MALIGNANT LYMPHOMA DEMONESTRATING SICK SINUS SYNDROME AND SUPERIOR VENA CAVA SYNDROME
Reports which describe sick sinus syndrome due to malignant lymphoma have been rare and only eight cases have been reported until now. This is a case of sick sinus syndrome and superior vena cava syndrome secondary to invasion of occult malignant lymphoma of the lung in a 60 years old male. There were no symptoms or signs of malignancy before the first presentation with sick sinus syndrome. Patient was treated with implantation of a permanent pacemaker. SA node involvement by lymphoma should be considered as an etiological factor when sick sinus syndrome of unknown cause is encountered.
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