Internal medicine
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An 84-year-old woman with IgG4-related disease presented with jaundice and liver dysfunction after coronavirus disease 2019 (COVID-19) vaccination. Serum IgG4 levels were elevated. Diagnostic imaging showed no stenotic lesions in the bile ducts. ⋯ Infiltration of IgG4-positive plasma cells, which accounted for approximately 74% of total plasma cells, was found in the portal area, but there was no evidence of periportal hepatitis, and inflammatory cell infiltration into the lobular space was minimal. IgG4-related hepatopathy was diagnosed. The patient achieved spontaneous remission with no treatment and only follow-up and remains under observation at the time of writing.
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Heyde's syndrome is a disease in which patients with aortic stenosis (AS) bleed from angiodysplasia. An 80-year-old woman with a history of severe AS was referred to our hospital with melena and anemia. ⋯ The patient underwent transcatheter aortic valve implantation (TAVI) one year after the diagnosis, and the VWF index recovered. This is a valuable case in which the pathological analysis of angiodysplasia associated with Heyde's syndrome was possible.
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Peripartum cardiomyopathy (PPCM) is a left ventricular systolic dysfunction associated with heart failure (HF) in late-term pregnancy or peripartum. A 29-year-old pregnant woman with no history of cardiac disease noted lower extremity edema around 34 weeks' gestation with significant weight gain. She delivered twins via caesarean section, and the edema regressed postpartum. ⋯ HF treatment along with cabergoline was initiated. With low prolactin blood levels, her symptoms and cardiac function improved over time. This case demonstrated the usefulness of anti-prolactin therapy with cabergoline in PPCM.