Journal of Ultrasound in Medicine, Vol 20, Issue 5 533-538, Copyright © 2001 by American Institute of Ultrasound in Medicine
Ultrasonographic differentiation between tuberculous lymphadenitis and malignant lymph nodes
S. Asai, H. Miyachi, K. Suzuki, K. Shimamura and Y. Ando
Department of Clinical Pathology, Tokai University School of Medicine, Tokai University Hospital, Isehara, Japan.
OBJECTIVE: To assess the usefulness of ultrasonography in the differential
diagnosis of cervical tuberculous lymphadenitis versus malignant lymph
nodes. METHODS: Ultrasonography of cervical lymph nodes was performed with
a real-time linear scanner using a 7.5- or 11-MHz probe or both.
Ultrasonographic findings were retrospectively reviewed in 73 patients: 49
with malignant lymphoma, 15 with tuberculous lymphadenitis, and 9 with
metastatic lymph nodes. RESULTS: Ultrasonographic features specific to
cervical tuberculous lymphadenitis were strong echoes (33.3%) and an
echogenic thin layer (86.7%). When the lymph nodes had at least 1 of these
2 features, tuberculous lymphadenitis was diagnosed with a sensitivity of
100% and a specificity of 100%. CONCLUSIONS: Ultrasonographic evaluation of
cervical lymph nodes can be useful in the diagnosis of cervical tuberculous
lymphadenitis.