Erdheim-Chester disease is a non-Langerhans cell histiocytosis that is progressive and may lead on to multi-organ involvement. Pulmonary involvement is rare, its presentation is nonspecific, and it carries an adverse outcome. Several radiological features, when considered together, may point to the diagnosis.
Aggregate household income in Fredericksburg in 2016: $47,612,316 Distribution of median family income in 2016 (number of people) Median family income in Fredericksburg by age in 2016:
Many Fredericksburg-area residents commute to work by car, bus, and rail to Richmond, Fairfax, Prince William County, and Arlington, as well as Washington, D.C. This has led to Fredericksburg becoming a part of Northern Virginia not only geographically, but also culturally.