Abdominal tuberculosis usually affects the gastrointestinal
tract, peritoneum, lymph nodes, liver or spleen. Tuberculosis of
the spleen is uncommon, except in association with miliary dissemination.
Isolated tuberculosis of the spleen is rare and difficult to diagnose.
The splenic lesion consists of epitheloid cells, lymphocytes and
giant cells. These small caseating granulomas will usually calcify
leading to multiple punctate calcification. Exceptionally, however,
the tubercles may coalesce in the spleen to form large abscesses.
Sonography :
* Acute Tuberculosis : Ultrasonography demonstrated scattered
hypoechogenic nodules within the spleen, but multiple hypoechoic
intraspicnic lesions have been reported in many others conditions
including myeloproliferative disorders including leukaemias, metastasis,
lymphoma and Hodgkin's disease.
* Chronic manifestation :
The ultasonography findings in spleen tuberculosis include multiple
small rounded or punctate intraparenchymal calcification. On ultrasound
these calcifications appear as small echogenic foci with acoustic
shadowing.
differential
diagnosis
of Micronodular calcification :
* :histoplasmosis.
* brucelloses.
* sarcoidosis.
* toxoplasmoses.
* Pneumocystis carinii.
* fungal abscesses.
Traetment :
acute Spleen Tuberculosis is treated like any other extrapulmonary
tuberculosis lesion. Chemotherapy with standard antituberculosis
drugs remains the corner stone of traetment.
Conclusion :
Despite it's rarity, splenic tuberculosis must be considered in
patients, with Micronodular calcification of
the spleen.
References
* 1: Am J Gastroenterol. 2003 May;98(5):1022-7.
Endoscopic ultrasound-guided biopsy for the diagnosis of focal
lesions of the spleen. Fritscher-Ravens A, Mylonaki M, Pantes
A, Topalidis T, Thonke F, Swain P. Royal London Hospital, London,
United Kingdom.
* 2: J Radiol. 2002 Apr;83(4 Pt 1):479-81. [Isolated tuberculosis
of the spleen. Report of a case] [Article in French] Mahi M, Chaouir
S, Amil T, Hanine A, Benameur M. Services d'imagerie Medicale,
Hopital Militaire d'Instruction Mohamed V, Rabat, Maroc, France.
mahi.m@caramail.com
* 3: Int J Clin Pract. 1999 Jun;53(4):318-9. Splenic tuberculosis:
an unusual sonographic presentation. Chandra S, Srivastava DN,
Gandhi D. Department of Radiodiagnosis, All India Institute of
Medical Sciences, New Delhi, India.
* 4: Ann Radiol (Paris). 1995;38(7-8):403-7. [Splenic tuberculosis.
Apropos of 12 cases] [Article in French] Adil A, Chikhaoui N,
Ousehal A, Kadiri R. Service Central de Radiologie, CHU Ibn Rochd,
CASABLANCA, Maroc.
* 5: Rev Infect Dis. 1991 Nov-Dec;13(6):1069-71. Related Articles,
Links Splenic tuberculosis in patients with AIDS. Pedro-Botet
J, Maristany MT, Miralles R, Lopez-Colomes JL, Rubies-Prat J.
Department of Medicine, Hospital del Mar, Universidad Autonoma
de Barcelona, Spain.
* 6: Clin Radiol. 1991 Feb;43(2):128-9. Related Articles, Links
Ultrasound detection of tuberculomas of the spleen. Kapoor R,
Jain AK, Chaturvedi U, Saha MM. Department of Radiology, LNJPN
Hospital, New Delhi, India.
Other NetCase : Rennes1
|