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THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Diagnosis and Therapy
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Ma

Machado-Joseph disease

Cerebellar Disorders: Hereditary ataxias

Machupo virus infection

Selected Viruses That Infect Humans* Tables
Arbovirus, Arenavirus, and Filovirus Diseases Tables

Macroamylasemia

Acute Pancreatitis: Laboratory tests

Macrocephaly

Brain Anomalies: Diagnosis

Macrocytosis

  • alcoholic liver disease and

  • Alcoholic Liver Disease: Diagnosis

  • nonmegaloblastic

  • Nonmegaloblastic MacrocytosisSidebars

    Macroglobulinemia

    Classification of Plasma Cell DisordersTables
    Macroglobulinemia

    Macroglossia

    Hypothyroidism: Symptoms and Signs

    Macrolides

    Usual Doses of Commonly Prescribed Antibiotics Tables
    Macrolides
    MacrolidesTables

  • cephalosporin with

  • β-Lactams: Indications

    Macrominerals

    Nutrition: General Considerations: Macrominerals
    Nutrition: General Considerations: MacromineralsTables
    Nutrition: General Considerations: MacromineralsTables
    Trace MineralsTables

  • deficiency of

  • Mineral Deficiency and Toxicity
    Trace MineralsTables

  • recommended dietary allowances for

  • Guidelines for Daily Intake of Minerals*Tables

  • toxicity of

  • Mineral Deficiency and Toxicity
    Trace MineralsTables

    Macronutrients

    Nutrition: General Considerations: Macronutrients
    Nutrition: General Considerations: MacromineralsTables

  • requirements for

  • Nutrition: General Considerations: MacromineralsTables
    Nutritional Support: Predicting Nutritional Requirements
    Estimated Adult Daily Protein Requirement Tables

    Macrophages

    Components of the Immune System: Antigen-Presenting Cells

  • in atherosclerosis

  • Atherosclerosis: Pathophysiology

  • in cancer

  • Host Response to Tumors: Cellular Immunity

  • defects in

  • Immunodeficiency Disorders: Primary immunodeficiencies

  • in rheumatoid arthritis

  • Rheumatoid Arthritis (RA): Pathophysiology

  • in silicosis

  • Silicosis: Pathophysiology

    Macular degeneration

  • age-related

  • Approach to the Ophthalmologic Patient: Ophthalmoscopy
    Age-Related Macular Degeneration (ARMD)

    Macule

    Description of Skin Lesions: Primary Morphology

    Maculopapular rash

    Description of Skin Lesions: Primary Morphology

    Mad cow disease

    Prion Diseases: Creutzfeldt-Jakob Disease (CJD)

  • blood transfusion and

  • Complications of Transfusion: Infectious complications

    Maddox rod testing

    Diplopia

    Madura foot

    Mycetoma

    Maduromycosis

    Mycetoma

    Mafenide acetate

    Sulfonamides: Indications

    Magnesium

    Disorders of Magnesium Concentration

  • blood levels of

  • Disorders of Magnesium Concentration: Symptoms, Signs, and Diagnosis
    Disorders of Magnesium Concentration: Symptoms, Signs, and Diagnosis

  • deficiency of

  • Signs and Symptoms of Nutritional DeficiencyTables
    Disorders of Calcium Concentration: Other causes
    Disorders of Calcium Concentration: Treatment
    Disorders of Magnesium Concentration: Hypomagnesemia
    Causes of HypomagnesemiaTables

  • diarrhea and

  • Diarrhea: Complications

  • malabsorption and

  • Symptoms of MalabsorptionTables

  • metabolic alkalosis and

  • Causes of Metabolic AlkalosisTables

  • pancreatitis and

  • Acute Pancreatitis: Treatment

  • protein-energy undernutrition treatment and

  • Protein-Energy Undernutrition: Complications of treatment

  • dietary

  • Nutrition: General Considerations: MacromineralsTables
    Disorders of Magnesium Concentration

  • excess of

  • Disorders of Magnesium Concentration: Hypermagnesemia

  • recommended dietary allowance for

  • Nutrition: General Considerations: MacromineralsTables

  • in torsades de pointes

  • Ventricular Tachycardia (VT): Treatment

    Magnesium ammonium phosphate crystals

    Approach to the Renal Patient: Microscopic analysis
    Urinary Calculi: Etiology

    Magnesium chloride

    Disorders of Magnesium Concentration: Treatment

    Magnesium citrate

    Agents Used to Treat ConstipationTables

    Magnesium gluconate

    Disorders of Magnesium Concentration: Treatment

    Magnesium hydroxide

    Drug Treatment of Gastric Acidity: Antacids

    Magnesium sulfate

  • in asthma

  • Asthma: Treatment of acute exacerbation

  • in cardiopulmonary resuscitation

  • Drugs for Resuscitation* Tables
    Cardiac Arrest: Other drugs

  • in constipation

  • Agents Used to Treat ConstipationTables

  • in hypomagnesemia

  • Disorders of Magnesium Concentration: Treatment

  • in neonatal seizures

  • Neonatal Seizure Disorders: Treatment

  • in preeclampsia

  • Preeclampsia and Eclampsia: Treatment

  • in preterm labor

  • Preterm Labor: Treatment

  • in tetanus

  • Tetanus: Management of muscle spasm

    Magnetic resonance angiography

    Imaging Tests: MRI
    Magnetic Resonance Imaging: Uses

  • in cardiovascular disorders

  • Imaging Tests: MRI

  • in neurologic disorders

  • Neurologic Diagnostic Procedures: MRI

  • in renal disorders

  • Imaging Tests: MRI

    Magnetic resonance cholangiopancreatography

  • in bile duct stones

  • Choledocholithiasis and Cholangitis: Diagnosis

  • in biliary tract disease

  • Imaging Tests: MRI

  • in cholestasis

  • Jaundice: Testing

  • in pancreatic cancer

  • Pancreatic Cancer: Diagnosis

    Magnetic resonance imaging

    Magnetic Resonance Imaging

  • in cardiovascular disorders

  • Imaging Tests: MRI

  • contraindications to

  • Magnetic Resonance Imaging: Magnetic field

  • in genitourinary disorders

  • Imaging Tests: MRI

  • in liver disease

  • Imaging Tests: MRI

  • in musculoskeletal evaluation

  • Approach to the Patient With Joint Disease: Imaging studies
    Fractures, Dislocations, and Sprains: Imaging

  • in neurologic disorders

  • Neurologic Diagnostic Procedures: MRI

  • pacemaker interaction with

  • Arrhythmias and Conduction Disorders: Pacemakers

  • in pulmonary disease

  • Chest Imaging: Magnetic resonance imaging

  • spinal cord

  • Ischemic Stroke: Diagnosis and Treatment
    Spinal Cord Disorders: Diagnosis

    Magnetic resonance spectroscopy

    Magnetic Resonance Imaging: Magnetic resonance spectroscopy (MRS)

    Magnet therapy

    Types of Complementary and Alternative Medicine Tables
    Energy Therapies

    Mainzer-Saldino syndrome

    Nephronophthisis and Medullary Cystic Kidney Disease Complex: Nephronophthisis

    Major basic protein

    Eosinophilic Disorders

    Major histocompatibility complex (MHC)

    see also Human leukocyte antigens (HLA system)
    Human Leukocyte Antigen (HLA) System

  • deficiencies of

  • Primary Immunodeficiency Disorders Tables

    Malabsorption syndromes

    Malabsorption Syndromes
    Causes of MalabsorptionTables
    Small-Bowel Mucosal Histology in Certain Malabsorptive DisordersTables
    Suggested evaluation for malabsorption.Figures

  • copper deficiency and

  • Copper: Acquired Copper Deficiency

  • diarrhea and

  • Diarrhea: Reduced contact time/surface area

  • H2 production and

  • Gas-Related Complaints: Excessive flatus

  • infection and

  • Infection and Infestation

  • inflammatory bowel disease and

  • Inflammatory Bowel Disease (IBD): Extraintestinal Manifestations

  • protein-energy undernutrition and

  • Protein-Energy Undernutrition: Secondary PEU

  • undernutrition and

  • Undernutrition: Disorders and medical procedures

  • vitamin and mineral deficiencies and

  • Vitamin A: Etiology
    Vitamin B12: Etiology and Pathophysiology
    Causes of Vitamin B12 DeficiencyTables
    Malabsorption Syndromes: Symptoms and Signs
    Symptoms of MalabsorptionTables

    Malaria

    Community-Acquired Pneumonia: Etiology
    Collecting and Handling Specimens for Microscopic Diagnosis of Parasitic Infections Tables
    Serologic and Molecular Tests for Parasitic InfectionsTables
    Malaria
    Diagnostic Features of Plasmodium Species in Blood FilmsTables
    Treatment of Malaria Tables
    Adverse Reactions and Contraindications of Antimalarial DrugsTables

  • atypical

  • Malaria: Symptoms and Signs

  • fever in

  • Fever of Unknown Origin (FUO): History
    Malaria: Symptoms and Signs

  • hepatic inflammation in

  • Selected Diseases or Organisms Associated With Liver InflammationTables

  • in neonate

  • Perinatal Anemia: Hemolysis

  • pregnancy and

  • Malaria: Chemoprophylaxis

  • prevention of

  • Approach to Parasitic Infections: Prevention
    Prevention of MalariaTables
    Malaria: Prevention
    Malaria: Chemoprophylaxis

  • transfusion-transmitted

  • Complications of Transfusion: Infectious complications

    Malassezia furfur infection

    Tinea Versicolor
    Miscellaneous Opportunistic Fungi

    Malathion

    Principles of Topical Dermatologic Therapy: Antimicrobials

  • in lice infestation

  • Treatment Options for Scabies and LiceTables

  • poisoning with

  • Symptoms and Treatment of Specific Poisons Tables

    Malaya, urban typhus of

    Diseases Caused by Rickettsia, Ehrlichia, and Coxiella Sp Tables
    Murine (Endemic) Typhus

    Malignancy

    see Cancer, and specific sites and types of cancer

    Malignant hyperthermia

    Pharmacogenetics: Malignant hyperthermia
    Heatstroke
    Heatstroke: Prognosis and Treatment

    Malignant otitis externa

    Malignant External Otitis
    Pseudomonas and Related Infections: Skin and soft-tissue infections

    Malingering

    Somatoform and Factitious Disorders
    Approach to the Neurologic Patient: Mental status
    Approach to the Neurologic Patient: Cranial nerves

  • chronic pain vs

  • Chronic Pain

  • fugue vs

  • Dissociative Fugue: Etiology

    Mallet finger

    Deformities: Mallet Finger
    Mallet finger.Figures

    Mallory bodies

    Liver Damage Caused by Drugs: Chronic Liver Disease
    Alcoholic Liver Disease: Pathology

    Mallory-Weiss syndrome

    GI Bleeding: Interpretation of findings
    Mallory-Weiss Syndrome

    Malnutrition

    see also Undernutrition

  • blindness (toxic amblyopia) and

  • Toxic Amblyopia

  • keratomalacia and

  • Keratomalacia

    Malocclusion

    Malocclusion

    Malodor

  • cutaneous

  • Bromhidrosis

  • inborn errors of metabolism and

  • Approach to the Patient With a Suspected Inherited Disorder of Metabolism: History and physical examination

  • oral

  • Halitosis

    Malpractice

    Medical Malpractice

    Malta fever

    Brucellosis

    MALT lymphoma

    Helicobacter pylori Infection: Pathophysiology
    Gastritis: Mucosa-associated lymphoid tissue (MALT) lymphoma
    Non-Hodgkin Lymphomas: Classification

    Malt worker's lung

    Examples of Hypersensitivity PneumonitisTables

    Mammary souffle

    Approach to the Cardiac Patient: Continuous murmurs

    Mammography

    Screening Procedures in Average-Risk Asymptomatic People As Recommended by the American Cancer Society*Tables
    Breast Disorders: Testing
    Nipple Discharge: Evaluation and Treatment
    Breast Cancer: Screening

    Mandible

    see also Jaw
    see also Maxilla
    see also Temporomandibular joint

  • agenesis of

  • Craniofacial Abnormalities: Agenesis of the jaw

  • birth-related asymmetry of

  • Birth Injuries: Cranial Nerve Injury

  • dislocation of

  • Mandibular Dislocation
    Mandibular reduction.Figures

  • fracture of

  • Fractures of the Jaw and Contiguous Structures

  • hyperplasia of

  • Condylar Hyperplasia

  • hypoplasia of

  • Condylar Hypoplasia

  • innervation of

  • Approach to the Dental Patient: Supporting tissues

  • osteonecrosis of

  • Osteonecrosis of the JawSidebars

  • osteoradionecrosis of

  • Tumors of the Head and Neck: Adverse effects of treatment
    Approach to the Dental Patient: Radiation Therapy

  • reduction of

  • Mandibular Dislocation
    Mandibular reduction.Figures

  • small

  • Common Craniofacial SyndromesTables
    Craniofacial Abnormalities: Deformities characterized by a small mandible

  • tumors of

  • Jaw Tumors

    Mandibulomaxillary advancement

    Obstructive Sleep Apnea: Airway surgery

    Manganese

    Trace MineralsTables
    Guidelines for Daily Intake of Minerals*Tables
    Manganese

    Mange

    Mite Bites

    Mania

    see also Bipolar disorders
    Bipolar Disorders
    Examples of Disorders Associated With Defects in Neurotransmission Tables

  • in adolescents

  • Depressive Disorders: Bipolar Disorder
    Selected Drugs for Bipolar DisorderTables

  • dysphoric

  • Bipolar Disorders: Mixed state

  • etiology of

  • Some Causes of Symptoms of Depression and ManiaTables
    Bipolar Disorders: Etiology

  • physical disorders and

  • Some Causes of Symptoms of Depression and ManiaTables
    Bipolar Disorders: Etiology

  • psychosis and

  • Schizoaffective Disorder

    Manic-depressive disorder

    see also Bipolar disorders
    Bipolar Disorders

    Manipulation

    Types of Complementary and Alternative Medicine Tables
    Manipulative and Body-Based Methods

    Mannitol

  • in brain injury

  • Traumatic Brain Injury (TBI): Increased intracranial pressure

  • diarrhea with

  • Dietary Factors That May Worsen DiarrheaTables

  • in glaucoma

  • Drugs Used to Treat Glaucoma Tables

  • intracranial pressure and

  • Coma and Impaired Consciousness: ICP control

  • irritable bowel syndrome and

  • Irritable Bowel Syndrome (IBS): Diet

    Mannose-binding lectin

    Components of the Immune System: Acute Phase Reactants

  • deficiency of

  • Primary Immunodeficiency Disorders Tables

    Mannose-binding lectin-associated serine protease-2 deficiency

    Primary Immunodeficiency Disorders Tables

    Manometry

    Manometry

  • in achalasia

  • Motility Disorders: Diagnosis

  • in esophageal spasm

  • Motility Disorders: Diagnosis

    Mansonella ozzardi infection

    Collecting and Handling Specimens for Microscopic Diagnosis of Parasitic Infections Tables

    Mantle cell lymphoma

    Non-Hodgkin Lymphomas: Classification

    Mantoux test

    Tuberculosis (TB): Skin testing
    Tuberculosis (TB): Screening and Prevention

    Maple syrup urine disease

    Amino Acid and Organic Acid Metabolism Disorders: Maple syrup urine disease

    Maprotiline

    Depressive Disorders: Heterocyclic antidepressants
    Antidepressants Tables

    Marantic endocarditis

    Noninfective Endocarditis: Marantic endocarditis

    Marasmus

    Protein-Energy Undernutrition
    Protein-Energy Undernutrition: Primary PEU
    Protein-Energy Undernutrition: Symptoms and Signs

    Marble bones

    Osteopetroses

    Marburg virus infection

    Selected Viruses That Infect Humans* Tables
    Arbovirus, Arenavirus, and Filovirus Diseases Tables
    Marburg and Ebola Virus Infections

  • terrorist use of

  • Biological Warfare and Terrorism