Correct!
1. Dendriform pulmonary ossification
Rather nodular and branching foci of metaplastic bone, occasionally protruding into the alveoli, were seen in the biopsy specimen. The pathogenesis of idiopathic pulmonary ossification is unknown. Serum calcium and phosphorus levels are usually normal. Corticosteroids, calcium-binding drugs, and low-calcium diets have no discernable benefit, although they have not been systematically evaluated; the role of bisphosphonates remains to be determined. Because there is no proven treatment for pulmonary ossification, any therapy directed at the ossification should be considered experimental and reserved only for symptomatic cases.
Diagnosis: Dendriform pulmonary ossification
References