74-year-old female suffers from recurrent episodes of paroxysmal atrial fibrillation (PAF) and has been recommended oral anti-coagulant therapy with warfarin (Coumadin). She has mitral regurgitation, and on the other hand was diagnosed as suffering from congenital bronchiectasis with several episodes of significant bleeding (hemoptysis). Following these hemoptoic episodes she underwent series of diagnostic as well as therapeutic pulmonary intervention (bronchoscopy, angiography, embolization).

66-year-old female underwent a left suboccipital craniotomy for resection of a tentorial meningioma. The postoperative course has been difficult, marked by deterioration associated with posterior temporal and cerebellar edema and hemorrhage. First she seems to be in good general conditions showing only a slight strength deficiency in the left upper limb, but about a month after the surgery she started showing asthenia and melena, and esophageal gastroduodenoscopy revealed a sclerosis of active arterial bleeding from duodenal ulcer.

5-year-old boy with diagnosis of neurofibromatosis type 1 underwent ophthalmological evaluation that showed picture of slight reduction in visual acuity of the right eye and severe hypovision of the left eye with slight reduction of the bilateral visual field. MRI showed presence of a big expansive lesion and of right temporopolar arachnoid cyst. The treating doctors recommended an urgent surgery in order to reduce the cerebral hypertension.

5-year-old boy with diagnosis of neurofibromatosis type 1 underwent ophthalmological evaluation that showed reduction in visual acuity and reduction of the bilateral visual field. MRI showed presence of a big expansive lesion and of temporopolar arachnoid cyst. The treating doctors recommended an urgent surgery in order to reduce the cerebral hypertension. In the expert's opinion, after having seen the images, the arachnoid cyst has not changed that much, and probably has little impact or effect, and therefore meanwhile no surgery is warranted.