&Costochondritis=Costochondritis is an inflammatory process of the costochondral or costosternal joints which causes localized pain and tenderness. The second to fifth costochondral junctions most commonly are involved. The onset is often insidious. Chest wall pain with a history of repeated minor trauma or unaccustomed activity (eg, painting, moving furniture) is common. Pain may be exacerbated by trunk movement, deep inspiration, and/or exertion. The pain is usually sharp, nagging, aching, or pressure-like. It is usually quite localized but may extend or radiate extensively. On exam pain with palpation of affected costochondral joints is a constant finding in costochondritis.