The lesion arising from modified smooth muscle cells of the glomus body in the digits is best described as:

The lesion arising from modified smooth muscle cells of the glomus body in the digits is best described as:

• A. Hemangioma
• B. Glomus tumor (glomangioma)
• C. Lymphangioma
• D. Kaposi sarcoma

Answer: (B)

The main idea here is that the lesion originates from glomus cells, which are the modified smooth muscle cells of the glomus body found in the digits. A neoplasm arising from those cells is best described as a glomus tumor (glomangioma). Glomus bodies function as tiny arteriovenous shunts involved in temperature regulation, and the glomus cells encircle the small vessels. When a tumor arises from these cells, it forms a small, painful nodule in the fingers, most commonly under or near the nail bed, with notable sensitivity to cold. This helps distinguish it from the other options: a hemangioma is a vascular tumor of endothelial origin, a lymphangioma comes from lymphatic vessels, and Kaposi sarcoma is a malignant vascular spindle-cell tumor linked to HHV-8 infection and immunosuppression. The key feature tying this lesion to the correct name is its origin from the glomus cells of the glomus body in the digits.

The main idea here is that the lesion originates from glomus cells, which are the modified smooth muscle cells of the glomus body found in the digits. A neoplasm arising from those cells is best described as a glomus tumor (glomangioma). Glomus bodies function as tiny arteriovenous shunts involved in temperature regulation, and the glomus cells encircle the small vessels. When a tumor arises from these cells, it forms a small, painful nodule in the fingers, most commonly under or near the nail bed, with notable sensitivity to cold.

This helps distinguish it from the other options: a hemangioma is a vascular tumor of endothelial origin, a lymphangioma comes from lymphatic vessels, and Kaposi sarcoma is a malignant vascular spindle-cell tumor linked to HHV-8 infection and immunosuppression. The key feature tying this lesion to the correct name is its origin from the glomus cells of the glomus body in the digits.