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Pulmonology / Respiratory

Mycobacterium fortuitum Lung Disease

ICD-10 Code
A31.0_4

Clinical Criteria for Mycobacterium fortuitum Lung Disease.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with chronic productive cough, progressive dyspnea, and constitutional symptoms including low-grade fevers, night sweats, and unintentional weight loss. History is notable for underlying structural lung disease (e.g., bronchiectasis, COPD) or prior pulmonary insults. Symptoms are refractory to standard courses of community-acquired pneumonia antibiotics.

Clinical Examination Findings

General: Patient appears chronically ill, cachectic. Respiratory: Auscultation reveals localized or diffuse crackles, rhonchi, or bronchial breath sounds, most prominent in the upper lobes. Signs of consolidation or pleural involvement may be present. Cardiovascular: Tachycardia may be noted secondary to systemic inflammation.

Treatment Protocol

Initiate multi-drug antimicrobial therapy based on susceptibility testing, typically involving a macrolide (e.g., azithromycin or clarithromycin) combined with a fluoroquinolone (e.g., moxifloxacin) and/or an aminoglycoside (e.g., amikacin) for the initial phase. Long-term treatment duration (minimum 12 months of culture-negative status) is required. Monitor for drug-related toxicities, including ototoxicity, nephrotoxicity, and QTc prolongation.

Detailed clinical guide coming soon.