An Unusual Presentation of Primary B-cell Lymphoma of the Small Bowel in an Immunosuppressant-Naive Patient With Newly Diagnosed Crohn's Disease.

Inflammatory bowel disease (IBD) consists of two primary conditions: ulcerative colitis (UC) and Crohn's disease (CD). UC primarily impacts the colon, leading to inflammation of the mucosal layer. Conversely, CD involves transmural inflammation and can affect any segment of the gastrointestinal tract, ranging from the oral cavity to the perianal region. Patients with CD can have symptoms for many years prior to diagnosis, or they may present acutely. We present the case of a 31-year-old male with a recent CD diagnosis and otherwise, no past medical history presenting with a week-long history of bilateral lower extremity swelling that started in the thighs and progressed downward, accompanied by a heavy sensation in the legs and intermittent numbness. Less than 24 hours into his hospital course, the patient experienced progressive bilateral numbness, saddle anesthesia, and urinary incontinence. Subsequently, the patient was taken for STAT MRI and emergent neurosurgery to alleviate the spinal cord compression and remove/biopsy a mass at the T6-T7 level that was later defined as a B-cell lymphoma. Our objectives are to describe the etiology of IBD complicated by lymphoma, to analyze the association between IBD and lymphoma, and to investigate the role that immunosuppressants play in the development of lymphoma from IBD, which we achieve through retrospective case analysis and associated literature review on symptom constellation. There is good evidence that malignant lymphoma of the bowel is a rare but significant complication of IBD in immunosuppressant-naive patients, apparently being more common in chronic UC. We suggest increased surveillance for this disease in immunosuppressant-naive patients, as the prognosis of lymphoma depends on the time of diagnosis.

Bipolar Disorder and Cardiovascular Risk in Rural versus Urban Populations in Colombia: A Comparative Clinical and Epidemiological Evaluation.

Background: Various multifactorial elements may contribute toward the urban and rural disparities in cardiovascular disease (CVD) risk, particularly among patients with psychiatric diseases. Objective: To investigate whether rural patients diagnosed and treated for Bipolar Disorder (BD) have different risk profiles and outcomes of CVD compared to urban (BD) patients. Methods: We conducted a case-control study that included 125 BD patients (cases) from rural Filadelfia, Colombia and 250 BD patients (controls) treated in Bogotá, Colombia. Cases and controls were 2:1, matched by age and sex. We applied the Framingham Heart Study (FHS) risk calculator to assess risk. Differences by rural/urban status (i.e., case-control status) were assessed by chi-square, paired t-tests, and logistic regression. Findings: Rural BD patients were found to have lower education (p = 1.0 × 10-4), alcohol consumption (p = 3.0 × 10-4), smoking (p = 0.015), psychiatric (p = 1.0 × 10-4) and CV family history (p = 0.0042) compared to urban BD patients. Rural BD patients were 81% more likely to have a more favorable CVD risk profile (OR: 0.19, 95% CI [0.06-0.62]) than urban BD patients, despite rural BD patients having increased CVD morbidity (p = 1.0 × 10-2). Conclusion: Based on increase in morbidity but lower predictive risk in the rural population, our study suggests that the FHS-CVD calculator may not be optimal to assess CVD risk in this population.