Hampton hump is feature of ?
**Core Concept**
Hampton hump refers to a specific radiographic finding seen on chest X-rays, which is indicative of pulmonary embolism. It is characterized by a wedge-shaped or triangular area of consolidation in the periphery of the lung, often accompanied by a pleural effusion. This phenomenon is attributed to the blockage of a pulmonary artery branch by an embolus.
**Why the Correct Answer is Right**
The Hampton hump is a result of the infarction of lung tissue due to the obstruction of blood flow. When a pulmonary embolus blocks a pulmonary artery branch, it leads to ischemia and subsequent infarction of the lung tissue supplied by that artery. This infarction is often accompanied by an inflammatory response, which results in the formation of a wedge-shaped area of consolidation visible on chest X-rays. The presence of a Hampton hump is a classic radiographic sign of pulmonary embolism.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not describe a characteristic feature of pulmonary embolism.
**Option B:** This option is incorrect because it is a different radiographic sign associated with a different condition.
**Option C:** This option is incorrect because it is a different type of lung lesion with distinct radiographic features.
**Clinical Pearl / High-Yield Fact**
The Hampton hump is a classic radiographic sign of pulmonary embolism, and its presence should prompt further investigation and management to prevent complications.
**Correct Answer: C. Pulmonary Embolism**