Fig. 3 | Scientific Reports

Fig. 3

From: Relationship among ultrasound features, pus Mycobacterium tuberculosis load, and efficacy of antituberculosis drugs in patients with necrotizing tuberculous lymphadenitis

Fig. 3

A 30-year-old man with left cervical tuberculous lymphadenitis. (a) Conventional ultrasound revealed enlarged lymph node (arrow) with hypoechoic to anechoic internal echoes, accompanied by disrupted lymphatic gates. The maximum longitudinal diameter of lymph nodes was 2.8 cm. The maximum short diameter of lymph nodes was 1.1 cm. The maximum area of lymph nodes was 2.131 cm2. (b) Contrast-enhanced ultrasound revealed nonenhancement, which indicated the area of lymph node necrosis (arrow). The maximum necrotic area was 1.197 cm2. (c) Ultrasound-guided sampling identified targets as nonenhanced areas. The removal of approximately 1 mL of pus sample. (d) The Ct value for pus MTB burden was 16.77.

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