In syphilitic aortitis, PET showed marked radiotracer enhancement along the ascending aortic wall or in the thoracoabdominal aorta with involvement of the brachiocephalic and left carotid arteries.[sup],,, In syphilitic thoracic aneurysm, PET showed increased glucose metabolic activity, or no enhanced uptake.[sup], PET in gummatous
syphilis with adrenal gland involvement showed high uptake of FDG in lesions.[sup] Scheurkogel et al .[sup] reported a case of syphilis with liver involvement as a lesion with photopenia at the center of the mass, indicating an area of central necrosis.
Examination revealed disfiguring gummatous
lesions infiltrating the skin of the nose, glabella, and forehead, with clustered nodules in the left interciliary region (Figure).
These categories are divided into gummatous
syphilis, also known as late benign syphilis, cardiovascular syphilis, or late neurosyphilis.
Radiographic features of bone involvement by syphilis include: deposition of subperiosteal new bone along the inferior border of the mandible (syphilitic periostitis); gummatous
destruction of bone, especially the palate, resulting in a large radiolucent area; well demarcated destruction along a cortical margin; or multiple radiolucencies with poorly defined margins and sequestration (syphilitic osteomyelitis).
syphilis can appear in two years, though a period of 10 to 15 years is more usual.