What are the symptoms of inflammatory pulmonary nodules

Lung disease is very serious because people's lives depend on breathing through the lungs. However, lung diseases can occur due to various reasons, and lung nodules are a disease problem that everyone is familiar with. The method of treating lung nodules needs to be determined based on the patient's specific condition, but surgical treatment is a problem for treating serious diseases. So what are the symptoms of inflammatory lung nodules?

1. Clinical features of inflammatory pulmonary nodules

Pulmonary sarcoidosis is also known as sarcoid tumor, Bowman's sarcoma, etc. It is a non-caseating granuloma. It is less common in China. There is a clear regional difference. It is more common in temperate zones, and has a higher incidence in Europe. In terms of race, blacks are the most numerous, followed by whites, and yellows are rare. Slightly more common in women. The disease can occur at any age, but is most common between 20 and 50 years old. The course of the disease varies greatly and tends to heal on its own.

The cause of the disease is unclear, but it is generally believed to be related to viral infection. The basic pathological changes of sarcoidosis are non-caseating granulomas (composed of epithelial cells, Langerhans giant cells, lymphocytes and fibrocytes), which can invade lymph nodes, lungs, eyes, skin, liver, bones and other tissues throughout the body. The lesions may be in the lymph nodes or lung parenchyma. The nodules may be completely absorbed within a few months or replaced by fibrous tissue, forming diffuse fibrosis of the lung interstitium.

Clinically, there are usually no symptoms or only mild respiratory symptoms, and chest signs are negative. Systemic peripheral lymphadenopathy accounts for approximately 40%. About 20% of patients have hepatosplenomegaly. The erythrocyte sedimentation rate is increased and the intradermal tuberculin test is often negative.

Differential Diagnosis of Inflammatory Pulmonary Nodules

The diagnosis of sarcoidosis should often be differentiated from lymphoma, lymphadenopathy, metastatic tumors, and mediastinal lymph node metastasis of lung cancer. Lymphoma usually starts from the paratracheal lymph nodes, most commonly involving the paratracheal lymph nodes, hilar and internal mammary lymph nodes. In the early stage, it involves a single lymph node. When the tumor is small, the X-ray manifestation is mild and it is often difficult to confirm. When the lymph nodes are significantly enlarged, the typical X-ray manifestation is symmetrical widening of the mediastinum in both directions. The tumor is mainly on both sides of the trachea, which can compress the trachea and narrow it. The tumor edge is clear and wavy, or obviously lobed. This type of tumor is more sensitive to radiation. Lymph node tuberculosis usually occurs in children or young people, while sarcoidosis often occurs in adults. Lymph node tuberculosis is often unilateral, and a positive tuberculin test indicates tuberculosis. Primary lung tumors and lung metastases are often accompanied by enlarged mediastinal and hilar lymph nodes, but they are more common in middle-aged and elderly people. Primary lung tumors often appear as a single lesion in the lungs, and metastatic tumors mostly have primary lesions outside the lungs.