Placement of pH probes during upper endoscopy: direct visualization is accurate.

Background: Accurate catheter placement in children for esophageal pH monitoring is performed following an endoscopy using a mathematical formula followed by confirmatory radiograph.

Aim: To determine if endoscopic visualization of the gastroesophageal junction can be used for sensor placement without the need for confirmatory radiograph.

Methods: Sixty-four catheters were placed using the Strobel formula method and 57 catheters were placed by visualization.

Malignant triton tumor presenting as a rectal mass in an 11-month-old.

We report the case of an 11-month-old white male who had a family history of neurofibromatosis, had multiple café-au-lait spots on the trunk and extremities, and was diagnosed with a malignant triton tumor of the rectum. To our knowledge, this is the first report of a malignant triton tumor of the rectum and one of the youngest patients reported with the tumor.