Bacteremia from streptococcus constellatus revealing a gastrointestinal stromal tumor.

Background: Pyogenic Liver Abscesses (PLA) are the most common type of visceral abscess. They generally develop in a context of biliary disease or hematogenous seeding, but a complete diagnostic work-up is always required in order not to miss other important causes, including above all malignancies of the gastro-intestinal tract.

Case Presentation: Herein, we report a particular case of a 80 years-old immunocompetent woman hospitalized for sepsis.

Pancytopenia Secondary to Vitamin B12 Deficiency in Older Subjects.

Background: Vitamin B12 (cobalamin CBL) is a water-soluble vitamin required to form hematopoietic cells (red blood cells, white blood cells, and platelets). It is involved in the process of synthesizing DNA and myelin sheath. Deficiencies of vitamin B12 and/or folate can cause megaloblastic anemia (macrocytic anemia with other features due to impaired cell division).