Tuberculoma
Tuberculoma[edit | edit source]
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A tuberculoma is a well-circumscribed, tumor-like mass that results from the infection of tuberculosis (TB) in the body. It is a form of extrapulmonary tuberculosis and can occur in various organs, most commonly in the brain and lungs. Tuberculomas are composed of granulomatous tissue and are often associated with caseous necrosis.
Pathophysiology[edit | edit source]
Tuberculomas form when the Mycobacterium tuberculosis bacteria cause a localized infection that leads to the formation of a granuloma. This granuloma is a collection of immune cells that attempt to wall off the infection. Over time, the center of the granuloma may undergo caseous necrosis, leading to the characteristic appearance of a tuberculoma on imaging studies.
Clinical Presentation[edit | edit source]
The symptoms of a tuberculoma depend on its location. In the brain, a tuberculoma can cause neurological symptoms such as headache, seizures, and focal neurological deficits. In the lungs, it may be asymptomatic or cause symptoms similar to pulmonary tuberculosis, such as cough, hemoptysis, and chest pain.
Diagnosis[edit | edit source]
Diagnosis of a tuberculoma typically involves imaging studies such as computed tomography (CT) or magnetic resonance imaging (MRI). A positron emission tomography-computed tomography (PET-CT) scan can also be used to assess metabolic activity and differentiate tuberculomas from other lesions.
Definitive diagnosis often requires a biopsy to confirm the presence of Mycobacterium tuberculosis and to rule out other causes of similar lesions.
Treatment[edit | edit source]
The treatment of tuberculoma involves the use of antitubercular therapy (ATT), which includes a combination of antibiotics such as isoniazid, rifampicin, ethambutol, and pyrazinamide. The duration of treatment may vary depending on the location and size of the tuberculoma.
Prognosis[edit | edit source]
With appropriate treatment, the prognosis for patients with tuberculoma is generally good. However, complications can arise if the tuberculoma causes significant mass effect or if there is a delay in diagnosis and treatment.
Related Pages[edit | edit source]
PET-CT scan showing a tuberculoma
Tuberculoma with cavitation
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Contributors: Prab R. Tumpati, MD
