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Updated: Apr 22, 2026
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Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas
Published on: February 28, 2019
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[Sinonasal undifferentiated carcinoma: 2 cases report]
Summary
Sinonasal undifferentiated carcinoma is a rare cancer with non-specific symptoms like unilateral nasal obstruction and bleeding. Despite surgical and adjuvant treatments, distant metastasis remains a challenge, impacting patient survival.
Area of Science:
- Oncology
- Pathology
- Otorhinolaryngology
Background:
- Sinonasal undifferentiated carcinoma (SNUC) is an exceptionally rare malignancy.
- Its clinical presentation often lacks specificity, commonly manifesting as unilateral nasal obstruction and epistaxis.
Observation:
- Two cases of SNUC were analyzed, with tumors located on the inferior turbinate and anterior nasal cavity floor.
- Tumors presented as dark red, irregular masses, with CT scans revealing space-occupying lesions and significant bone destruction.
Findings:
- Histopathological examination showed small-to-medium sized oval nuclei, a high nucleus-to-cytoplasm ratio, and active mitosis, confirming undifferentiated carcinoma.
- Despite complete surgical resection followed by radiotherapy and chemotherapy, both patients experienced distant metastasis.
Implications:
- SNUC poses a significant therapeutic challenge due to its aggressive nature and propensity for metastasis.
- The poor prognosis underscores the need for novel treatment strategies and further research into SNUC biology and management.
