Sinonasal undifferentiated carcinoma (SNUC) is an infrequent tumor described by Frierson et al. in 1986. Since its initial description, fewer than 100 patients have been reported.
We present a case of a SNUC invading the orbit in a 57-year-old woman, for which the findings are documented by CT scan, light and electron microscopy.
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KleinE.A., AnzilA.P., MezzacappaP., BorderonM., HoV.Sinonasal primitive neuroectodermal tumor arising in a longterm survivor of heritable unilateral retinoblastoma. Cancer1992; 70: 423–9.
