This case involves a fifty-two-year-old male patient with a history of progressive left nasal obstruction and foreign body sensation that developed acutely over a few months. The patient underwent several endoscopic procedures to evaluate for possible obstruction. An endonasal excision of a left nasal polyp was conducted and a sample was sent to pathology for evaluation. The patient was not followed for eleven months and, in that time, a 1.9cm x 0.9cm mass went unrecognized and untreated. The mass was finally resected a year after the original presentation, but the pathology reports showed that irregular margins were present and the mass fully invaded surrounding tissue. By the time the mass was identified and resected, the patient had developed metastatic squamous cell carcinoma.