Abstract
INTRODUCTION: Systemic lupus erythematosus is a chronic inflammatory disease affecting women, causing gastrointestinal issues like acute pancreatitis, esophagitis, and protein-losing enteropathy. Protein loss is uncommon, but a case study shows protein-losing enteropathy as a first sign. IMPORTANCE: Protein-losing enteropathy (PLE) is a rare gastrointestinal manifestation of SLE, often seen years before diagnosis. Suspecting hypoalbuminemia without protein loss is crucial, but diagnosis is challenging due to imaging and histological findings. CASE PRESENTATION: A 22-year-old woman with epigastric pain experienced sudden abdominal pain, vomiting, and arthralgia. An abdominal CT scan revealed moderate bilateral hydronephrosis, pelvic free fluid, a kidney stone, and a cyst. Laboratory tests showed normal hemoglobin levels, platelets, white blood cells, C-reactive protein, and ESR. Diagnosis of SLE was confirmed, and pulse steroid therapy and hydroxychloroquine were initiated. Severe ascites required pigtail insertion, and ceftazidime was added. The patient's condition improved, and she was discharged with regular follow-ups. CLINICAL DISCUSSION: A 22-year-old female was diagnosed with protein-losing enteropathy, a rare gastrointestinal manifestation of systemic lupus erythematosus (SLE). The disease is divided into mesenteric vasculitis, pseudo-obstruction, and protein loss enteropathy. The patient also had severe enteritis, abdominal pain, nausea, and diarrhea. The study found that the main complaint was abdominal pain with dysphagia, mainly due to active SLE inflammation. The patient responded well to treatment, with a 62.5% rapid improvement in pulse steroids and a cure for underlying causes through DMARDS or immunosuppressant drugs. CONCLUSIONS: The case presents a rare SLE diagnosis with gastrointestinal involvement, pleural effusion, and progressive swelling. Despite correct diagnosis and aggressive treatment, clinical improvement occurred, requiring high clinical suspicion.