Role of Autoerythrocyte Sensitization Test in the Diagnosis of Recurrent Spontaneous Bruising

Introduction: Psychogenic purpura, also known as autoerythrocyte sensitization syndrome, is a rare condition which is characterized by spontaneous development of painful purpura, or ecchymoses. Skin lesions are usually preceded by stress and emotional trauma. It is usually a diagnosis of exclusion after ruling out history of trauma, drug intake and other bleeding disorders. Autoerythrocyte sensitization test (AEST) and a psychiatric evaluation helps in the diagnosis and treatment. Objective: To demonstrate the importance of AEST in diagnosing the patient of Gardner Diamond syndrome. Materials and Methods: Five suspected cases of autoerythrocyte sensitization syndrome underwent AEST after ruling out other causes of bleeding. Results: Four out of five patients were positive for AEST while one patient was negative. Psychiatric complaints were present in three patients. One patient was lost to follow up. Rest all patients responded well to vitamin C supplementation. Conclusion: Autoerythrocyte sensitization syndrome is a rare disorder and is a diagnosis of exclusion, so a thorough workup of the patient to rule out common causes of bruising is essential. A high index of suspicion on the clinician's part and a simple OPD-based AEST may help in the diagnosis. Psychiatric consultation is important to find out the stress factor and timely management.