| The bullous form of impetigo presents as a large thin-walled bulla containing serous yellow fluid. |
| The appearance of serous demilunes may, in fact, be an artifact of sample fixation. |
| Of the early-stage samples misclassified, 1 was serous and 3 were mucinous. |
| This wound is clean, healthy, and granulating, with a scant amount of serous drainage. |
| At this point, the ulcers may develop thin crusts or verrucous changes or may continuously drain serous fluid. |
| The serous coat is an extension of the peritoneum, and it covers only the superior and upper lateral surfaces. |
