Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
RECA‐1‐immunoreactivity in the synovial membrane. (A) RECA‐1‐reactions are localized in the endothelial cells (arrows) of the capillaries (V) and several lining cells (arrowheads). (B) An immunoelectron micrograph of the boxed area in (A). Immunopositive lining cells (A) possess filopodia‐like surface folds, indicating macrophage‐like type A cells. Type B cells (B) are immunonegative. *Articular cavity. Scale bars: 20 μm (A), 4 μm (B).
