We describe a case of a 46-year-old woman diagnosed with localized PTC 20 years ago, having already undergone several treatments with iodine-131 and then treatment with lenvatinib for metastatic disease, to which she developed intolerance. In 2020, in addition to pleural, thoracic, and abdominal lymph node metastasis, progression with symptomatic vertebral bone metastasis was detected, which led to the equation of new therapeutic options. In this context, a genetic/molecular test was carried out, which identified the BRAF V600E mutation and enabled the start of treatment with dabrafenib/trametinib since June 2020. This treatment allowed functional gain, symptomatic relief, and stabilization of the disease. It demonstrates how, in rare tumors, the personalized medicine approach can bring new treatment possibilities.
Acute interstitial nephritis (AIN) corresponds to a decline in kidney function due to an injury induced by drugs (in the majority of cases), infections, and autoimmune disorders. It is characterized by the presence of an interstitial inflammatory infiltrate in the kidney. Here, we describe a case of a man with a previous medical history relevant to ulcerative colitis (UC) who was admitted due to acute kidney injury (AKI) in the setting of AIN secondary to mesalazine.
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