Case Report
Fever of Unknown Origin as a Sole Presentation of Subacute Thyroiditis in an Elderly Patient: A Case Report with Literature Review
| | Laboratory Test | Levels(Reference Range) |
| | Hemoglobin | 12.3g/dl (13-17.5g/dl) |
| | White blood cells | 10.1k/cmm (4.5-11k/cmm) |
| | Neutrophils | 78%(40-78%) |
| | Lymphocytes | 12% (20-45%) |
| | Monocytes | 9% (0-14%) |
| | Eosinophils | 1% (0-8%) |
| | AST | 44 U/L (8-48 U/L) |
| | ALT | 38 U/L (7-55 U/L) |
| | Alkaline Phosphatase | 99 U/L (45 to 115 U/L) |
| | ESR | 86 mm/hr (0-20 mm/hr) |
| | CRP | 192.0 mg/L (<7.0 mg/L) |
| | HIV | Negative |
| | Monospot test | Negative |
| | IGRA | Negative |
| | Hepatitis B surface antigen | Negative |
| | Anti-hepatitis B core antibodies | Negative |
| | Anti-hepatitis B surface antibodies | Negative |
| | Anti-hepatitis C antibodies | Negative |
| | Anti-hepatitis A antibodies, Total | Negative |
| | Anti-hepatitis A antibodies, IgM | Negative |
| | Total thyroxine levels (Total T4) | 13.4 mcg/dL (5.0-11.0 mcg/dL) |
| | Free thyroxine levels (Free T4) | 2.55 ng/dL (0.70-1.60 ng/dL) |
| | Total triiodothyronine levels (Total T3) | 170 ng/dl (72-176 ng/dl) |
| | Free triiodothyronine levels (Free T3) | 6 pg/ml (2.3-4.2pg/dl) |
| | Thyroid stimulating hormone | 0.01 mIU/mL (0.30-5.0 mIU/mL) |
| | Thyroid stimulating immunoglobulins | <89(<140) |
| | Thyroglobulin (TG) antibodies | <1 IU/mL |
| | Thyroid peroxidase (TPO) antibody | <1 IU/mL |
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