“…Involvement of the
larynx, hypopharynx, cervical glands, esophagus, cervical lymph nodes, middle ear, and
mastoid is rare (5) , and tracheal
involvement is even rarer (5,11-13) , occurring in only 3% of all extramedullary
plasmacytomas (9) . As of 2005,
only 15 cases of solitary extramedullary plasmacytoma of the trachea had been reported
in the medical literature (8) .…”