Focal Urinary Bladder Wall Thickening

Axial and sagittal-reformatted CT images show focal thickening of the posterior wall of the urinary bladder (arrows) with increased enhancement relative to normal bladder wall. 

Differential Diagnosis

• Tumor (benign, malignant, metastasis)
• Adherent clot
• Infection/inflammation (TB, cystitis cystica/glandularis, malakoplakia, schistosomiasis)
• Trauma (mural hematoma)
• Extravesical pathologies (spread of extravesical inflammation or tumor, endometriosis)

Facts

• Transitional cell carcinoma accounts for most focal bladder masses
• Most of the time it is impossible to distinguish tumor from other causes of focal wall abnormality and cystoscopy is necessary

Our case: Transitional cell carcinoma in a 73-year-old female

Reference

Patel U. Imaging And Urodynamics Of The Lower Urinary Tract. Springer 2010.

Bhargava. Ultrasound Differential Diagnosis. Jaypee Brothers Publishers, 2005.

Krukenberg Tumors

Axial and coronal-reformatted CT images of a 41-year-old woman shows an enlarged, solid-appearing right ovarian mass (arrows). The left ovary (not shown) is normal. 

Facts:

• Metastatic tumor to the ovary that contains mucin-secreting, signet ring cells
• Usually originate from primary tumors of GI tract (most common = colon and stomach)
• 10% of all ovarian tumors
• Occur in reproductive age

Imaging:

• Nonspecific appearance. Can be solid or mixed solid/cystic
• High suspicion for ovarian metastasis if:
• Bilateral 
• Complex-appearing ovarian masses
• Known GI tract tumor (esp. colon and stomach)
• MRI showing T1/T2 hyper intensity due to mucin

Our case: Ovarian metastasis from primary gastric cancer.

Reference:

Jung SE, et al. CT and MR imaging of ovarian tumors with emphasis on differential diagnosis. Radiographics 2002; 22:1305.

Slideshow: Imaging of Facial Trauma

Slideshow: Imaging of Non-traumatic Intracranial Hemorrhages

Imaging of Non-traumatic Intracranial Hemorrhage from Rathachai Kaewlai

Prepare for AOCR 2014

This year, the largest radiology meeting in Asia will be held in Kobe, Japan!

Many big names in radiology from around the world will be joining as invited speakers including JKT Lee, AR Margulis, M Prokop, D Resnick and H Hricak.

Scientific programs include all radiology subspecialties with interesting additions of IT, Radiation Safety and Emergency Radiology.

Kobe is an international port city with a long historical importance. The city is famous for European bakeries, Kobe beef, and fresh seafood. Sightseeing spots like Kyoto, Osaka, Nara and Hiroshima are reachable by day trips. During this time of the year, Kobe temperature ranges between 21 and 29 degrees Celsius. 

Details and registration information can be found at this LINK.