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KMID : 1103720210820041005
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Journal of the Korean Society of Radiology
2021 Volume.82 No. 4 p.1005 ~ p.1010
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Immunoglobulin G4-Related Disease Involving the Pterygopalatine Fossa, Mimicking Invasive Aspergillosis: A Case Report and Literature Review
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Son Jin-Young
Kim Jee-Young
Cho Jin-Hee
Lee Eun-Jung
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Abstract
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We report a case of Immunoglobulin G4 (IgG4) related disease involving the pterygoplataine fossa. A 83-year-old male presented with left ocular pain and visual disturbance. CT showed an isodense soft tissue lesion in the left pterygopalatine fossa with bony sclerotic changes and erosion. MRI revealed an infiltrative soft tissue mass in the left pterygopalatine fossa as a T2 slightly low signal intensity and heterogeneous enhancement. The patient underwent left ethmoidectomy, and biopsy of the mass was conducted. The histopathological diagnosis was IgG4-related disease. In this case, it was difficult to differentiate invasive aspergillosis, which is common in immunocompromised patients, considering the patient's clinical history of diabetes mellitus. This report describes the imaging findings of IgG4-related disease mimicking invasive sinusitis such as invasive aspergillosis.
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KEYWORD
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Immunoglobulin G4-Related Disease, Pterygopalatine Fossa, Immunocompetence
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