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​Symptoms and Signs – Differential Diagnosis of Sexually Transmitted Diseases, Anorectal Region
ULCERATIVE
• Lymphogranuloma venereum
• Herpes simplex virus
• Early (primary) syphilis
• Chancroid (Haemophilus ducreyi)
• Cytomegalovirus
• Idiopathic (usually HIV positive)
NONULCERATIVE
• Condyloma acuminatum
• Gonorrhea
• Chlamydia (C. trachomatis)
• Syphilis
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​Symptoms and Signs – Differential Diagnosis of Shigellosis
• Bacterial gastroenteritis
• Dysentery caused by Entamoeba histolytica
• Enterotoxigenic Escherichia coli
• Pseudomembranous colitis
• Viral gastroenteritis
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​Symptoms and Signs – Differential Diagnosis of Shoulder Pain
WITH LOCAL FINDINGS IN SHOULDER
• Trauma: contusion, fracture, muscle strain, trauma to spinal cord
• Arthrosis, arthritis, rheumatoid arthritis (RA), ankylosing spondylitis
• Bursitis, synovitis, tendinitis, tenosynovitis
• Aseptic (avascular) necrosis
• Local infection: septic arthritis, osteomyelitis, abscess, herpes zoster, TB
WITHOUT LOCAL FINDINGS IN SHOULDER
• Cardiovascular disorders: ischemic heart disease, pericarditis, aortic aneurysm
• Subdiaphragmatic abscess, liver abscess
• Cholelithiasis, cholecystitis
• Pulmonary lesions: apical bronchial carcinoma, pleurisy, pneumothorax, pneumonia
• GI lesions: peptic ulcer disease (PUD), gastric neoplasm, peptic esophagitis
• Pancreatic lesions: carcinoma, calculi, pancreatitis
• CNS abnormalities: neoplasm, vascular abnormalities
• Multiple sclerosis (MS)
• Syringomyelia
• Polymyositis/dermatomyositis
• Psychogenic
• Polymyalgia rheumatica
• Ectopic pregnancy
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​Symptoms and Signs – Differential Diagnosis of Shoulder Pain by Location
TOP OF SHOULDER (C4)
• Cervical source
• Acromioclavicular
• Sternoclavicular
• Diaphragmatic
SUPEROLATERAL (C5)
• Rotator cuff tendinitis
• Impingement
• Adhesive capsulitis
• Glenohumeral arthritis
ANTERIOR
• Bicipital tendinitis and rupture
• Glenoid labral tear
• Adhesive capsulitis
• Glenohumeral arthritis
• Osteonecrosis
AXILLARY
• Neoplasm (Pancoast’s, mediastinal)
• Herpes zoster
Sialadenitis
• Salivary gland neoplasm
• Ductal stricture
• Sialolithiasis
• Decreased salivary secretion secondary to medications (e.g., amitriptyline, diphenhydramine, anticholinergics)
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​Symptoms and Signs – Differential Diagnosis of Sialolithiasis
• Dental abscess
• Lymphadenitis
• Noninfectious salivary gland inflammation (e.g., Sjögren’s syndrome, sarcoidosis, lymphoma)
• Salivary duct stricture
• Salivary gland bacterial (staphylococcus or streptococcus), viral (mumps), or fungal infection (sialadenitis)
• Salivary gland tumor
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​Symptoms and Signs – Differential Diagnosis of Silicosis
• Granulomatous pulmonary vasculitis
• Hypersensitivity pneumonitis
• Interstitial lung disease
• Langerhans cell granulomatosis (histiocytosis X)
• Lung cancer
• Other pneumoconiosis, berylliosis, hard metal disease, asbestosis
• Sarcoidosis
• Tuberculosis
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​Symptoms and Signs – Differential Diagnosis of Sjögren’s Syndrome
• Age-related exocrine gland dysfunction
• Anxiety
• Medication-related dryness (e.g., anticholinergics)
• Mouth breathing
• Other: sarcoidosis, primary salivary hypofunction, irradiation injury, amyloidosis
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