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THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Medical Information--Home Edition
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Pa

Pacemaker

  • artificial

  • Abnormal Heart Rhythms: Pacemakers
    Keeping the Beat: Artificial PacemakersFigures
    Heart Block: Treatment

  • travel and

  • Specific Medical Conditions and Travel: Heart Disease

  • escape

  • Pacemaker Dysfunction

  • natural

  • Heart: Regulation of the Heart
    Abnormal Heart Rhythms

  • dysfunction of

  • Pacemaker Dysfunction

    Pachymetry

    Diagnosis: Pachymetry
    Bullous Keratopathy

    Paclitaxel

    Chemotherapy DrugsTables

    Paget's disease

  • information resources on

  • Pa - Ps

  • of nipple

  • Cancer: Types
    Cancer: Diagnosis
    Cancer: Treatment of Specific Types of Breast Cancer

  • of penis

  • Growths on the Penis

  • of skin

  • Paget's Disease

    Pain

    Pain
    What Is Referred Pain?Figures
    Opioid AnalgesicsTables
    How Nonsteroidal Anti-Inflammatory Drugs WorkSidebar

  • abdominal

  • see also Abdomen, pain in
    Symptoms: Abdominal Pain
    Abdominal Pain in Newborns, Infants, and Young ChildrenTables
    Causes of Abdominal Pain by LocationFigures
    Diagnosis: Medical History and Physical Examination

  • aging and

  • Spotlight on AgingSidebar

  • in ankylosing spondylitis

  • Other Types of Inflammatory Arthritis: Symptoms

  • in aortic dissection

  • Aortic Dissection: Symptoms

  • in appendicitis

  • Appendicitis: Symptoms and Diagnosis

  • arm

  • Symptoms: Pain in the Limbs

  • arm, in thoracic outlet syndrome

  • Thoracic Outlet Syndromes

  • in atherosclerosis

  • Atherosclerosis: Symptoms

  • back

  • see Back pain
    Low Back Pain
    A Herniated DiskFigures

  • bone

  • Symptoms: Causes

  • breakthrough

  • Pain: Acute Versus Chronic Pain

  • breast

  • Breast Disorders: Breast Pain

  • in cancer

  • Symptoms: Pain

  • chest

  • see Chest, pain in

  • in chondromalacia patellae

  • Chondromalacia Patellae

  • in dying person

  • Symptoms During a Fatal Illness: Pain

  • ear

  • When the Ear AchesSidebar

  • in erythromelalgia

  • Functional Peripheral Arterial Disease: Erythromelalgia

  • evaluation of

  • Evaluation

  • eye

  • Symptoms: Eye Pain

  • face

  • in Bell's palsy

  • Bell's Palsy

  • in trigeminal neuralgia

  • Trigeminal Neuralgia
    Taking the Pressure Off a NerveFigures

  • in fibromyalgia

  • Fibromyalgia: Symptoms

  • gallbladder

  • Gallbladder and Biliary Tract
    Cholecystitis: Symptoms

  • in headache

  • Headaches
    How Headaches Differ Tables
    Drugs Used to Treat MigrainesTables

  • in heart disease

  • Symptoms: Chest Pain

  • heel

  • Plantar Fasciosis
    What Is a Heel Spur?Figures

  • hip

  • in fracture

  • Hip: Symptoms and Diagnosis

  • in slipped capital femoral epiphysis

  • Slipped Capital Femoral Epiphysis (SCFE)

  • information resources on

  • Pa - Ps

  • joint

  • Symptoms: Causes

  • in rheumatic fever

  • Rheumatic Fever: Joints

  • in rubella

  • Rubella: Symptoms and Diagnosis

  • in kidney disorders

  • Symptoms: Flank pain
    Hydronephrosis: Symptoms
    Stones in the Urinary Tract: Symptoms

  • during labor and delivery

  • Labor: Pain Relief

  • leg

  • Symptoms: Pain in the Limbs

  • in thromboangiitis obliterans

  • Occlusive Peripheral Arterial Disease: Symptoms

  • when walking

  • Occlusive Peripheral Arterial Disease: Arteries of the Legs and Arms
    Occlusive Peripheral Arterial Disease: Arteries of the Legs and Arms

  • limb

  • Symptoms: Pain in the Limbs

  • muscle

  • Symptoms: Causes

  • neck

  • Neck Pain
    Disorders That Cause Only Neck PainTables

  • nerve

  • see Neuralgia

  • neuropathic

  • Types: Neuropathic Pain

  • nociceptive

  • Types: Nociceptive Pain

  • at ovulation (mittleschmerz)

  • Menstrual Cycle: Ovulatory Phase

  • pelvic

  • Symptoms: Pelvic Pain
    What Causes Pelvic Pain?Sidebar

  • in endometriosis

  • Endometriosis: Symptoms

  • during menstrual period

  • Dysmenorrhea

  • in pelvic congestion syndrome

  • What Is Pelvic Congestion Syndrome?Sidebar

  • in pericarditis

  • Symptoms: Causes

  • phantom limb

  • Specific Problems: Pain
    Types: Phantom Limb Pain
    Pain

  • pleuritic

  • Symptoms: Causes
    Pleural Effusion: Symptoms
    Viral Pleuritis

  • postherpetic

  • What Is Postherpetic Neuralgia?Sidebar

  • postoperative

  • Surgery: After Surgery

  • psychogenic

  • Types: Psychogenic Pain

  • referred

  • What Is Referred Pain?Figures
    Pain: Pain Pathways
    Low Back Pain: Referred Pain
    Neck Pain: Causes

  • sciatic

  • What Is Sciatica?Figures

  • during sexual intercourse

  • Dyspareunia

  • in shingles

  • Types: Postherpetic Neuralgia

  • shoulder, in thoracic outlet syndrome

  • Thoracic Outlet Syndromes

  • in thoracic aortic aneurysm

  • Aneurysms: Symptoms

  • throat, in glossopharyngeal neuralgia

  • Glossopharyngeal Neuralgia

  • tooth

  • Tooth Disorders: Symptoms of Tooth Disorders
    Cavities: Symptoms
    Pulpitis: Symptoms and Diagnosis
    Toothaches

  • treatment of

  • Treatment of Pain and Inflammation
    Treatment

  • heat therapy and

  • Treatment of Pain and Inflammation: Heat Therapy
    Types of Heat TherapyTables

  • massage and

  • Treatment of Pain and Inflammation: Massage
    Some Uses for Massage Tables

  • nondrug

  • Treatment: Nondrug Pain Treatments

  • nonopioid

  • Treatment: Nonopioid Analgesics
    How Nonsteroidal Anti-Inflammatory Drugs WorkSidebar

  • opioid

  • Treatment: Opioid Analgesics
    Opioid AnalgesicsTables

  • during urination

  • Symptoms: Burning or Pain with Urination
    Common Causes of DysuriaTables
    Bladder Infection (Cystitis): Symptoms

  • vulvar

  • Vulvodynia

    Pain referred

    Low Back Pain: Causes

    Pain relievers

    see Analgesics

    Paint thinner, poisoning from

    Hydrocarbon Poisoning

    Palate

    Biology of the Mouth
    A View of the MouthFigures

  • cleft

  • Bone and Muscle Defects: Facial Defects
    Cleft Lip and Cleft Palate: Defects of the FaceFigures

  • information resources on

  • Ca - Cy

  • necrotizing sialometaplasia of

  • Mouth Sores: Other causes

  • torus of

  • Noncancerous Growths

    Palivizumab

    Respiratory Tract Infections: Prevention and Treatment

    Palliative care

    Medical Terms Related to Life-Sustaining TreatmentSidebar

    Palpitations

    see also Arrhythmias
    Symptoms: Palpitations
    Abnormal Heart Rhythms: Symptoms

  • in mitral regurgitation

  • Mitral Regurgitation: Symptoms

    Palsy

  • abducens nerve

  • Palsies of Cranial Nerves That Control Eye Movement: Sixth Cranial Nerve (Abducens Nerve) Palsy

  • Bell's (facial nerve)

  • Bell's Palsy

  • bulbar

  • Muscle Stimulation Disorders: Progressive Bulbar Palsy

  • cerebral

  • Cerebral Palsy (CP)

  • information resources on

  • Ca - Cy

  • conjugate gaze

  • Conjugate Gaze Palsies

  • cranial nerve

  • Palsies of Cranial Nerves That Control Eye Movement

  • oculomotor nerve

  • Palsies of Cranial Nerves That Control Eye Movement: Third Cranial Nerve (Oculomotor Nerve) Palsy

  • peroneal nerve

  • Mononeuropathy: Peroneal Nerve Palsy

  • pseudobulbar

  • Muscle Stimulation Disorders: Primary Lateral Sclerosis and Progressive Pseudobulbar Palsy

  • radial nerve

  • Mononeuropathy: Radial Nerve Palsy

  • supranuclear

  • Progressive Supranuclear Palsy

  • trochlear

  • Palsies of Cranial Nerves That Control Eye Movement: Fourth Cranial Nerve (Trochlear Nerve) Palsy

  • ulnar nerve

  • Mononeuropathy: Ulnar Nerve Palsy

    Pamidronate

  • in multiple myeloma

  • Multiple Myeloma: Treatment and Prognosis

  • in osteogenesis imperfecta

  • Osteogenesis Imperfecta: Treatment

  • in Paget's disease of bone

  • Paget's Disease of Bone: Treatment

    Pancoast syndrome

    Cancer of the Lungs: Complications

    Pancreas

    Digestive SystemFigures
    Pancreas
    Pancreatitis
    Locating the PancreasFigures
    View of the Liver and GallbladderFigures
    Major Endocrine GlandsFigures
    Major Hormones Tables

  • abscess of

  • Abdominal Abscesses: Causes and Symptoms

  • age-associated changes in

  • Effects of Aging: Pancreas, Liver, and Gallbladder

  • cancer of

  • Pancreatic Cancer
    Rare Types of Pancreatic CancerSidebar

  • in multiple endocrine neoplasia

  • Multiple Endocrine Neoplasia Syndromes: Type 1 Disease

  • function tests of

  • Malabsorption: Diagnosis

  • gastrinoma of

  • Pancreatic Endocrine Tumors: Gastrinoma

  • glucagonoma of

  • Pancreatic Endocrine Tumors: Glucagonoma

  • infection of

  • Acute Pancreatitis: Complications

  • inflammation of

  • see Pancreatitis

  • insulinoma of

  • Pancreatic Endocrine Tumors: Insulinoma
    Hypoglycemia: Symptoms
    Hypoglycemia: Cause

  • pseudocyst of

  • Acute Pancreatitis: Complications
    Chronic Pancreatitis: Treatment

  • transplantation of

  • Diabetes Mellitus (DM): Experimental Treatments
    Pancreas Transplantation

  • tumors of

  • Pancreatic Endocrine Tumors
    Hypoglycemia: Symptoms
    Hypoglycemia: Cause

  • vipoma of

  • Pancreatic Endocrine Tumors: Vipoma

    Pancreatic duct

    Digestive SystemFigures
    Gallbladder and Biliary Tract
    View of the Liver and GallbladderFigures

  • obstruction of

  • Gallstones: Symptoms

  • in pancreatitis

  • Chronic Pancreatitis
    Chronic Pancreatitis: Treatment

  • tumor of

  • Rare Types of Pancreatic CancerSidebar

    Pancreatitis

    Pancreatitis

  • acute

  • Acute Pancreatitis
    Some Causes of Acute PancreatitisSidebar

  • chronic

  • Chronic Pancreatitis

  • with endoscopic retrograde cholangiopancreatography

  • Imaging Tests

  • in hyperlipoproteinemia

  • Hyperlipoproteinemia: Symptoms
    Hypolipoproteinemia

  • in mumps

  • Mumps: Symptoms and Diagnosis

  • necrotizing

  • Acute Pancreatitis: Complications

    Panencephalitis, subacute sclerosing

    Measles: Prognosis
    Subacute Sclerosing Panencephalitis (SSPE)

    Panic attacks and panic disorder

    Panic Attacks and Panic Disorder
    What Is Exposure Therapy?Sidebar

    Pantoprazole

    Drugs Used to Treat Peptic DisordersTables

    Pantothenic acid

    VitaminsTables

    Papilledema

    Papilledema

    Papillitis, headache with

    How Headaches Differ Tables

    Papilloma, laryngeal

    Laryngeal Papillomas

    Pap test

    Selected Screening Schedule for AdultsTables
    Diagnosis: Screening
    Collecting Cervical CellsFigures
    Gynecologic Evaluation: Screening for Cervical Cancer
    Cervical Cancer: Symptoms and Diagnosis
    Diagnostic Procedures Tables

  • recommendations for

  • Cancer Screening Recommendations Tables

    Papule

    Medical Names for Marks and Growths on the SkinSidebar

    Paracentesis

    Diagnosis: Paracentesis
    Ascites: Symptoms and Diagnosis
    Diagnostic Procedures Tables

  • anterior chamber

  • Blockage of Central Retinal Arteries and Veins: Diagnosis and Treatment

    Paracetamol

    see Acetaminophen

    Paracoccidioidomycosis

    Paracoccidioidomycosis

    Parade ground syncope (fainting)

    Symptoms: Causes

    Paraffin bath

    Types of Heat TherapyTables

    Parainfectious (acute disseminated) encephalomyelitis

    Other Primary Demyelinating Diseases
    Other Primary Demyelinating Diseases: Acute Disseminated Encephalomyelitis

    Parainfectious (postinfectious) encephalitis

    Viral Infections

    Parainfluenza virus infection

    Respiratory Tract Infections
    Bronchiolitis

    Paralysis

  • in botulism

  • Neuromuscular Junction Disorders: Symptoms

  • in decompression sickness

  • Decompression Sickness: Symptoms

  • of diaphragm, in newborn

  • Birth Injury: Nerve Injury

  • facial

  • Bell's Palsy

  • infantile

  • Polio

  • in lightning injury

  • Lightning Injuries: Symptoms

  • in locked-in state

  • Variations in Impaired ConsciousnessSidebar

  • periodic

  • Periodic Paralysis

  • in rabies

  • Viral Infections: Symptoms

  • sleep

  • Narcolepsy: Symptoms

  • spastic

  • Spinal Cord Disorders: Symptoms

  • in spinal cord injury

  • Where Is the Spinal Cord Damaged?Figures
    Spinal Cord Disorders: Treatment

  • in stroke

  • Stroke (CVA): Symptoms

  • tick

  • Tick ParalysisSidebar

  • Todd's

  • Seizure Disorders: Symptoms

  • vocal cord

  • Vocal Cord ProblemsFigures
    Vocal Cord Paralysis

    Paralytic ileus

    Ileus

    Paralytic illness

    Enteroviral Infections: Common in ChildhoodSidebar

    Paralytic strabismus

    Strabismus: Paralytic Strabismus

    Paranasal sinuses

    Locating the SinusesFigures

  • anatomy of

  • Nose and Sinuses
    A Look Inside the Nose and ThroatFigures

  • cancer of

  • Paranasal Sinus Cancer

  • disorders of

  • see also Sinusitis
    Polyp Formation in the NoseFigures
    Sinusitis
    Fungal Sinus InfectionsSidebar

  • pressure trauma to

  • Problems in Transit: Ear and Sinus Pressure

    Paraneoplastic syndromes

    Cancer of the Lungs: Complications
    Calcium: Hypercalcemia
    What Are Paraneoplastic Syndromes?Sidebar

    Paranoia

  • in personality disorder

  • Personality Disorders: Paranoid Personality

  • in schizophrenia

  • Schizophrenia: Types of Schizophrenia

    Paraparesis, spastic

  • hereditary

  • Hereditary Spastic Paraparesis

  • tropical

  • Viral Infections: Tropical Spastic Paraparesis
    Tropical Spastic Paraparesis/HTLV-1–Associated Myelopathy

    Paraphilias

    Paraphilias

    Paraphimosis

    Inflammation of the Penis

    Paraplegia

    see Spinal cord, injury to

    Parasite infections

  • gastrointestinal

  • Microorganisms That Cause GastroenteritisTables

    Parasitic infection

    see also specific infections
    Types of Infectious OrganismsSidebar
    Parasitic Infections
    Other ParasitesTables
    Life Cycle of the HookwormFigures
    A Beef TapewormFigures

  • brain

  • Parasitic Infections

  • cancer and

  • Risk Factors: Inflammatory Diseases

  • skin

  • Parasitic Skin Infections
    A Close-up Look at LiceFigures

  • urinary tract

  • Urinary Tract Infections (UTI): Parasites

    Parasomnias

    Parasomnias

    Parathyroid glands

    Major Endocrine GlandsFigures
    Major Hormones Tables

  • absence of

  • DiGeorge Anomaly

  • in polyglandular deficiency syndrome

  • Polyglandular Deficiency SyndromesSidebar

  • tumors of

  • Multiple Endocrine Neoplasia Syndromes: Type 1 Disease

    Parathyroid hormone