Epithelioid cell histiocytoma

Epithelioid cell histiocytoma (pronunciation: epi-the-lee-oid cell his-tee-o-cy-to-ma) is a rare benign tumor that originates from histiocytes, a type of immune cell.

Etymology

The term "Epithelioid" is derived from the Greek words "epi" meaning "upon" and "thelē" meaning "nipple", referring to the cell's resemblance to epithelial cells. "Histiocytoma" is derived from the Greek words "histio" meaning "tissue" and "cytoma" meaning "tumor".

Description

Epithelioid cell histiocytoma is characterized by the presence of epithelioid cells, which are large cells with abundant eosinophilic cytoplasm and vesicular nuclei. These cells are arranged in a nodular pattern and are often accompanied by a mixed inflammatory infiltrate. The tumor is usually solitary and is most commonly found on the extremities, although it can occur anywhere on the body.

Diagnosis

Diagnosis of epithelioid cell histiocytoma is typically made through histopathology, which involves the microscopic examination of tissue in order to study the manifestations of disease. Immunohistochemical staining can also be used to confirm the diagnosis.

Treatment

Treatment for epithelioid cell histiocytoma typically involves surgical excision of the tumor. In most cases, this is curative and recurrence is rare.

Related Terms

• Epithelioid cell
• Histiocyte
• Tumor
• Histopathology
• Immunohistochemistry

External links

• Medical encyclopedia article on Epithelioid cell histiocytoma
• Wikipedia's article - Epithelioid cell histiocytoma

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