PMID: 8614884Apr 1, 1996Paper

Spontaneous resolution of a lung mass due to infection with Mycobacterium terrae

Southern Medical Journal
T H Spence, V M Ferris

Abstract

A 61-year-old smoker had a large right lung mass suggestive of bronchogenic carcinoma. Bronchoscopy showed what appeared to be tumor occlusion of a right middle lobe subsegment. Biopsies were nondiagnostic for malignancy. A scheduled percutaneous needle aspiration biopsy 1 week later was canceled because of a significant reduction in size of the lung mass. Acid-fast bacilli were subsequently found in bronchoscopic specimens, and treatment was started with isoniazid, rifampin, pyrazinamide, and ethambutol. The organism was identified as Mycobacterium terrae. In vitro resistance was noted to isoniazid. The early reduction in size of the mass before antimycobacterial therapy suggested that spontaneous regression may be part of the natural history of pulmonary infection with Mycobacterium terrae.

Citations

Jan 28, 2003·Journal of Feline Medicine and Surgery·S M HendersonD A Gunn-Moore
Mar 18, 2000·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·D S SmithJ L Cook
May 18, 2000·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·S CarbonaraG Angarano
Jan 1, 2010·The Annals of Occupational Hygiene·Elena MartinUdo Jäckel
Feb 22, 2001·Archivos de bronconeumología·N Díaz RicomáJ C Alado Arboleda
Oct 24, 2001·The Journal of Immunology : Official Journal of the American Association of Immunologists·Y KatoN Minato
Apr 29, 2009·Journal of Orthopaedic Surgery·B W MilneM R J Coolican
Nov 14, 2016·Microbiology Spectrum·Marvin J Bittner, Laurel C Preheim

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