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Introduction: Drug induced liver injury (DILI), is a drug hepatotoxicity, with low incidence. However represents the most common cause of death secondary to acute liver failure. Assertive diagnosis and early treatment is important to avoid adverse results. Case report: A 73-year-old woman, with arterial hypertension and cholecystectomy, who suffered community acquired pneumonia with atypical presentation, was treated with clarithromycin 500 mg twice a day. She manifested jaundice, choluria, hipocholia and fatigue after the fourth day in treatment. Additional, physical examination: at palpation showed right and upper abdominal pain, and hepatomegaly. During the emergency room, laboratory tests showed significant alterations in liver function. Total leukocyte count 9020 with 8% eosinophils. Abdominal ultrasound was negative for biliary obstruction. During hospitalization, markers for autoimmune liver disease were non pathological, and viral serologies (Hepatitis A, B, C viruses, Epstein Barr, Cytomegalovirus and Human immunodeficiency virus) were negative. Biliary obstruction was negative according Magnetic resonance cholangiopancreatography. Liver biopsy showed "drug induced liver injury". Clarithromycin was suspended, and the patient achieved clinical improvement and she was discharge at the 7th day. Discussion: Clarithromycin is an antibiotic widely used for several bacterial infections, capable of induced hepatotoxicity. Diagnosis of DILI is difficult, that requires high index of clinical suspicion. Clinical manifestations, eosinophilia and diferential diagnoses are key for an assertive diagnosis. [ABSTRACT FROM AUTHOR]

Introduction: Approximately 5-10% of global cancer has a genetic base. Nowadays it is possible to identify those who have a genetic predisposition for some cancers, so they can be treated in short term. Objectives: Evaluate how useful is prophylactic surgery on hereditary Medullary Thyroid Cancer. Materials and methods: This investigation is a literature review of different research papers from electronic databases such as Scientific Electronic Library Online (SciELO), MedLine-PubMed and UpToDate. The research was made with clinical queries and MeSH terms, specially focused on hereditary Medullary Thyroid Cancer. Results: This research shows that prophylactic Thyroidectomy with cervical lymph node resection is the only effective and curative treatment for hereditary Medullary Thyroid Cancer. Conclusions: Prophylactic surgery has proof an important role decreasing the risk on Hereditary Thyroid cancer Syndrome and in RET carriers surgery is considered a must. [ABSTRACT FROM AUTHOR]