| Distinguishing sarcomatoid mesothelioma from sarcomatoid carcinomas and other sarcomas may be difficult. |
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| Conclusion: The sarcomatoid carcinoma of the upper airways is rare, but not unusual. |
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| Rare subtypes include carcinoid tumors, bronchial gland carcinomas and sarcomatoid carcinomas. |
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| Summary: Introduction: The sarcomatoid carcinoma of the superior aerodigestive tracts is a rare malignant tumour, which presents diagnostic and therapeutic challenges. |
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| While sarcomatoid renal cell carcinoma is also markedly pleomorphic with spindled or straplike cells, the cytoplasm is generally more dense and well defined. |
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| Due to its aggressive clinical course, sarcomatoid RCC is often treated with nephrectomy and systemic therapy, although there remains no consensus approach to treatment. |
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| The histological subtypes verrucous, papillary, and verrucoid are low risk, and the usual SCC is intermediate risk and the sarcomatoid or basaloid variants are high risk. |
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