Asymptomatic primary rectal neuroendocrine carcinoma presented as a large pelvic mass.

A 55-year-old healthy Thai man presented with incidental finding of a well-circumscribed, 5.8×5.4 cm mass in the right side of the pelvic cavity with heterogeneous density by a CT scan performed for trauma.

Hydrocolonic sonography: a complete colorectal evaluation technique with preliminary results.

Background: Hydrocolonic ultrasound (HUS) is a low-cost imaging modality as compared with standard colonoscopy. However, HUS is not popular in the clinical setting due to its somewhat complicated technique of examination and inability to visualize the rectum. We developed a technique to overcome these limitations.

Asia-Pacific consensus recommendations for endoscopic and interventional management of hilar cholangiocarcinoma.

Hilar cholangiocarcinoma (HCCA) is one of the most common types of hepatobiliary cancers reported in the world including Asia-Pacific region. Early HCCA may be completely asymptomatic. When significant hilar obstruction develops, the patient presents with jaundice, pale stools, dark urine, pruritus, abdominal pain, and sometimes fever.

Extravasation of the contrast in the unused urinary bladder.

Ruptured bladder or extravasation from the bladder is almost always associated with trauma. Spontaneous extravasation is extremely rare with only a few reported cases. All those reported extravasations occurred in the patients diagnosed with end stage renal disease (ESRD) and were self limiting conditions.