Differential diagnosis of palpable masses
| Diagnosis | Sonographic signs |
| Less common | |
| Breast tumor | Nonhomogeneous, hypoechoic |
| Suppurative thyroiditis | Nonhomogeneous, hypoechoic/echogenic |
| Salivary gland swelling | Usually hypoechoic, elliptical foci |
| Metastases | Round lesions of varying echogenicity, depending on the primary tumor and stage |
| Nodular varix | Compressible, anechoic nodule, shows blood flow by CDS |
| Rare | |
| Neck cyst | Anechoic mass |
| Malignant lymphoma , lymphogranulomatous Hodgkin disease | Enlarged lymph nodes, sandwich sign |
| Lipoma, fibroma | Round or elliptical, well-circumscribed mass; fibroma is hypoechoic, lipoma is echogenic |
| | |
Conditions that cannot be diagnosed with ultrasound
Less common: Infections (erysipelas, infectious mononucleosis, tonsillitis), systemic diseases (lymphatic leukemia)
Rare: Infections (lymphangitis, vaccination reaction, otitis media, Plaut–Vincent tonsillitis, pseudocroup, pediatric diseases, ulcerative stomatitis, actinomycosis, venereal diseases, tropical diseases), systemic diseases (Waldenström macroglobulinemia, Pancoast tumor,lymphangioma, malignant reticulosis)
Ultrasound Tags:
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