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Sarcomatoid carcinoma

Field	Value
name	Sarcomatoid carcinoma
image	Tripolar Mitosis - breast carcinoma.jpg
caption	Metaplastic (sarcomatoid) carcinoma of the breast.
field	Oncology

Sarcomatoid carcinoma, sometimes referred to as pleomorphic carcinoma, is a relatively uncommon form of cancer whose malignant cells have histological, cytological, or molecular properties of both epithelial tumors ("carcinoma") and mesenchymal tumors ("sarcoma"). It is believed that sarcomatoid carcinomas develop from more common forms of epithelial tumors.

Types

Sarcomatoid carcinoma is a type of rare lung tumour under the category of poorly differentiated non-small-cell lung carcinoma (NSCLC). Based on its histological characteristics, it can be classified into giant cell carcinoma (almost completely consists of giant cells), spindle cell carcinoma (almost completely consists of spindle cells), pleomorphic carcinoma (at least 10% spindle/giant cells or consists of giant and spindle cells only), carcinosarcoma (mix of NSCLC and true sarcoma), and biphasic pulmonary blastoma (consists of embryonal type epithelial element and primitive mesenchymal stroma).

Locations

Sarcomatoid carcinomas have been identified in the small intestine in rare cases. They may have epithelioid and mesenchymal properties or be composed only of mesenchymal-type spindle cells, and are negative for CD117 and DOG1.

Some cases of sacromatoid carcinoma of the larynx are resistant to radiotherapy.

Epidemiology

This type of tumour have less than 1% incidence of all primary lung cancers. Primary lung tumours originated from the tissues of the lung, not metastasized from other locations in the body.

References

(2010). "Tumors and Tumor-like Conditions of the Lung and Pleura". Saunders/Elsevier.
(2016). "Clinical Radiation Oncology". Elsevier.
(September 2018). "Pulmonary Sarcomatoid Carcinomas: A Review". Advances in Anatomic Pathology.
(2015). "Odze and Goldblum Surgical Pathology of the GI Tract, Liver, Biliary Tract and Pancreas". Saunders.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

carcinoma

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