We report the case of a 42 years old, non-immunocompromised native Austrian living in Vienna. He presented at home with severe dyspnea and had to be intubated immediately. Shortly after hospital admission, he developed severe adult respiratory distress syndrome (ARDS) and septic shock with massive, bilobar patchy to confluent infiltrations and a need for norepinephrine. A CT-scan revealed severe loss of functional lung tissue with areas of consolidation and multiple communicating cystic spaces. Air leaking into the mediastinum through fistulas produced pneumomediastinum, pneumoperitoneum, and a massive soft tissue emphysema. Bronchoalveolar lavage performed within the first 24 hours of admission revealed + of acid-fast bacilli. Even though appropriate tuberculostatic medication was started immediately, the patient succumbed the next day to ARDS due to massive tuberculous pneumonia and miliary disease (Sepsis tuberculosis gravissima).