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Keywords:

  • pituitary tumor;
  • macroadenoma;
  • abducens nerve palsy;
  • sumatriptan;
  • headache

We are reporting an interesting case of pituitary macroadenoma. The patient presented with sudden, bifrontal, pulsating headache; photophobia; and an abducens nerve palsy, due to extension of the tumor into the cavernous sinus region. The headache resolved completely after a subcutaneous injection of sumatriptan.