M Macroamylasemia Macroglobulinemia of Waldenstrom Macroglossia Macrosomia Macula Macular degeneration Macule Magic markers Magnesium in diet Major depression Major depression with psychotic features Make-up, liquid Make-up, rouge Malabsorption Malaise Malaria Malathion Male-pattern baldness Malignancy Malignant hypertension (arteriolar nephrosclerosis) Malignant hyperthermia Malignant melanoma Malignant teratoma Mallory-Weiss tear Malnutrition Malocclusion of teeth Mammogram - calcifications Mammogram - recommended age Mammography Maple syrup urine disease Marfan's syndrome Margarine vs. butter Marine animal stings or bites Mastectomy Mastoidectomy Mastoiditis Mat Matches - ingestion Maternal deprivation syndrome Mathematics disorder Maxillofacial injury McArdle's syndrome (glycogen storage disease type V) McCune-Albright syndrome Meatal stenosis Meckel diverticulum Meckel's diverticulectomy Meclofenamate overdose Meconium Meconium aspiration Medial Medial collateral ligament (MCL) injury Mediastinal emphysema (pneumomediastinum) Mediastinal tumor Mediastinitis Mediastinoscopy with biopsy Medullary carcinoma of thyroid Medullary cystic disease Megaloblastic anemia Meibomianitis Melanin Melanoma Melanoma of the eye Melasma Mellaril overdose Membranoproliferative GN I Membranoproliferative GN II Membranous nephropathy Memory loss Meniere's disease Meningitis Meningitis; cryptococcal Meningitis; gram negative Meningitis; H. influenza: Meningitis; meningococcal Meningitis; pneumococcal Meningitis; staphylococcal Meningitis; tuberculous Meningocele repair Meningococcemia Meniscus tears Menkes syndrome Menopause Menstrual cramp relief Menstrual periods, abnormal Menstruation, absent Menstruation, painful Mental retardation Menthol overdose Mentholatum deep heating rub overdose Meperidine Hydrochloride overdose Meprobamate overdose Merbromin overdose Mercuric chloride Mercuric oxide Mercury Mercury pigments Merthiolate overdose Mesenteric arteriography Mesenteric artery ischemia Mesenteric venous thrombosis Mesothelioma (benign-fibrous) Mesothelioma (malignant) Metabolic acidosis Metabolic neuropathies Metabolism Metabolite Metabolize Metachromatic leukodystrophy Metal cleaner Metal polishes Metal wax Metastasis Metastatic brain tumor Metastatic cancer to the lung Metastatic pleural tumor Metatarsus adductus Methadone overdose Methanol intoxication Methanol overdose Methanol test Methapyrilene hydrochloride overdose Methemoglobinemia Methemoglobinemia; acquired Methyl alcohol Methyl salicylate overdose Methylene blue test Methylmalonic acid Methylmalonic acidemia Methylmercury poisoning Metopic ridge Metyrapone test MIBG (iodine-131-meta-iodobenzylguanidine) scintiscan Microalbuminuria test Microcephaly Micrognathia Migraine Migraine - resources Mild secondary hyperparathyroidism Mildew remover Milia Milk-alkali syndrome Millipedes Mineral oil overdose Mineral seal oil Mineral spirits Mineral supplements overdose Minimal change disease Mistletoe Mitral regurgitation; acute Mitral regurgitation; chronic Mitral stenosis Mitral valve prolapse Mittelschmerz Mixed receptive -expressive language disorder Mixed tension migraine MMR immunization (vaccine) Modeling clay Molluscum contagiosum Mongolian blue spots Mononeuritis multiplex Mononeuropathy Mononucleosis spot test Morbid obesity Morning sickness Moro reflex Morphine overdose Morquio syndrome Mosaicism Moth balls Moth repellent Motormental retardation Motrin overdose Mouth sores Mouth ulcers Mouthwash overdose Movement, dysfunctional Movement, uncontrollable Movement, uncontrolled - slow Movement, uncoordinated Movement, unpredictable - jerky MRI MSG Allergy Mucopolysaccharides Mucormycosis Mucosa Mucus cyst Multi-infarct dementia Multifocal atrial tachycardia Multiple Endocrine Neoplasia (MEN) I Multiple Endocrine Neoplasia (MEN) II Multiple lentigines syndrome Multiple myeloma Multiple Sclerosis Multiple sclerosis - resources Multiple Vitamin overdose Mumps Munchausen syndrome by proxy Murine eye drops overdose Muscle aches Muscle atrophy Muscle biopsy Muscle function loss Muscle spasms (cramps) Muscle strain treatment Muscular dystrophy Muscular dystrophy - resources Myasthenia gravis Myasthenia gravis - resources Mycobacterial culture of bone marrow Mycobacterial culture of liver biopsy Mycobacterial culture of suspected non-pulmonary site of pathology Mycoplasma pneumonia Myelin Myelomeningocele (children) Myocardial biopsy Myocardial contusion Myocarditis Myoglobin - serum Myoglobin - urine Myopathic changes Myositis Myotonia congenita Myristical oil