| The bland fibrous stroma is infiltrated by mature lymphocytes and plasma cells. |
| The cell islands were further demarcated from the surrounding stroma by reticulin condensation around groups of cells. |
| Once inside the stroma, the transit sequence is cleaved off by the stromal processing peptidase. |
| The stroma of the papillary fronds consisted of loose fibrous tissue with abundant, thin-walled, congested blood vessels. |
| The outer trophoblast cells of the released blastocyst begin to invade the epithelium, burrowing into the underlying endometrial stroma. |
| The stroma consists of fatty tissue and ligaments surrounding the ducts and lobules, blood vessels and lymphatic vessels. |
