PMC6777012_01
Lesion in the right alveolar ridge of the mandible with bone reabsorption; Presence of a cervical enlarged lymph nodes.
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A cervical and thoracic computed tomography (CT) scan revealed a lesion in the right alveolar ridge of the mandible with bone reabsorption, and multiple bilateral enlarged cervical lymph nodes with high contrast enhancement ( Figure 1).
(
A) Area of heterogenous contrast enhancement in right side of the floor of mouth and tongue as well as area of peripheral contrast enhancement with central necrosis (21,7x8 mm); (
B) and (
C) presence of enlarged mediastinal lymph nodes (16,78mm, 10,34mm and 11,98mm).
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In January 2014, the cervical and thoracic CT scan revealed local and distant relapse with an area of heterogenous contrast enhancement in the right side of the floor of mouth and tongue as well as presence of mediastinal lymphadenopathies ( Figure 2).
(
A) Enlarged lymph node (12,8 mm) visible in the CT scan with correspondent abnormal in FDG uptake in the PET (
B); (
C) Focus of increased uptake in multiple mediastinal and hilar lymph nodes.
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An 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) scan was obtained, showing hypermetabolic mediastinal and hilar lymph nodes ( Figure 3).