Lymphadenopathy, 253 –254 , 314 , 421 , 847 , 1347 causes, 307 –313 , 310 t cervical, 307 –312 definition, 307 differential diagnosis, 307 evaluation and decision, 315 –316 generalized, 313 –314 of head and neck, 312 of iliac nodes, 313 life-threatening, 314 –315 mechanism of, 307 Lymphatic malformations (LMs), 347 , 1351 –1352 Lymph node abscess, 311 f Lymph nodes of body, 309 f of head and neck, 308 f Lymphocytic thyroiditis, 1348 Lymphocytosis, 309 Lymphogranuloma venereum, 312 Lymphoma, 317 Lymphonodular hyperplasia, 218 Lysergamides (LSD), 1072 –1073 M Mackler triad, 369 Macrophage activation syndrome (MAS), 997 , 1018 –1019 Magic mouthwash, 1316 Magnesium sulfate, 56 t Magnetic resonance cholangiopancreatography (MRCP), 293 Magnet ingestions, 210 Major burns clinical assessment, 1098 –1099 clinical recognition, 1098 evidences, 1098 management antibiotics, 1100 blisters, 1101