Which histological feature is the hallmark of the 'proliferative phase' of Diffuse Alveolar Damage (DAD)?
Show answer and explanation
Correct answer: Type II pneumocyte hyperplasia and granulation tissue
Following the exudative phase characterized by hyaline membranes, the proliferative phase involves the repair of the alveolar lining via Type II pneumocyte hyperplasia and the organized growth of fibroblasts. This represents the lung's attempt to heal after acute injury.
Keep practicing
More Respiratory Pathology questions
- A 55-year-old smoker presents with centriacinar emphysema. Which protease-antiprotease imbalance is primarily responsible for this tissue d…
- Which of the following is characteristic of the morphology of 'Curschmann spirals' found in the sputum of asthmatic patients?
- In the context of lobar pneumonia, which stage is characterized by an alveolus filled with fibrin, neutrophils, and disintegrated red blood…
- A biopsy of a lung mass reveals small, round-to-oval cells with scant cytoplasm, 'salt and pepper' chromatin, and frequent nuclear molding.…
- Which type of lung cancer is most frequently associated with a peripheral location and a precursor lesion known as Atypical Adenomatous Hyp…
- The presence of 'Ferruginous bodies' in a lung biopsy is an indicator of exposure to which of the following?