Patients with massive and overt OGIB are the best candidates for CE. Earlier CE, virtually within a week, contributes to the better diagnostic yield of the procedure. Careful follow-up seems necessary for patients with massive bleeding even in cases of negative CE findings.

No abstract

In anthropoid primates, it has been hypothesized that the magnitude of maxillary sinus growth is influenced by adjacent dental and soft tissue matrices. Relatively, little comparative evidence exists for the perinatal period when secondary pneumatization is at its earliest stages in some primates. Here, dental and midfacial variables were studied in a perinatal sample of four anthropoid primates, including three callitrichines (Leontopithecus, Saguinus, and Callithrix) and Saimiri boliviensis. In the latter species, the maxillary recess (the ontogenetic precursor to a “true” maxillary sinus) does not undergo secondary pneumatization. Using histological methods and micro‐computed tomography, midfacial and dental dimensions and radiographic hydroxyapatite density of tooth cusps were measured. The distribution of osteoclasts and osteoblasts was also documented. Kruskal–Wallis's one‐way analysis of variance tests indicates significant (P < 0.05) differences among groups for dental and midfacial measurements. In particular, the posterior maxillary dentition is relatively larger and more mineralized in Saimiri compared to the callitrichines. At posterior dental levels, Saimiri has the lowest palatonasal index [interdental (palatal) width/width of the nasal cavity] and highest bizygomatic–interorbital index. Distribution of osteoclasts indicates that the inferomedial surfaces of the orbits are resorptive in perinatal Saimiri, whereas, in all callitrichines, these surfaces are depository. Taken together, these findings suggest that pneumatization in Saimiri is suppressed by an inward growth trajectory of the orbits, relatively large posterior dentition, and a correspondingly compressed nasal region. Am J Phys Anthropol, 2011. © 2010 Wiley‐Liss, Inc.

Chronic nonspecific multiple ulcers of the small intestine (CNSU) and nonsteroidal anti-inflammatory drug-induced enteropathy (NSAID-enteropathy) share common clinicopathologic features characterized by histologically nonspecific ulcers and persistent blood loss. The aim was to compare enteroscopic findings between CNSU and NSAID-enteropathy. Four patients with CNSU and five patients with NSAID-enteropathy were examined by enteroscopies. The site of involvement was heterogeneous in NSAID-enteropathy, while the ileum was the predominant site in CNSU. Three patients with NSAID-enteropathy and all four patients with CNSU had concentric stenosis. Circular ulcers were found in all five patients with NSAID-enteropathy and in three patients with CNSU. Active ulcer was seen in only two patients with NSAID-enteropathy. In contrast, all four patients with CNSU had active ulcer. These findings suggest that in patients with persistent GI bleeding and enteroscopically active small intestinal ulcers, CNSU, as well as NSAID-enteropathy, should be considered.