We describe three cases of incidentally found lesions in the dural venous sinuses on magnetic resonance imaging, that other had erroneously considered pathological entities. We made the diagnosis of giant arachnoid granulations. The differential diagnosis with thrombosis or intrasinusal tumoral lesions was easily made on the basis of three typical radiological features of the granulations: the hyperintensity of the lesions on FLAIR, a blood vessel within the lesion and bone erosion.
Background:A 34-year-old caucasian male underwent laparoscopic gastric bypass. The procedure was complicated by leakage and secondary peritonitis with subsequent shock and diffuse intravascular coagulation. He underwent re-intervention with splenectomy, subtotal colectomy and resection of the distal ileum. Moreover, he developed acute kidney failure necessitating hemodialysis. A few hours after the dialysis, the patient developed bilateral non light-responding mydriasis. A CT scan of the brain was performed.
Background:A 49-year-old man presented at the emergency department with neck pain for one week but also with subfebrility, sore throat and difficulties for swallowing for 3 days. Physical examination showed limited neck movement and tenderness of the trapezius muscles. Blood test showed an elevated C-reactive protein level and a mild leukocytosis. Tracheolaryngoscopy was normal.
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