Introduction: Knowledge of the unpaired abdominal vasculature is important for uncomplicated operations. The absent celiac trunk has previously been reported; however, developmental alterations can result in a variety of branching patterns of the downstream arteries from the abdominal aorta. Case Presentation: A 53-year-old female patient with lymphoma underwent abdominopelvic computed tomography (CT) for staging. She had a history of postprandial off-and-on abdominal pain since her youth. CT scan revealed an absent celiac trunk with common hepatic and splenic arteries directly originating from the abdominal aorta. Compression of the median arcuate ligament had narrowed and angulated the 2 branches. Conclusions: When the celiac trunk is absent, its main branches may separately arise from the abdominal aorta. Also, due to the displacement of these branches, their path and diameter can vary from the normal.
Background: The present study evaluated purified protein derivative (PPD) changes based on mediastinal lymph node density. Methods: This cross-sectional observational study was performed on 130 patients who were referred to Valiasr and Amir Al-Momenin Hospitals in Arak, Iran for a CT scan for non-infectious and non-tumor reasons. The gender of the patients was recorded, and they then underwent non-contrast CT, and their mediastinal lymph node density was measured and recorded based on the Hounsfield units. Patients were evaluated for changes in the tuberculin test. The induration diameter obtained from the tuberculin test was recorded for each individual. Data analysis was then carried out using SPSS software ver. 20. Results: There was a positive correlation between mediastinal lymph node density and tuberculin test induration diameter, so larger induration diameter in the tuberculin test results in increasing lymph node density result (r = 0.429, P < 0.001). There was a negative correlation between mediastinal lymph node density and age, i.e., mediastinal lymph node density decreased with increasing age (P < 0.001, r = -0.616). Lymph node density was higher in men than in women (P = 0.022). Conclusions: There is a positive correlation between the mediastinal lymph node density and the tuberculin test induration diameter, and the tuberculin test induration diameter increases with increasing lymph node density. There is a negative correlation between the mediastinal lymph node density and age, i.e., the mediastinal lymph node density decreases with increasing age. Lymph node density was also higher in men than in women. Therefore, the results can help ensure an earlier diagnosis of pulmonary tuberculosis, and measuring the mediastinal lymph node density is recommended.
Introduction: Absent right renal vein is very uncommon. This study aimed to describe a case of the absent right renal vein with drainage from the upper pole of the kidney into the right suprarenal vein and then into the ipsilateral gonadal vein. Case Presentation: A 25-year-old female patient with abdominal pain was referred to the radiology clinic for abdominopelvic computed tomography (CT) with oral and intravenous contrast. On CT images, the right renal vein was absent. The drainage of the right kidney was through the upper pole to the suprarenal vein and thereafter to the right gonadal vein and the inferior vena cava (IVC). Some suprarenal veins were drained to the superior mesenteric vein via collaterals. The IVC diameter, especially the intrahepatic portion, was decreased. Conclusions: The absence of the right renal vein is very rare, and to the best of our knowledge, drainage from the upper pole into the ipsilateral gonadal vein has not been previously reported in the literature.
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