clinical recognition, 1293 management, 1295 treatment goals, 1293 Perianal skin tags, 1356 Pericardial disease, 368 Pericardial effusions, 527 Pericardial tamponade, 482 , 1279 –1280 , 1284 Pericardiocentesis, 1280 , 1281 f Pericarditis, 355 , 368 , 502 , 613 Perichondritis, auricular, 1329 –1330 , 1330 f Pericoronitis, 1315 Peridex, oral rinses, 1315 Perihepatitis, 756 Perilaryngeal airways, 41 Perilymphatic fistula, 159 Perineal lesions, 1356 Perineum, for burns, 1101 Perineum trauma, 1141 Periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome, 203 , 312 , 1317 Periodic fever syndrome, 203 Periodic paralysis syndromes, 560 Periodontal ligament (PDL), 1107 Periodontal soft tissue pathology, 1315 –1316 acute necrotizing ulcerative gingivitis (ANUG), 1315 –1316 , 1315 f dental lamina cyst, 1318 f eruption cyst, 1317 , 1317 f eruption hematoma, 1317 f eruption schedule, for teeth, 1315 t gingivostomatitis, crusted extraoral lesions, 1316 f herpes simplex virus type 1, 1316 mucocele, associated with minor salivary gland, 1318 f pericoronitis, 1315 primary herpetic gingivostomatitis, 1316 treatment goals, 1315 trench mouth, 1315 –1316 Periorbital cellulitis See Periorbital/orbital cellulitis