Differential diagnosis As the histologic and clinical indications, as well as tumor markers such as the CA-125, are similar, it is often difficult to differentiate<unk>  from cancer. For these reasons, tuberculosis should always be considered in the differential diagnosis of cancer.
Tuberculoma
Histiocytoma
Atypical pulmonary carcinoid tumour
Mucinous cystadenocarcinoma of the lung
Oncocytoma
Salivary gland–like carcinoma of the lung
Mastocytoma
Pulmonary sclerosing pneumocytoma