Maitra A, Baskin L B, Lee E L
Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Arch Pathol Lab Med. 2001 Oct;125(10):1365-7. doi: 10.5858/2001-125-1365-MAIOSP.
Oncocytic schneiderian papillomas (OSPs) are uncommon benign neoplasms that arise from the sinonasal schneiderian epithelium. Malignancies arising in OSPs are rare, and, to our knowledge, only 14 such instances have been reported in the medical literature. We report 2 additional cases--a small cell carcinoma and a sinonasal undifferentiated carcinoma arising in OSPs and presenting synchronously with the benign neoplasm. The potential for malignant transformation in OSPs is small, but warrants that these papillomas be completely excised to exclude a coexisting carcinoma.
嗜酸细胞性 Schneiderian 乳头状瘤（OSP）是起源于鼻窦 Schneiderian 上皮的罕见良性肿瘤。OSP 发生恶变的情况罕见，据我们所知，医学文献中仅报道过 14 例此类病例。我们报告另外 2 例病例——1 例小细胞癌和 1 例鼻窦未分化癌，均发生于 OSP 且与良性肿瘤同时出现。OSP 发生恶性转化的可能性较小，但仍需将这些乳头状瘤完整切除以排除并存的癌。
