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A 67-Year-Old Woman With Abdominal Pain, Paresthesia, and Rapidly Expanding Lung Nodule. CASE PRESENTATION: A 67-year-old woman with a medical history significant for hypertension, hyperlipidemia, type 2 diabetes mellitus, OSA, and schizophrenia was admitted multiple times the previous 3 months for generalized abdominal pain. Her most recent admission was unique for new onset bilateral upper and lower extremity weakness with paresthesia. Pertinent review of systems included malaise, fever, cough, left lower quadrant pain without weight loss, and rash. Previous evaluation included multiple CT scans of her abdomen that revealed colonic thickening. Ensuing colonoscopy revealed chronic ulcers with cytopathic changes consistent with cytomegalovirus.