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Vol. 18 - Num. 70

Clinical Reviews

Obturator pyomyositis in a child in association with group A streptococcal pharyngitis

Victoria Mon Trottia, Concepción Sánchez Pinab, Pilar Galán del Ríoc, Miguel Ángel Zafra Antac, Sonia Allodi de la Hozd, Carmen María Hinojosa Mateoe

aMIR-Medicina de Familia. CS Griñón. Griñón. Madrid. España.
bPediatra. CS San Andrés. Madrid. España.
cServicio de Pediatría. Hospital Universitario de Fuenlabrada. Fuenlabrada. Madrid. España.
dServicio de Radiología. Hospital Universitario de Fuenlabrada. Madrid. España.
eMIR-Pediatría. Hospital Universitario de Fuenlabrada. Madrid. España.

Correspondence: V Mon. E-mail:

Reference of this article: Mon Trotti V, Sánchez Pina C, Galán del Río P, Zafra Anta MA, Allodi de la Hoz S, Hinojosa Mateo CM. Obturator pyomyositis in a child in association with group A streptococcal pharyngitis. Rev Pediatr Aten Primaria. 2016;70:165-70.

Published in Internet: 03-05-2016 - Visits: 15540


We present the case of an eight-year-old child who developed a pyomyositis of the internal and external obturator muscles and streptococcal tonsillitis simultaneously. Initially, he only presented pain in the lower left limb and he was diagnosed a contracture of the biceps femoris muscle. A few days after, he began with odynophagia, cutaneous exanthema and fever with tonsillar exudate. However, the pain in the left leg persisted, lower lumbar pain and Lassègue sign appeared, so we underwent a magnetic resonance imaging demonstrating the pyomyositis. We reviewed recently described cases of pyomyositis, and we observed an increase of their incidence in our environment. A comparison is made with other case reviews to identify the clinical symptoms that could help in diagnosing the condition early.


Streptococcus pyogenes Pharyngitis Pyomyositis



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