An unusual presentation of non-IBD related colorectal primary extranodal diffuse large B cell lymphoma with a colo-colonic fistula.

Diffuse large B cell lymphoma of the sigmoid colon and rectum is relatively uncommon and aggressive. Due to its nonspecific symptomatology, patients are often diagnosed late into the disease and present with life-threatening complications, such as hemorrhage, obstruction, or perforation, requiring emergent surgical intervention. Patients with colorectal lymphoma typically have inflammatory bowel disease or immunosuppression.

False-Positive 123I-Uptake Mimics Metastatic Lung Disease in a Patient With Interstitial Lung Disease Secondary to Scleroderma.

A 59-year-old woman with a history of papillary thyroid cancer status post total thyroidectomy and 131I ablation therapy presented with lower back pain and leg weakness. MRI of the lumbar spine revealed homogenously enhancing lesions at L1-L2 and L3-L4. Subsequent whole-body 123I-Na scan demonstrated significant 123I retention in the mid to distal esophagus, as well as diffuse uptake in basal segments of the lungs bilaterally.

Seeded Biopsy Tract Recurrence After Extirpative Surgery for Renal Cell Carcinoma.

Renal mass biopsy (RMB) is an increasingly utilized modality in the work-up of patients with suspicious renal masses. Recurrence of renal cell carcinoma (RCC) from biopsy tract seeding is exceedingly rare in the literature. We report a case of such a phenomenon.

The Utility of Adding a Liquid-Nutrient Meal to Aid Interpretation of Small-Bowel Transit Scintigraphy.

Small-bowel transit scintigraphy (SBTS) evaluates the accumulation of a radiolabeled meal in the terminal ileal reservoir (TIR) 6 h after ingestion. The location of the TIR may be difficult to determine because anatomic information is limited; for equivocal studies, the patient is asked to return the next day to help determine the TIR location by potential transit into the colon. The purpose of this study was to evaluate whether administration of an additional liquid-nutrient meal (LNM) at 6 h can promote movement of the radiolabeled meal to aid in the interpretation of SBTS and eliminate the need for the patient to return.

Pulmonary Artery Intimal Sarcoma: A Diagnostic Challenge Using a Multimodal Approach.

Pulmonary artery intimal sarcoma (PAIS) is a rare tumor without clear syndromic presentation other than nonspecific symptoms of cough, dyspnea, and weight loss. This diagnosis is difficult due to challenging radiographic interpretations of multiple imaging modalities. We present a case of a 60-year-old male, who presented to his pulmonologist and underwent a CT chest with IV contrast that initially suggested primary lung carcinoma.