**Core Concept**
Tuberculosis (TB) is a bacterial infection caused by Mycobacterium tuberculosis that primarily affects the lungs but can also affect other parts of the body. In the context of TB, an infraclavicular lesion refers to a lesion or mass located below the clavicle, which is a common site for lymph node involvement in pulmonary TB.

**Why the Correct Answer is Right**
The correct answer is related to the lymphatic spread of TB. When TB infects the lungs, it can spread to the lymph nodes in the chest, including those located in the infraclavicular region. This is due to the hematogenous spread of the bacteria from the lungs to the lymph nodes. The lymph nodes in this region become enlarged and form a mass, which is known as an infraclavicular tuberculous lymphadenitis.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the question as it does not describe a known manifestation of TB.
**Option B:** This option does not accurately describe the typical location of TB lesions in the chest.
**Option C:** This option is incorrect as it describes a different type of infection that can cause lymphadenitis.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that TB can affect any part of the body, and the clinical presentation often depends on the site of infection. In the context of a chest X-ray, an infraclavicular lesion may be a sign of lymph node involvement in pulmonary TB.

**Correct Answer: B. Papatrizi's sign**