Case Presentation: A female patient was referred to hematology/oncology with severe neutropenia and leukopenia. Bone marrow biopsy revealed ringed sideroblasts with multilineage dysplasia consistent with MDS. Further diagnostic workups did not reveal common genetic mutations, and she was scheduled to start treatment with either erythropoietin or luspatercept. Copper deficiency was later found in follow-up, which [...]

Case Presentation: A 43-year-old man with a history of chronic hepatitis B on antiviral therapy was admitted to a hospital medicine service with low back pain, weight loss, fevers, and fatigue over 2-3 months. Exam showed cervical lymphadenopathy (LAD), and initial labs were notable for a hemoglobin of 9.7g/dL, platelet count of 40×109/L, and rare [...]