Possible Association Between COVID-19 Infection and De Novo Antineutrophil Cytoplasmic Antibody-Associated Vasculitis.

The coronavirus disease 2019 (COVID-19) has caused many different complications including immune-related conditions. Hereby, we report a case of a possible association between COVID-19 infection and de novo anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis presenting with severe pulmonary-renal syndrome as a rare complication of COVID-19 infection. We had a 53-year-old male patient who was admitted for a severe COVID-19 pneumonia complicated by septic shock and acute respiratory distress syndrome.

Isolated Iliac Crest Tuberculosis: A Case Report.

Case: Following an insidious onset of symptoms, a 29-year-old man who had no risk factors for tuberculosis was diagnosed with tuberculosis of the iliac crest. The red flag in this case was the patient's progressive deterioration despite a variety of antibiotic regimens. Histopathologic demonstration of necrotic granulomatous inflammation and a positive culture led to the diagnosis.

Allogeneic Hematopoietic Cell Transplantation for Richter Syndrome: A Single-Center Experience.

Background: Recent studies have shown dismal outcomes when chronic lymphocytic leukemia progresses to Richter syndrome after patients receive ibrutinib, with a median overall survival ranging from 2.6 to 3.5 months.