Acute hemorrhagic edema of infancy (AHEI) is a cutaneous leukocytoclastic vasculitis presenting with purpura, ecchymosis, fever, and edema. Pediatricians must effectively differentiate AHEI from other diseases that have similar presentations but are more severe in order to treat appropriately without overutilizing expensive, unnecessary diagnostic tests. In this article, we describe a case of a 6-month-old previously well male who presented to our institution with a worsening rash and fever. In this case, the patient’s age and benign clinical manifestations without systemic involvement favored the diagnosis of AHEI over more serious conditions. This case is a valuable example of the clinical findings of AHEI and the effectiveness of conservative therapy once a diagnosis is made for pediatricians, especially emergency and urgent care physicians.