We present a case of obscure gastro-intestinal bleeding due to small bowel angiodysplasia in a 68-year-old woman with severe aortic valve stenosis. The diagnosis was confirmed and subsequently managed using single-balloon enteroscopy.

Orbital cellulitis is rarely reported after strabismus surgery; fewer than 10 cases have been reported. Nonetheless, orbital cellulitis is a potentially sight- and life-threatening condition. A high index of suspicion, use of a multidisciplinary approach, early diagnosis, aggressive treatment, and close monitoring are all important means of avoiding potentially irreversible visual loss and systemic complications. We report a case where early use of aggressive treatment to manage a post-strabismus surgery infection led to a good outcome.

Tuberculosis usually affects the respiratory system, but it may present atypically involving multiple systems, extrapulmonary systems, and manifest as a protein disorder. Here we report a case of splenic tuberculosis associated with monoclonal gammopathy of undetermined significance, and pericarditis. The diagnosis, confirmed by a plugged biopsy of the spleen, precluded the need for splenectomy in this patient and allowed prompt initiation of treatment, thereby avoiding the complications of tuberculous pericarditis and splenic infection.

Well-documented potential cardiovascular complications associated with the use of contrast media include bradycardia, hypotension, arrhythmia, and conduction disturbances. Rupture of the myocardium after acute myocardial infarction is a known cause of death, but has yet to be recognised as a potential complication of the use of a bolus injection of contrast medium. On the contrary, contrast-enhanced computed tomographic studies have been performed widely for the diagnosis and evaluation of myocardial infarction. We report a case of complicated myocardial rupture after a single bolus injection of contrast medium during a computed tomographic study in an elderly woman with acute myocardial infarction, which led to cardiac tamponade and rapid death. Although rare, this should alert us to the need for cautious use of contrast medium in patients with acute myocardial infarction.

Argon plasma coagulation is increasingly used in endoscopic haemostasis. This case report illustrates the potential for thermal injury at a staple line remote from the area of argon plasma coagulation treatment as a result of electrical arcing. Increasing numbers of colorectal anastomosis and reconstruction procedures are now being performed using stapling techniques and the use of argon plasma coagulation in these patients has become a common situation in clinical practice. Information about this potential danger should be well disseminated to endoscopists and surgeons to avoid preventable complications. The presence of a staple line nearby should be considered a contra-indication for argon plasma coagulation.