Table 1.
Results of blood and serum sample tests
| Leucocyte | 4.9 | 109/L |
| Neutrophil fraction | 68.8 | % |
| Lymphocyte fraction | 16.7 | % |
| Eosinophil fraction | 5.1 | % |
| Carcinoembryonic antigen | 1.0 | ng/mL |
| Squamous cell carcinoma antigen | 0.9 | ng/mL |
| Cytokeratin-19 fragment | 1.2 | ng/mL |
| Sialyl-Lewis x antigen | 32.7 | U/mL |
| Pro-gastrin-releasing peptide | 29.3 | pg/mL |
| Neuron-specific enolase | 12.2 | ng/mL |
| Krebs von den Lungen-6 | 237 | U/mL |
| Interferon-γ release assay | Negative | |
| Anti-HIV antibody | (−) | |
| Rheumatoid factor | <5 | IU/mL |
| Prteinase 3-antineutrophil cytoplasmic antibody (ANCA) | <1.0 | |
| Myeloperoxidase-ANCA | <1.0 | |
| Anti-aminoacyl tRNA synthetase antibody | <5.0 | |
| Anti-Sjögren syndrome (SS)-A antibody | Negative | |
| Anti-SS-B antibody | Negative | |
| Anti-nuclear antibody | 40 | titer |
| Soluble Interleukin 2 receptor | 547 | U/mL |
| (1,3)-β-D-glucan | 34.6 | pg/mL |
| Aspergillus antigen | 0.3 | |
| Candida antigen | <0.02 | U/mL |
| Capsular glucuronoxylomannan polysaccharide | Positive |
Interferon-γ release assay was performed by using T-SPOT TB.
Serum (1,3)-β-D-glucan level was elevated above the normal upper limit (20 pg/mL).
Serum capsular glucuronoxylomannan polysaccharide as a cryptococcal antigen test was positive.