A tissue-resident macrophage found in the alveoli of the lungs. Ingests small inhaled particles resulting in degradation and presentation of the antigen to immunocompetent cells. Markers include F4/80-positive, CD11b-/low, CD11c-positive, CD68-positive, sialoadhesin-positive, dectin-1-positive, MR-positive, CX3CR1-negative. [ MESH:D016676 GOC:ana GOC:dsd GOC:tfm http://purl.obolibrary.org/obo/go/references/0000031 ]

Synonyms: dust cell