Aminotransferase elevation is a frequent cause of consultation for the Hepatologist, in both the outpatient and inpatient settings, but identifying the origin of these biochemical alterations may be challenging. Here we report a case where acute elevation of aminotransferases, associated with abdominal symptoms, was the cause of two hospitalizations in a short period of time. As the patient su...

Autoimmune polyendocrine syndromes are a heterogeneousgroup of rare diseases characterized by autoimmune activityagainst more than one endocrine organ, although non-endocrineorgans can also be affected. We report the association of APS Iwith erythema annulare centrifugum in an 18-years-old male whopresented with multiple figurate erythema spreading on his trunkand extremities along with a histo...

BACKGROUND Arginase is an enzyme of the urea cycle, and one of the two isoenzymes is the liver-type enzyme. We examined serum autoantibodies to this liver-type enzyme in patients with hepatitis. METHODS Antibodies to recombinant human liver-type arginase were measured by ELISA in 95 patients and 55 healthy controls. RESULTS The mean absorbance values in the ELISA assays of patients with def...