Pulmonary inflammatory pseudotumor, also known as inflammatory myofibroblastic tumor (IMT), is a rare non-neoplastic (non-cancerous) lesion that primarily affects the lung. It is characterized by the formation of a mass or a tumor-like growth that results from an abnormal inflammatory response.
This condition typically occurs in children and young adults, although it can also be observed in older individuals. The exact cause of pulmonary inflammatory pseudotumor is not fully understood; however, it is believed to develop as a result of an exaggerated immune response to inflammation or infection.
The symptoms of pulmonary inflammatory pseudotumor can vary greatly and may include cough, chest pain, shortness of breath, and occasionally, coughing up blood. Some affected individuals may remain asymptomatic, while others may experience more severe symptoms.
Diagnosing pulmonary inflammatory pseudotumor requires a combination of clinical evaluation, imaging studies (such as chest X-ray or computed tomography scans), and sometimes a tissue biopsy to confirm the condition. The histological examination of the biopsy sample is crucial in distinguishing this condition from other more malignant tumors.
The treatment approach for pulmonary inflammatory pseudotumor is based on the individual's symptoms, the location and size of the lesion, and the overall health status of the patient. In some cases, observation and close monitoring may be sufficient, especially for smaller lesions that are not causing significant symptoms. However, in larger or symptomatic cases, surgical removal of the pseudotumor may be necessary.
Prognosis for pulmonary inflammatory pseudotumor is generally favorable, with most cases exhibiting a benign course and a low likelihood of recurrence. However, long-term follow-up is important to ensure that the condition does not progress or recur.
