Lower gastrointestinal bleeding as an uncommon form of presentation in a small intestine neuroendocrine tumor.

Neuroendocrine tumors (NETs) are rare, with an annual incidence of 10/100,000 inhabitants, with an increase in incidence in the last 30 years that probably is due to an improvement in diagnostic techniques. However, NETs the second neoplasia most prevalent advanced disease of the gastrointestinal tract due to its high survival. It´s way of presentation is usually with vague symptoms and often without an incidental diagnosis from the use of imaging techniques. A correct differential diagnosis will allow us its early diagnosis and its treatment. We present the case of a patient diagnosed with NET whose symptoms of presentation was lower gastrointestinal bleeding with a negative endoscopic study.

Effect of a Diet Supplemented with Malic Acid-Heat (MAH) Treated Sunflower on Carcass Characteristics, Meat Composition and Fatty Acids Profile in Growing Lambs.

The objective of the study was to assess the effects of feeding sunflower meal (SM) and seeds (SS) protected against rumen degradation on carcass characteristics and composition and fatty acid (FA) profile of lamb meat. The protection of SM and SS was achieved by treating both feeds with malic acid at 150 °C for 2 h (MAH treatment) and in a previous study this treatment was shown to decrease ruminal degradability of protein of both feeds and fat degradability of SS. Two homogeneous groups of 12 lambs each were fed ad libitum high-cereal concentrates and cereal straw from 14 to 26 kg of body weight. The two concentrates differed only in the treatment SM and SS, which were included either untreated (control) or MAH treated. The MAH-fed lambs had greater thickness of dorsal fat (p = 0.016) and greater (p ≤ 0.016) values of the color parameters a* (redness) and C* (chromaticity) of the Rectus abdominis muscle. However, there were no differences in carcass measurements and in water-holding capacity, chemical composition, pH, color, or fatty acid of Longissimus muscle. In summary, the MAH treatment resulted in only subtle changes in meat composition and quality.