What Does The Presence Of Fibrohazed Densities In Both Upper Lobes On My Chest PA X-ray Indicate?

Hello. May I ask for the explanation of this result. CHEST PA There are fibrohazed densities in both upper lobes. Heart is not enlarged. Diaphragm and sulci are intact. The rest of the visualized thoracic structures are unremarkable. Thank you for answering my question.