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

Pia mater

Viewing the BrainFigures
Brain: Meninges
How the Spine Is OrganizedFigures

Pica

Iron: Symptoms
Physical Changes: Digestive Tract

Pick's disease

Dementia: Other Dementias

Pickwickian syndrome (obesity-hypoventilation syndrome)

Sleep Apnea: Symptoms

PID (pelvic inflammatory disease)

Pelvic Inflammatory Disease (PID)

Pierre Robin syndrome

Bone and Muscle Defects: Facial Defects

Pigeon breeder's lung

What Causes Hypersensitivity Pneumonitis? Tables

Pigment, of skin

Pigment Disorders

Pill

  • in esophagus

  • Injury: Erosive Esophagitis

  • the

  • see Oral contraceptives

    Pilocarpine

    Drugs Used to Treat GlaucomaTables

    Pilonidal disease

    Pilonidal Disease

    Pimples

  • in acne

  • Acne
    Comparing Mild Acne and Severe AcneFigures

  • in newborn

  • Common Birthmarks and Minor Skin Conditions in the NewbornSidebar

  • in rosacea

  • Rosacea

  • in seborrheic dermatitis

  • Dermatitis: Symptoms

    Pinealoma

    Tumors That Originate in or Near the Brain Tables
    Common Symptoms of Some Brain TumorsSidebar

    Pinguecula

    Noncancerous Growths

  • in Gaucher's disease

  • Lipid Metabolism: Gaucher's Disease

    Pinkeye

    see also Conjunctivitis
    What Is Pinkeye?Sidebar

    Pinna (external ear)

    A Look Inside the EarFigures
    Ears: Outer Ear

  • disorders of

  • Outer Ear Disorders
    Irrigating the Ear CanalFigures

    Pins-and-needles

    When the Foot's AsleepSidebar

    Pinta

    Bejel, Yaws, and Pinta

    Pinworm infection

    Pinworm Infection

    Pioglitazone

    Oral Antihyperglycemic DrugsTables

    Piperacillin

    AntibioticsTables

    Pitcher's shoulder

    Rotator Cuff Tendinitis
    Strengthening the ShouldersSidebar

    Pituitary gland

    Major Endocrine GlandsFigures
    Major Hormones Tables
    Pituitary Gland Disorders
    Pituitary: The Master GlandFigures

  • adenoma of

  • Pituitary Gland Disorders
    Hypopituitarism: Treatment

  • acromegaly with

  • Acromegaly and Gigantism

  • dysfunction of

  • Pituitary Gland Disorders

  • in diabetes insipidus

  • Central Diabetes Insipidus: Causes

  • in hyperthyroidism

  • Hyperthyroidism: Causes

  • in empty sella syndrome

  • Empty Sella Syndrome

  • enlargement of

  • Enlargement of the Pituitary Gland

  • in growth

  • Short Stature

  • in hormone control

  • Endocrine Controls

  • imaging of

  • Pituitary Gland Disorders
    Hypopituitarism: Diagnosis

  • in puberty

  • Puberty

  • sarcoidosis of

  • Sarcoidosis: Symptoms

  • tumors of

  • Tumors That Originate in or Near the Brain Tables
    Brain Tumors: Symptoms
    Common Symptoms of Some Brain TumorsSidebar
    Pituitary Gland Disorders
    Hypopituitarism: Treatment

  • acromegaly with

  • Acromegaly and Gigantism

  • Cushing's syndrome with

  • Cushing's Syndrome

  • galactorrhea with

  • Galactorrhea

  • in multiple endocrine neoplasia

  • Multiple Endocrine Neoplasia Syndromes: Type 1 Disease

  • in Nelson's syndrome

  • What Is Nelson's Syndrome?Sidebar

  • underactive (hypopituitarism)

  • Hypopituitarism
    What Causes an Underactive Pituitary?Sidebar

    Pit viper bite

    Snake Bites

    Pityriasis rosea

    Pityriasis Rosea

    Pityriasis versicolor

    Tinea Versicolor

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