These results suggest that endoscopic endoprosthesis for large or difficult CBD stones is an effective method to clear the duct in selected cases, as well as an important definitive treatment in high-risk patients.

The presence of tumour giant cells in lung carcinoma does not, in itself, indicate a more aggressive tumour type, Giant cell carcinoma of the lung does not appear to be a distinct entity but a morphological phenotype expressed by a heterogenous group of tumours. We support and advocate the use of an encompassing term such as 'pleomorphic' or 'anaplastic' carcinoma for those tumours showing no specific differentiation pattern but which express diverse morphological features such as giant cell formation, clear or spindle cell change.

Black esophagus is an uncommon entity that has been described only a few times previously. It is defined as a dark pigmentation of the esophagus associated with histologic mucosal necrosis. Most cases have no known etiology, although ischemia, nasogastric tube trauma, infection, gastric outlet obstruction, gastric volvulus, and hypersensitivity to antibiotics have all been suggested as possible causes. Herein we report the case of a young, healthy, athletic man who developed black esophagus due to severe vomiting after alcohol overindulgence and summarize the other published cases to date.

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