Glomus tumor (glomangioma) arises from modified smooth muscle cells of which structure?

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Study for the CVP and GI Pathology Exam 1. Engage with flashcards and multiple-choice questions, each with hints and explanations. Prepare thoroughly for your test!

Multiple Choice

Glomus tumor (glomangioma) arises from modified smooth muscle cells of which structure?

Explanation:
Glomus tumor arises from glomus cells, which are modified smooth muscle cells located in the glomus body. The glomus body is a small dermal structure that acts as a neuromyoarterial unit to regulate thermoregulation by shunting blood through a capillary–arteriovenous network. Because the tumor originates from these glomus cells, it is a neoplasm of the modified smooth muscle component of the glomus body, not from lymphatic vessels, endothelial lining, or a nerve sheath.

Glomus tumor arises from glomus cells, which are modified smooth muscle cells located in the glomus body. The glomus body is a small dermal structure that acts as a neuromyoarterial unit to regulate thermoregulation by shunting blood through a capillary–arteriovenous network. Because the tumor originates from these glomus cells, it is a neoplasm of the modified smooth muscle component of the glomus body, not from lymphatic vessels, endothelial lining, or a nerve sheath.

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