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Updated: Jun 18, 2026

Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas
Published on: February 28, 2019
[Metastasis to the sinonasal region]
Carlos S Duque-Fisher1, Roy Casiano, Alejandro Vélez-Hoyos
1Hospital Pablo Tobon Uribe, Medellin, Colombia. casiduque@hotmail.com <casiduque@hotmail.com>
Metastasis to the sinonasal region, though rare, can mimic primary tumors. Biopsy is crucial for diagnosing these secondary cancers, guiding treatment for patients with thyroid, pancreas, or renal cell carcinoma origins.
Area of Science:
- Oncology
- Otorhinolaryngology
- Pathology
Background:
- Metastasis to the sinonasal region is uncommon.
- Symptoms of sinonasal metastasis can resemble primary sinonasal tumors.
- Accurate diagnosis often relies on histopathological examination.
Observation:
- Two cases of metastatic carcinoma to the sphenoid sinus from primary thyroid and pancreatic cancers were observed.
- Two cases of metastatic renal cell carcinoma to the left nasal vestibule were identified.
Findings:
- Metastatic tumors in the sinonasal area present diagnostic challenges.
- The origin of metastasis can be diverse, including thyroid, pancreas, and kidney.
- Biopsy remains the gold standard for definitive diagnosis.
Implications:
- Early and accurate diagnosis of sinonasal metastasis is vital for appropriate patient management.
- Understanding the diverse origins of sinonasal metastases aids in comprehensive cancer care.
- This highlights the importance of considering metastatic disease in unexplained sinonasal symptoms.
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