Pseudocyst of the auricle is a rare, idiopathic disease clinically manifesting as a painless edema of the upper-lateral parts of the auricle. Due to the rarity of the disease, auricular pseudocyst is often misdiagnosed. The confirmation of a diagnosis of auricular pseudocyst is most commonly made on the basis of clinical manifestations. The etiology of the disease remains unknown, and this frequently hinders both proper diagnosis and prevention. We report a case of a 4-week neonate admitted to the Department of Pediatrics, Rheumatology and Environmental Diseases of the Chair of Pediatry, Jagiellonian University, Medical College in Krakow with bilateral pseudocyst with very early presentation that was less prominent after birth and well presented in the second week of life. The surgical treatment was successful. One month after treatment the infant was admitted again to the hospital with hypertension and edema of feet and hands. Treatment with amlodipine was implemented resulting in a normalization of blood pressure. The diagnosis of pseudohypoaldosteronism type I was confirmed.
Keywords: Auricular pseudocyst; Newborn.
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