Ko M.-J.Wu C.-C.HSIEN-CHING CHIU2019-12-052019-12-0520051027-8117https://www.scopus.com/inward/record.uri?eid=2-s2.0-15244349230&partnerID=40&md5=b2c9405e36eecf3dae5914f473692f53https://scholars.lib.ntu.edu.tw/handle/123456789/435109Tuberculous gumma, also called metastatic tuberculous abscess, is a multibacillary type of skin tuberculosis caused by hematogenous spread of mycobacteria from a primary focus. We report a patient with tuberculous gumma on the right shin. The 68-year-old woman with pulmonary miliary tuberculosis and an occult non-Hodgkin lymphoma was found to have a pigeon-egg sized, soft nodule on the right shin. Histopathologic examination showed granulomatous inflammation with occasional giant cells and a pronounced inflammatory infiltrate in the deep dermis and subcutaneous tissue. Extensive necrosis with abscess formation was also noted. Acid-fast stain revealed multiple acid-fast bacilli. The tissue culture yielded Mycobacterium tuberculosis. The patient was treated with rifampin, isoniazid, pyrazinamide, and ethambutol daily for the initial 2 months, and isoniazid and rifampin for 4 more months. No recurrence of any skin lesion has been noted.Cutaneous metastatic tuberculous abscess; Tuberculous gumma[SDGs]SDG3ethambutol; isoniazid; pyrazinamide; rifampicin; acid fast bacterium; aged; article; case report; cutaneous metastatic tuberculous abscess; dermis; female; giant cell; granulomatous inflammation; histopathology; human; inflammatory infiltrate; lung tuberculosis; miliary tuberculosis; Mycobacterium; Mycobacterium tuberculosis; nonhodgkin lymphoma; nonhuman; recurrence risk; skin abscess; skin necrosis; skin nodule; skin tuberculosis; subcutaneous tissue; tissue culture; treatment outcome; tuberculous gummajournal article2-s2.0-15244349230