Abscess/pathology; Anus Diseases/pathology; Escherichia coli Infections; Lung Diseases/pathology; Malacoplakia/pathology; Vaginal Diseases/pathology; Abscess/drug therapy; Abscess/etiology; Adult; Aged; Anus Diseases/drug therapy; Anus Diseases/etiology; Azathioprine/adverse effects; Cytodiagnosis; Cytoplasm/pathology; Female; Histiocytes/pathology; Humans; Immunosuppression Therapy/adverse effects; Lung Diseases/drug therapy; Lung Diseases/etiology; Malacoplakia/drug therapy; Malacoplakia/etiology; Male; Microscopy, Electron; Vaginal Diseases/drug therapy; Vaginal Diseases/etiology