Solbiati et al developed a simple index for evaluating an enlarged lymph node based on dimensions determined during ultrasonography.
Parameters:
(1) longitudinal length of the lymph node in mm (L)
(2) transverse diameter of the lymph node in mm (T)
Solbiati index = L/T ratio =
= (longitudinal length) / (transverse diameter)
Interpretation:
• A ratio >= 2.0 is usually associated with benign processes.
• A ratio < 2 is usually seen with malignant processes.
Performance:
• According to Vassallo et al, a lymph node with a diameter < 8 mm is associated with false positives.
• Micrometastases cannot be detected by any imaging system, although the level of detection is constantly improving..
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Specialty: Hematology Oncology, Clinical Laboratory
ICD-10: ,
