(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Myoclonus is a brief contraction of a muscle or group of muscles. Pathology…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Tremors are involuntary rhythmic oscillatory movements of one or more muscle groups. They…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Disorders of platelet function include a disruption in platelet function that is independent…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Cutaneous reactions are a common adverse effect of medications. Most are mild but…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Eosinophilia refers to an absolute eosinophil count >500 cells/μL. A value >5000 cells/μL…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Anemia is defined as a reduction in red blood counts, hemoglobin , and…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   A platelet count of <150,000 cells/μL is considered thrombocytopenia. However, 2.5% of the…

(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA   Sialorrhea refers to excessive oral secretions causing drooling. Pathology It is most commonly…