Increased through-transmission in abdominal tuberculous lymphadenitis

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
Shaya GhazinoorR Brooke Jeffrey

Abstract

To describe 2 cases of abdominal tuberculosis in which sonographic evaluation of mesenteric lymphadenopathy showed increased through-transmission suggestive of caseating necrosis. Two patients with abdominal pain and other symptoms (including fever, diarrhea, and weight loss) underwent abdominal sonography with a 6-MHz curved array transducer. One patient also underwent sonographically guided fine-needle aspiration of multiple lymph nodes, and the other underwent computed tomography, colonoscopy, and colon biopsy. In both patients, sonography showed multiple rounded hypoechoic lesions with increased ultrasound through-transmission suggestive of necrotic lymphadenopathy. No color flow was shown. In 1 case, the posterior acoustic enhancement was accentuated in the harmonic imaging mode. In the other case, the lesions shown on sonography corresponded to computed tomographic findings of low-density lymph nodes. Results of fine-needle aspiration and colon biopsy were positive for tuberculosis. Posterior acoustic enhancement in abdominal lymphadenopathy can suggest the diagnosis of tuberculous lymphadenitis. Detection of this finding is facilitated by scanning in the harmonic mode. Necrotic nodes will lack color flow and can be disti...Continue Reading

References

May 9, 2000·Journal of Clinical Ultrasound : JCU·A BatraS B Paul
Jul 21, 2000·Australasian Radiology·M SheikhA I Behbehani
May 10, 2001·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·S AsaiY Ando
Dec 13, 2002·Journal of Clinical Ultrasound : JCU·Ada KesslerMoshe Graif

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