15 March 2026
: Case report 
Delayed Recognition of Systemic Lupus Erythematosus Presenting With Visceral Muscle Dysmotility and Chronic Mucus-Bloody Enteropathy: A Case Report
Unusual clinical course, Challenging differential diagnosis
Settanan Plangsiri
ABCDEF 1, Manisara Jirapornsuwan BEF 1, Pat Ngamdachakij ACDEF 1, Dhanesh Pitidhammabhorn CD 2, Wannisa Wongpipathpong ADEFG 2*
DOI: 10.12659/AJCR.950774
Am J Case Rep 2026; 27:e950774
Table 1 Previous hospital laboratory values.
| Test | Result | Reference range | Unit |
|---|---|---|---|
| Free T3 | 1.04 | 1.58–3.91 | pg/mL |
| Free T4 | 0.93 | 0.70–1.48 | ng/dL |
| TSH | 3.16 | 0.4–4.0 | mIU/L |
| Stool RBC | 5–10 | None | /HPF |
| Stool WBC | 2–3 | None | /HPF |
| Stool toxin | Negative | Negative | – |
| Stool Acid-fast bacilli | Negative | Negative | – |
| Anti-HIV | Negative | Negative | – |
| Anti-HCV | Negative | Negative | – |
| HBs-Ag | Negative | Negative | – |
| Anti-HBs-Ag | Negative | Negative | – |
| Stool culture | No growth | No growth | – |
| Hemoculture | No growth | No growth | – |
| Anti-HBs-Ag – anti-hepatitis B serum antigen antibody; HBs-Ag – hepatitis B serum antigen; HCV – hepatitis C virus; HIV – human immunodeficiency virus; RBC – red blood cells; WBC – white blood cells. | |||