title: [A case of giant tumorous shadow by pulmonary tuberculosis].
abstract: A 63-year-old woman who had been treated for myelodysplastic syndrome had a high fever. Chest radiography and computed tomography revealed a giant tumorous shadow from the right mediastinum to the hilum. She was treated with antibiotics but with little effect. The culture of bronchial washing fluid and sputum revealed Mycobacterium tuberculosis infection. There were no malignant cells in the sputum or bronchial washing fluid. Tumor markers were within normal limits. She was treated with isoniazid, rifampicin, streptomycin and pyrazinamide. On the sixth day of treatment, high fever disappeared, and sputum culture for tuberculosis became negative after two months. The size of the mass decreased with clinical improvement. The final diagnosis was pulmonary tuberculosis with mediastinal lymphadenopathy. Since the patient was a compromised host, the giant mass was considered to be induced by atypical response to mycobacterial infection.
authors.affiliation: National Hospital Organization Miyazaki-higashi Hospital.
authors.forename: Yuka
authors.initials: Y
authors.lastname: Kyoraku
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Ihi
authors.forename: Kaori
authors.initials: K
authors.lastname: Nomura
authors.forename: Takeaki
authors.initials: T
authors.lastname: Hiratsuka
mesh_terms: D000995:Antitubercular Agents / Q000627:therapeutic use; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D016867:Immunocompromised Host; D008206:Lymphatic Diseases / Q000000981:diagnostic imaging*; D008477:Mediastinal Diseases / Q000000981:diagnostic imaging*; D008875:Middle Aged; D009165:Mycobacterium Infections, Nontuberculous / Q000000981:diagnostic imaging* / Q000188:drug therapy; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging* / Q000188:drug therapy
chemical_list: D000995:Antitubercular Agents