Incidental Finding of a Persistent Right Vitelline Artery in a 13-Year-Old Boy with Acute Appendicitis: A Case Report with Clinico-Pathological Correlation and a Comprehensive Literature Review.

The persistence of fetal vitelline structures may occur. The primary intestinal arterial supply development happens normally in this scenario, but a vitelline vascular remnant (VVR) persists. A 13-year-old boy with a history of severe and intermittent abdominal pain since early infancy presented to the Emergency Department with clinical, analytical, and ultrasonographic findings suggestive of acute appendicitis.

Assessing mucosal recovery in celiac disease - Time to diagnosis and histological severity as determining factors.

Background And Objectives: there is a huge disparity in mucosal recovery among celiac patients on a gluten-free diet. We report a study to identify associated factors.

Methods: celiac cases were collected that had positive celiac serology and villous atrophy at diagnosis, and had undergone a control biopsy after at least 12 months of follow-up.

An atypical bronchogenic cyst with yeast over-infection.

Bronchogenic cysts (BC) are rare congenital anomalies that result from abnormal budding of the tracheobronchial tree during fetal development. BC are usually located in the lung and the mediastinum, an abdominal location is unusual.

Signet ring cell carcinoma in a juvenile polyp.

Juvenile polyps are hamartomatous lesions, usually unique, which appear at an early age. They are usually located in the rectosigmoid junction and are not thought to imply a higher risk of colorectal cancer. Here we report a case of signet ring cell (SRC) carcinoma in this type of lesion.

Tissue effects of glutamine in rectal cancer patients treated with preoperative chemoradiotherapy.

Background: The aim was to evaluate the effects of glutamine on tumor regression and histological damage in patients with rectal patients following chemoradiotherapy previous to surgery.

Material And Methods: Ten patients with rectal cancer surgically removed after chemoradiotherapy were included, a subgroup of a randomized trial that compared glutamine and placebo in the prevention of acute radiation enteritis. Samples of neoplasm and healthy tissue were evaluated by an expert pathologist searching for signs of tumor regression, muciphages, and signs of radiation-induced damage.