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Medical Terminology
Chapter 2: Integumentary System
| Term | Definition |
|---|---|
| 1. primary lesions | lesions arising from previously normal skin |
| 2. macule or macula | a flat, discolored spot on the skin up to 1 cm across Example: freckles |
| 3. Patch | a flat, discolored area on the skin larger than 1 cm Example: vitiligo |
| 4. Papule | a solid mass on the skin up to 0.5 cm in diameter Example: a nevus |
| 5. plaque | a solid mass greater than 1 cm in diameter and limited to the surface of the skin |
| 6. nodule | a solid mass greater than 1 cm that extends deeper into the epidermis |
| 7. tumor | a solid mass larger than 1-2 cm |
| 8. wheal | an area of localized skin edema (swelling) Example: a hive |
| 9. vesicle | little bladder; an elevated, fluid-filled sac (blister) within or under the epidermis up to 0.5 cm in diameter Example: a fever blister |
| 10. bulla | a blister larger than 0.5 cm Example: second-degree burn |
| 11. secondary lesions | lesions that result in changed=s to primary lesions |
| 12. erosion | gnawed away; loss of superficial epidermis, leaving an area of moisture but no bleeding Example: area of moistrue |
| 13. derm/o | skin |
| 14. xer/o | dry |
| 15. epithelium | cellular avascular layer covering external and internal surfaces of the body |
| 16. epidermis | outer layer of the skin |
| 17. melanin | dark brown to black pigment contained in melanocytes |
| 18. cherry angioma | a small, round, bright red blood vessel tumor on the skin, seen mostly in people over 30 |
| 19. telangiectasia | a tiny, red blood vessel lesion formed by dilation of a group of blood vessels radiating from a central arteriole, most commonly on the face, neck, or chest; also called spider angioma |
| 20. ecchymosis | bruise; a black and blue mark; a large purpura |
| 21. cicatrix of the skin | a mark left by the healing of a sore or wound, showing the replacement of destroyed tissue by fibrous tissue |
| 22. keloid | an abnormal overgrowth of scar tissue that is thick and irregular |
| 23. neoplasm | abnormal tissue that grows by more rapid than normal cellular proliferation |
| 24. dyplastic nevus | a mole with precancerous changes |
| 25. abscess | A localized collection of pus in a cavity formed by inflamed surrounding tissues, which heals when drained |
| 26. melanoma | malignant neoplasm composed of melanocytes |
| 27. onychia | inflammation of the fingernail or toenail |
| 28. paronychia | inflammation of the nail fold |
| 29. seborrhea | a skin condition marked by the hypersecretion of sebum from sebaceous glands |
| 30. tinea | a group of fungal skin diseases identified by the body part affected. |
Created by:
Mutoni
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