Imaging findings of urinary tuberculosis on computerized tomography versus excretory urography: through 46 confirmed cases.

BACKGROUND: Imaging findings of urinary tuberculosis (TB) on excretory urography (IVP) and CT have been reported to be nonspecific although CT may provide detailed informations. We performed a retrospective study of patients with proven urinary TB to compare imaging findings on IVP and CT and to make a systemic approach to imaging analysis of urinary TB. METHODS: Urinary TB was diagnosed in 46 patients who had IVP and CT examinations prior to definitive diagnosis and treatment. They were 30 females and 16 males with a mean age of 43.6 ys. We assessed the presence and frequency of urinary tract calcifications, autonephrectomy, renal parenchymal masses, renal parenchymal scarring, moth-eaten calices, amputated infundibulum, renal parenchymal cavities, hydrocalycosis, hydronephrosis, hydroureter and thick urinary tract walls. RESULTS: CT was most sensitive in detecting any renal parenchyma cavities (p=0.01), hydronephrois (p=0.0005), ureteral stricture (p=0.03) and walls thickening of the renal pelvis / ureter (p< 0.0001). Four imaging patterns were noted in 20 IVPs (43%) and 34 CTs (74%) with multiple findings. They were hydrocalycosis, hydronephrosis or hydroureter du to multiple stricture sites, ureteral stricture with thick wall, autonephrectomy combined with at least 1 other type of imaging finding and thick wall of renal pelvis or ureters and bladder with at least 1 other type of imaging finding. CONCLUSIONS: Renal parenchymal cavities, hydronephrosis, ureteral stricture and thickened urinary tract walls were significantly more common on CT than on IVP. Multiple findings on CT were more common and very useful for TB diagnosis. Thus, we recommend CT as the standard exam in patients with suspicion of urinary TB.

A primary hepatic lymphoma in a patient with Crohn's disease receiving thiopurine and anti-TNF therapy: a case report.

Primary hepatic lymphoma is a rare variant of non-Hodgkin's lymphoma with an incidence of 0.016% of all non-Hodgkin lymphomas. The most common histologic subtype is large diffuse B-cell lymphoma. Pathogenesis is not clearly established and undergoing immunosuppressive therapy has been proposed as a risk factor for primary hepatic lymphoma. We report an intriguing case study, featuring a 23-year-old male patient with Crohn's Disease who had been receiving a combination therapy of thiopurine and anti-TNF for 6 years and was diagnosed with primary hepatic diffuse large B-cell lymphoma.

Primary hepatic lymphoma is a rare type of cancer that mostly affects the liver and accounts for less than 1% of all lymphoma cases. The exact cause of primary hepatic lymphoma is unknown, but some evidence suggests that immunosuppressive therapy may increase the risk of developing this condition. We present a 23-year-old male patient who has a six-year history of Crohn's Disease, which is a long-lasting condition that causes inflammation. To manage his symptoms, he was taking two types of medications that weaken the immune system (thiopurine and anti-TNF medications). While being treated for Crohn's disease, he was also diagnosed with a rare type of primary hepatic lymphoma. This case raises intriguing questions about the relationship between immunosuppressive therapy and the development of primary hepatic lymphoma. It emphasizes the need for further research to better understand the underlying mechanisms and identify potential risk factors.