5-Minute Pediatric Consult
- Macrocytic anemia
- Macrophage activation defects
- Macroscopic hematuria
- Maculopapular cutaneous mastocytosis
- Mad cow disease
- Maffucci syndrome
- Magic mouthwash
- Magnesium salicylate toxicity
- Major depressive disorder (MDD)
- Malacia, definition of
- Malignant germ cell tumors
- Malignant histiocytosis
- Mammalian bites
- Mandible misalignment
- Mandibular fracture
- Mannosidosis
- Marasmus
- Marburg hemorrhagic fever
- Marinesco-Sjögren syndrome
- Maroteaux-Lamy syndrome
- Masked hypertension
- Masked mastoiditis
- Massive macronodular adrenal hyperplasia (MMAD)
- Mast cell disease
- Maternal autoimmune thrombocytopenia
- Mature B-cell lymphoma
- Mauriac syndrome
- Maxillary osteomyelitis
- May-Thurner syndrome
- Mazabraud syndrome
- McArdle disease
- McKusick-Kaufman syndrome
- Measles, mumps, rubella, and varicella (MMRV) vaccine
- Meckel-Gruber syndrome
- Meckel syndrome
- Meconium-stained amniotic fluid
- Mediastinal mass
- Medical marijuana
- Medication-overuse headache
- Medium-chain acyl-CoA dehydrogenase (MCAD) deficiency
- Medulloblastoma
- Megacalycosis
- Megalencephaly
- Megaloblastic anemia
- Megalocornea
- Megencephaly
- Melanocytosis, oculodermal
- Melanoma
- Membranoproliferative glomerulonephritis (MPGN)
- Menarche, premature
- Ménétrier disease
- Meniere disease
- Meningeal plague
- Mentzer index
- Mesenteric fibromatosis
- Mesenteric ischemia
- Mesenteric mass
- Mesial-temporal lobe epilepsy with hippocampal sclerosis
- Mesial temporal sclerosis
- Mesoblastic nephroma
- Mesothelioma
- Metabolic dysfunction–associated steatotic liver disease (MASLD)
- Metachromatic leukodystrophy
- Methamphetamine
- Methanol toxicity
- Methylmalonic acidemia
- Methylmalonic aciduria
- Methyl salicylate toxicity
- Mevalonate kinase deficiency (MKD)
- Microangiopathic hemolytic anemia
- Microcolon
- Microcornea
- Micronutrient-related malnutrition with deficiency or excess
- Microsomal triglyceride transfer protein inhibitors (MTTP)
- Microsporidia
- Microsporum
- Midchildhood acne
- Middle aorta syndrome
- Middle East respiratory syndrome (MERS)
- Midgut volvulus
- Mild traumatic brain injury (mTBI)
- Miliary tuberculosis
- Milk thistle
- Milroy disease
- Mink encephalopathy, transmissible
- Mirizzi syndrome
- Mismatch repair cancer syndrome
- Mitral stenosis
- Mitral valve prolapse
- Mitral valve stenosis
- Mixed gonadal dysgenesis (MGD)
- Mixed headache
- Mixed hearing loss
- Mixed neuronal-glial brain tumors
- Mixed receptive and expressive language disorders
- Moebius syndrome
- Mold allergy
- Molecular adsorbent recirculating system (MARS)
- Molly (drug)
- Mondini malformation
- Monoamine oxidase inhibitors (MAOIs)
- Monomorphic ventricular tachycardia
- Mononeuritis multiplex
- Monosymptomatic nocturnal enuresis
- Morgagni hernia
- Morning-after pills
- Morquio syndrome
- Mothballs, and G6PD deficiency
- Motion sickness
- Motor speech disorders
- Motor tic disorder
- Mounier-Kuhn syndrome
- Mountain sickness, acute
- Mouthwash, magic
- Muckle-Wells syndrome
- Mucociliary clearance, disorders of
- Mucocutaneous reactions
- Mucosal bleeding, in dengue
- Mucosal dryness, nosebleeds with
- Muenke syndrome
- Müllerian duct aplasia, renal aplasia, and spinal defects (MURCS)
- Multidrug-resistant tuberculosis
- Multiminicore disease
- Multiple carboxylase deficiency
- Multiple enchondromatosis, Maffucci type
- Multiple epiphyseal dysplasia
- Multiple eruptive milia (MEM)
- Multiple exostoses
- Multiple organ dysfunction syndrome (MODS)
- Munchausen syndrome
- Murine typhus
- Murphy sign
- Muscle-eye-brain (MEB) disease
- Muscular dystrophy-dystroglycanopathy with brain and eye anomalies
- MUTYH-associated polyposis syndrome
- Myasthenic crisis
- Mycobacterium abscessus
- Mycobacterium chelonae
- Mycobacterium fortuitum
- Mycobacterium intracellulare
- Mycobacterium kansasii
- Mycobacterium malmoense
- Mycobacterium marinum
- Mycobacterium ulcerans
- Mycobacterium xenopi
- Mycoplasma-induced rash and mucositis (MIRM)
- Myelocystocele
- Myelofibrosis
- Myeloschisis
- Myobacterium tuberculosis
- Myoclonic epilepsy in infancy (MEI)
- Myoclonic epilepsy with ragged red fibers
- Myoclonic seizures
- Myoclonic status epilepticus
- Myopericarditis
- Myringitis
- Myringoplasty
- Myxoma