Which condition is characterized by tenderness and swelling in the calves?

The condition characterized by tenderness and swelling in the calves is deep venous thrombosis (DVT). DVT occurs when a blood clot forms in a deep vein, often in the legs. The primary symptoms associated with DVT include swelling in the affected leg, pain or tenderness, particularly in the calf, and sometimes changes in skin color. The swelling may be unilateral and can occur suddenly.

Understanding DVT is crucial because it can lead to serious complications such as pulmonary embolism if the clot dislodges and travels to the lungs. Recognizing the signs and symptoms of DVT, such as calf tenderness and swelling, can lead to timely diagnosis and treatment, which may include anticoagulation therapy to prevent clot growth and complications.

The other conditions listed do not primarily present with calf tenderness and swelling. For instance, cellulitis is an infection of the skin and subcutaneous tissues, typically presenting with redness, warmth, and possibly systemic symptoms like fever, rather than isolated calf swelling. Asthma and bronchitis are respiratory conditions that affect the airways and typically manifest with respiratory symptoms such as wheezing, coughing, and shortness of breath, making them irrelevant to calf symptoms.