Skull osteomyelitis (Pott puffy tumour)
History of left anterior parasagittal craniotomy for a aneurysm surgery. Presents with fever and cellulitis on left front.
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Hyperostosis characterized by thickening of the left frontal and ethmoid bone plate. Opacification of the left frontal sinus and ethmoid cells (sinus inflammation). Increase of extracranial soft tissue on left front. There are no signs of brain involvement.
This case represents a frontal and ethmoid sinus inflammation that extends to frontal craniotomy, with inflammation of the local subcutaneous. The case can be understood as a osteomyelitis of bone flap and as a Pott puffy tumour.
The patient was treated with antibiotics and craniectomy.