Open access colonoscopy: do primary care physicians use it properly?
It was found that 34% of the colonoscopies were performed for inappropriate indications. A higher proportion of relevant endoscopic findings was diagnosed among patients referred by surgeons, oncologists and internists as compared with those referred by family physicians. Considering that as much as 23% of polyps and malignant tumors were found in cases performed for inappropriate indications, we suggest that a liberal approach to the indications for colonoscopy--probably age over 50 years--may benefit the patients.
A relevant ectopic monomeric CT production could be excluded because the patients were without detectable CT concentration. For this reason, postoperative CT concentrations of the monomeric form in MTC patients can be traced either to remaining C cells or to tumor cells. For a differentiation of these two possibilities further diagnostics is necessary.