A Rare Case of Idiopathic Temporal Muscle Abscess in a Nine-month-old Infant

Temporal muscle abscess in children usually occurs from acute otitis media, and rapid progression and concomitant infectious disease often make it easy to diagnose. We report a rare case of a nine-month-old infant who showed right temporal mass with no evidence of infection. Computed tomography showed an osteolytic round mass, and magnetic resonance imaging revealed heterogenous enhancement with a high apparent diffusion coefficient. Malignant tumor was first suspected, but an open biopsy revealed the swelling to be temporal muscle abscess. It should be noted that temporal abscess may mimic the features of a malignant tumor, and multiple examinations should be performed for an accurate diagnosis.

[1]  A. Cila,et al.  Diffusion MR Imaging Features of Skull Base Osteomyelitis Compared with Skull Base Malignancy , 2010, American Journal of Neuroradiology.

[2]  Y. Roth,et al.  Luc's Abscess: The Return of an Old Fellow , 2010, Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology.

[3]  Jie Yang,et al.  Evaluation of solid lesions affecting masticator space with diffusion-weighted MR imaging. , 2010, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[4]  F. Biglioli,et al.  The masticator space. Value of computed tomography and magnetic resonance imaging in localisation and characterisation of lesions. , 2010, Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale.

[5]  A. Guermazi,et al.  The masticator space: from anatomy to pathology. , 2009, Journal of neuroradiology. Journal de neuroradiologie.

[6]  K. Tominaga,et al.  Utility of diffusion-weighted images using fast asymmetric spin-echo sequences for detection of abscess formation in the head and neck region. , 2006, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[7]  K. Yuasa,et al.  Value of computed tomography findings in differentiating between intraosseous malignant tumors and osteomyelitis of the mandible affecting the masticator space. , 2003, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[8]  N. Nada,et al.  Role of diffusion-weighted MRI in differentiation of masticator space malignancy from infection. , 2013, Dento maxillo facial radiology.

[9]  Yutaka Sato,et al.  Causes of facial swelling in pediatric patients: correlation of clinical and radiologic findings. , 2006, Radiographics : a review publication of the Radiological Society of North America, Inc.