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Published on 02/06/2015 by admin

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Last modified 02/06/2015

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I

Id Reaction

• Atopic dermatitis
• Contact dermatitis
• Drug eruptions
• Dyshidrotic eczema
• Folliculitis
• Scabies
• Dermatophytic infection
• Viral exanthems

Idiopathic Intracranial Hypertension

• The symptoms and signs of IIH are essentially those of raised intracranial pressure (ICP), and the differential diagnosis includes any condition that may be associated with raised ICP. Here we consider only those disease processes in which elevated ICP occurs in the context of normal CSF analysis and normal MRI. (Of note, venous sinus thrombosis [VST] is on this list despite associated MRI findings. VST should be excluded in all individuals with suspected IIH.)
• Medications: vitamin A and retinoids, steroids (both use and withdrawal), oral contraceptives
• Autoimmune disorders: systemic lupus erythematosus, Behçet’s disease
• Vascular disease: venous sinus thrombosis
• Other conditions: hypertension, CHF, pregnancy, obesity, uremia, obstructive sleep apnea

Idiopathic Pulmonary Fibrosis

• Sarcoidosis and connective tissue disease
• Other idiopathic interstitial pneumonias: desquamative interstitial pneumonia, interstitial lung disease, acute interstitial pneumonia, nonspecific interstitial pneumonia, cryptogenic organizing pneumonia, bronchiolitis obliterans organizing pneumonia
• Occupational exposures (e.g., asbestos, silica)

IgA Nephropathy

• Henoch-Schönlein purpura
• Hereditary nephritis
• Thin glomerular basement membrane disease
• Lupus nephritis
• Poststreptococcal nephritis
• Secondary causes associated with IgA nephropathy

Iliac Fossa Pain, Left Sided39

GASTROINTESTINAL CAUSES OF ACUTE LEFT ILIAC FOSSA PAIN

• Nonspecific left iliac fossa pain including constipation
• Acute gastroenteritis
• Acute diverticulitis
• Colonic carcinoma
• Colonic ischemia
• Localized small bowel perforation

Iliac Fossa Pain, Right Sided39

Differential diagnosis of right iliac fossa pain:

GASTROINTESTINAL CAUSES

• Nonspecific right iliac fossa pain
• Acute appendicitis
• Mesenteric adenitis
• Terminal ileitis
• Acute inflammation of Meckel’s diverticulum
• Crohn’s disease of the terminal ileum
• Cecal carcinoma
• Inflammatory cecal lesion (e.g., diverticulitis in a solitary cecal diverticulum)
• Inflammatory lesion of the terminal ileum (e.g., foreign body perforation)

NONGASTROINTESTINAL CAUSES

• Ruptured ovarian follicle (mittelschmerz)
• Acute salpingitis (pelvic inflammatory disease)
• Rupture/torsion or hemorrhage of an ovarian cyst
• Endometriosis
• Ectopic pregnancy
• Urinary tract infection

Immune Thrombocytopenic Purpura

• Falsely low platelet count (resulting from ethylenediaminetetraacetic acid [EDTA]–dependent or cold-dependent agglutinins)
• Viral infections (e.g., HIV infection, mononucleosis, rubella)
• Drug induced (e.g., heparin, quinidine, sulfonamides)
• Hypersplenism resulting from liver disease
• Myelodysplastic and lymphoproliferative disorders
• Pregnancy, hypothyroidism
• Systemic lupus erythematosus (SLE), thrombotic thrombocytopenic purpura (TTP), hemolytic-uremic syndrome (HUS)
• Congenital thrombocytopenias (e.g., Fanconi’s syndrome, May-Hegglin anomaly, Bernard-Soulier syndrome)

Impetigo

• Acute allergic contact dermatitis
• Herpes simplex infection
• Ecthyma
• Folliculitis
• Eczema
• Insect bites
• Scabies
• Tinea corporis
• Pemphigus vulgaris and bullous pemphigoid
• Chickenpox

Impotence28

• Psychogenic
• Endocrine: hyperprolactinemia, diabetes mellitus (DM), Cushing’s syndrome, hypothyroidism or hyperthyroidism, abnormality of hypothalamic-pituitary-testicular axis
• Vascular: arterial insufficiency, venous leakage, arteriovenous (AV) malformation, local trauma
• Medications
• Neurogenic: autonomic or sensory neuropathy, spinal cord trauma or tumor, cerebrovascular accident (CVA), multiple sclerosis (MS), temporal lobe epilepsy
• Systemic illness: renal failure, chronic obstructive pulmonary disease (COPD), cirrhosis of liver, myotonic dystrophy
• Peyronie’s disease
• Prostatectomy

Inappropriate Secretion of Antidiuretic Hormone

• Hyponatremia associated with hypervolemia (congestive heart failure [CHF], cirrhosis, nephrotic syndrome)
• Factitious hyponatremia (hyperglycemia, abnormal proteins, hyperlipidemia)
• Hypovolemia associated with hypovolemia (e.g., burns, GI fluid loss)

Inclusion Body Myositis

• Polymyositis
• Muscular dystrophy
• Diabetic neuropathy
• Trichinosis
• AIDS
• Alcoholic myopathy
• Hypothyroidism
• Hypophosphatemia
• Myasthenia gravis, Eaton-Lambert syndrome
• Amyotrophic lateral sclerosis (ALS)
• Guillain-Barré syndrome

Incontinence, Fecal39

NORMAL SPHINCTER

• Diarrhea
• Anorectal conditions

• Rectal carcinoma
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