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What is the primary composition of a lymphangioma?

  1. Mass of epithelial cells

  2. Tumor made up of lymphatic vessels

  3. Fibrous connective tissue

  4. Osseous tissue

The correct answer is: Tumor made up of lymphatic vessels

A lymphangioma is primarily composed of lymphatic vessels. This benign tumor arises from lymphatic vessels and can occur in various parts of the body, often in soft tissues. The presence of dilated lymphatic vessels is characteristic of this condition, distinguishing it from other types of tumors that may be made up of different types of cells or tissue. Understanding that lymphangiomas are not composed of epithelial cells, fibrous connective tissue, or osseous (bone) tissue is crucial. This knowledge helps in accurate identification and classification of the tumor, which is key to determining appropriate treatment and management.