72-year-old female with elevated levels of the tumour marker CA 19-9 but none of the diagnostic tests showed any tumour finding. The levels of CA 19-9 remained in the pathologic range, although with decreasing values. Currently, the patient is not reporting any significant symptoms.

51-year-old female with vitamin D deficiency and incompatibility between the PTH and vitamin D levels. She reports that as a child she had numerous cavities in her jaw, and her daughter also had multiple tooth fillings. She wonders whether the reason could be genetic abnormality.

51-year-old female with vitamin D deficiency among other medical problems: high blood pressure, episodes of transient syncope, and sleep apnea. In the expert's opinion frequent changes and discontinuations of drugs as well as big intervals between one dose to another, can be responsible for hypertensive crisis. Therefore the expert recommends to stop too frequent investigations , and instead focus on appropriate treatment, that should be combination of Angiotensin Receptor Blocker and diuretics.

52-year-old male was diagnosed in 2004 with a carcinoma of the lower rectum and underwent surgical anterior resection of the rectal tumor which was a well differentiated adenocarcinoma. In 2008 he underwent emergency operation for a perforated pyloric ulcer and then a radical resection of a gastric tumor which infiltrated the entire thickness of the gastric wall. It was a G3 diffuse type adenocarcinoma with signet ring cells, at pT3N2 stage.

54-year-old obese male with end stage renal disease due to membranous nephropathy, has received 2 renal transplants in the past and is highly sensitized. He underwent coronary angiography for vessel CAD, and PTCAs and stanting were performed. His current treatment consists of multiple medications including mycophylate according to the instructions of his transplant nephrologist. His cardiologists sees no contraindication to transplantation.

45-year-old male who presented with acute onset of flaccid paraparesis more pronounced on the left, sensation of current shocks in both legs and sensory level from the umbilicus downwards. The symptoms have reached their pick within less than a day. On examination the left lower limb was plegic and the right lower limb was partially weak. EMG was interpreted as demyelinating sensorimotor neuropathy. MRI showed hyperintense signals at the dorsal terminal segment of the marrow consistent with myelitis.