Intestinal Pseudo-Obstruction as the Initial Clinical Presentation in Systemic Lupus Erythematosus: A Rare and Severe Disorder.

Intestinal pseudo-obstruction (IPO) is a rarely recognized complication of systemic lupus erythematosus (SLE). We present a 36-year-old African American female, with only known past medical history of anemia, admitted for frequent vomiting, abdominal distension, abdominal pain, diarrhea, and fever that had been ongoing for 5 days. Laboratory results revealed leukopenia and thrombocytopenia. Imaging revealed dilated small bowel loops, abdominal ascites, as well as mild bilateral hydroureteronephrosis without obstructing calculus. Serologic testing confirmed a diagnosis of SLE. The patient was placed on immunosuppressive therapy and responded well. IPO has previously been described as a rare finding in patients with SLE, with bilateral hydroureteronephrosis and lupus interstitial cystitis having been noted as common concomitant factors. One must have a high level of suspicion to recognize it as being one of the initial clinical presentations. Early recognition and appropriate management preclude unnecessary invasive procedures that do not take into account the pathophysiology of the condition and allow for appropriate management and return of peristaltic function.