Clinical Findings |
Differential Diagnosis |
Differential Tests |
CUTANEOUS LESIONS |
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Bruising |
Trauma |
Rule out other disease |
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Hemophilia |
Prothrombin time, partial prothromboplastin time |
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Von Willebrand's disease |
Von Willebrand's panel |
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Henoch Schonlein purpura |
Typical distribution of lesions |
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Purpura fulminans |
Rule out sepsis |
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Ehlers-Danlos syndrome |
Hyperextensibility |
Local erythema or bullae |
Burn |
Clinical history and characteristics |
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Staphylococcal impetigo |
Culture, Gram stain |
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Bacterial cellulitis |
Culture, Gram stain |
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Pyoderma gangrenosum |
Culture, Gram stain |
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Photosensitivity and phototoxicity reactions |
History of sensitizing agent, oral or topical reactions |
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Frostbite |
Clinical history and characteristics |
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Herpes, zoster or simplex |
Scraping, culture |
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Epidermolysis bullosa |
Skin biopsy |
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Contact dermatitis, allergic or irritant |
Clinical characteristics |
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OCULAR FINDINGS |
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Retinal hemorrhage |
Shaking or other trauma |
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Bleeding disorder |
Coagulation studies |
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Neoplasm |
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Resuscitation |
History |
Conjunctival hemorrhage
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Trauma |
Culture, Gram stain |
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Bacterial or viral conjunctivitis |
History |
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Severe coughing |
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Orbital swelling
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Trauma |
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Orbital or periorbital cellulitis |
Complete blood count, culture, sinus radiographs |
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Metatastic disease |
Radiograph, CT scan, CNS examination |
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Epidural hematoma |
Radiograph, CT scan, CNS examination |
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HEMATURIA |
Trauma |
Rule out other disease |
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Urinary tract infection |
Culture |
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Acute or chronic forms of glomerular injury (e.g., glomerulonephritis) |
Renal function tests, biopsy |
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Hereditary or familial renal disorders (e.g., familial benign recurrent hematuria) |
History |
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Other (e.g., vasculitis, thrombosis, neoplasm, anomalies, stones, bacteremia, exercise) |
History, cultures, radiologic studies |
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ACUTE ABDOMEN |
Trauma |
Rule out other disease |
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Intrinsic gastrointestinal disease (e.g., peritonitis, obstruction, inflammatory bowel disease, Meckel's diverticulum) |
Radiographs, stool tests, and others |
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Intrinsic urinary tract disease (infection, stone) |
Culture, ultrasound, intravenous pyelogram |
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Genital problems (e.g., torsion of spermatic cord, ovarian cyst) |
History, physical examination, ultrasound, radiograph, laparoscopy |
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Vascular accident, as in sickle cell crisis |
Angiography, sickle cell studies |
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Other (e.g., mesenteric adenitis, strangulated hernia, anaphylactoid purpura, pulmonary disease, pancreatitis, lead poisoning, diabetes) |
As appropriate |
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OSSEOUS LESIONS |
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Fractures (multiple or in various stages of healing)
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Trauma |
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Osteogenesis imperfecta |
Radiographic and blue sclerae |
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Rickets |
Nutritional history |
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Birth trauma |
Birth history |
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Hypophosphatasia |
Decreased alkaline phosphatase |
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Leukemia |
Complete blood count, bone marrow |
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Neuroblastoma |
Bone marrow, biopsy |
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Status after osteomyelitis or septic arthritis |
History |
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Neurogenic sensory deficit |
Physical examination |
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METAPHYSEAL LESIONS, EPIPHYSEAL LESIONS, OR BOTH |
Trauma |
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Scurvy |
Nutritional history |
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Menkes syndrome |
Decreased copper, decreased ceruloplasmin |
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Syphilis |
Serology |
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"Little League" elbow |
History |
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Birth trauma |
History |
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SUBPERIOSTEAL OSSIFICATION |
Trauma |
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Osteogenic malignancy |
Radiograph and biopsy |
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Syphilis |
Serology tests |
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Infantile cortical hyperostosis |
No metaphyseal irregularity |
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Osteoid osteoma |
Response to aspirin |
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Scurvy |
Nutritional history |
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SUDDEN INFANT DEATH SYNDROME |
Unexplained death |
Autopsy |
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Trauma |
Autopsy |
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Asphyxia (aspiration, nasal obstruction, laryngospasm, sleep apnia) |
"Near-miss" history |
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Infection (e.g., botulism) |
Cultures, bacterial and viral |
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Immunodeficiency |
Immunoglobulins |
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Cardiac arrhythmia |
Autopsy |
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Hypoadrenalism |
Electrolytes, ACTH stimulation test |
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Metabolic abnormality |
Ca++, Mg++, other |
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Hypersensitivity to cow's milk protein |
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