Fig. 1From: Secondary cluster headache and numb chin syndrome as initial manifestation of high-grade B-lymphoma: a case reportImages (18F-FDG-PET). A Hypermetabolic zone in soft tissues of the right lower jaw region, plus the ipsilateral submental nerve. B Hypermetabolic nodular lesions of subcutaneous location in the bilateral parietal region. C Hypermetabolic lesions suggestive of nodular cluster of the left internal jugular chain and right paratracheal adenopathy. D Axial image of abdomen with distended stomach. Thickening of the gastric wall is observed, which presents major metabolism throughout itBack to article page