Paraneoplastic renal tubular acidosis secondary to ovarian teratoma

Background: Renal tubular acidosis (RTA) is a relatively uncommon disorder, often linked to autoimmune conditions or adverse effects of certain medications. It is rare for clinicians to encounter this disorder during their medical practice. There are 3 distinct types: type 1(distal), type 2 (proximal), and type 4 (hypoaldosteronism). Etiology of a specific case of RTA can be difficult to pin, which is what prompted us to get further imaging. Our case report is going to reveal a rare relationship between RTA and an ovarian teratoma. Ovarian teratomas are a type of germ cell tumor that are composed of somatic tissue, typically ectoderm, endoderm, and mesoderm. These tissues are foreign to the anatomic site they are found in. More than 95% of ovarian teratomas are mature cystic teratomas which are generally asymptomatic. If symptoms do occur, they are typically associated with the size of the teratoma itself.