title: Legionella micdadei (Pittsburgh pneumonia agent). Two infections with unusual clinical features.
abstract: We describe herein the clinical features, diagnosis, and successful treatment of two patients with Legionella micdadei pneumonia, the Pittsburgh pneumonia agent. The rapid pulmonary cavitation and relapse of symptoms after a course of therapy in a renal transplant recipient, and the prolonged illness with hemorrhagic pleural fluid, splenomegaly, and multiple-organ dysfunction in a nonimmunocompromised host, illustrate the clinical spectrum of infections with this organism.
mesh_terms: D000328:Adult; D000368:Aged; D001424:Bacterial Infections; D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D016030:Kidney Transplantation; D007875:Legionella / Q000145:classification / Q000302:isolation & purification; D008297:Male; D009102:Multiple Organ Failure / Q000503:physiopathology; D010996:Pleural Effusion / Q000209:etiology; D011014:Pneumonia / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular; D013902:Radiography, Thoracic