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Fig. 4 | The Journal of Headache and Pain

Fig. 4

From: Headaches precipitated by cough, prolonged exercise or sexual activity: a prospective etiological and clinical study

Fig. 4

Preoperative (a) and postoperative (b) T2-weighted sagittal MRI of a 36-year-old woman with cough headache. Note the presence of tonsilar descent (arrow) and flattening of posterior fossa (asterisks) and the absence of cisterna magna. b After posterior fossa reconstruction, notice the appearance of cisterna magna with restitution of cerebrospinal fluid transit (asterisks) with upward migration of the tonsils

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