Isolated muscular tuberculosis: unusual location of the Koch bacillus
Zeineb Alaya, Walid Osman
The Pan African Medical Journal. ;26:158. doi:10.11604/pamj..26.158.11795

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Isolated muscular tuberculosis: unusual location of the Koch bacillus

Zeineb Alaya, Walid Osman
Pan Afr Med J. 2017; 26:158. doi:10.11604/pamj.2017.26.158.11795. Published 16 Mar 2017



A 23-year-old female patient with a family history of pulmonary tuberculosis and tuberculous spondylodiscitis was hospitalized for swelling of the left anterior-external surface of the left thigh, (A) with altered general status. Biology has shown a biological inflammatory syndrome. The ultrasound showed a collection opposite the great trochanter fusing towards the lodge of the gluteus muscle and forward towards the terminal part of the common chief ischio-psoas. MRI of the hips revealed an intra-muscular collection of the antero-lateral side of the thigh root, taking contrast in the periphery, involving the quadriceps muscle and tensor of facia lata, (B and C). The biopsy of the collection under ultrasound guidance brought back 30 cc of casein. The diagnosis of tuberculosis of the quadriceps muscle and tensor of the facia lata was based on the positivity of the tuberculin skin test, (D), the positivity of the PCR for Mycobacterium tuberculosis in the puncture fluid and histology showing multiple epithelioid granulomas centered by caseous necrosis. There were no other tuberculous sites. The patient was treated with antituberculosis drugs for 12 months with good progress. Muscular tuberculosis (MT) is a rare localization of the disease (0.01 to 2%). Its occurrence without associated bone involvement is exceptional. MT often simulates a muscular tumor. MRI contributes to the improvement of the sensitivity of the diagnosis of MT because it allows to specify the extent of the muscular lesions and to orient the site of the muscular biopsy. The diagnosis is essentially based on histology.


Corresponding author:
Zeineb Alaya, Department of Rheumatology, Farhat Hached Hospital, Faculty of Medicine of Sousse, Ibn el Jazzar Street, 4000 Sousse, Tunisia
zeineb_a@hotmail.fr

©Zeineb Alaya et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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