IgG4-related periarteritis in the coronary artery and subclinical pericarditis assessed the presence and monitoring of therapy response by PET and CT scan

Description 

A 70-year-old woman suffered from bilateral lacrimal gland enlargement from 2 years ago (figure 1). Geranium-enhanced MRI disclosed diffuse enlargement of bilateral eyelids indicating IgG4-related disease (IgG4RD), especially Mikulicz's disease. Laboratory tests showed elevation of serum IgG4 concentration and histopathological findings of the lacrimal glands showed IgG4-positive cell infiltration and obliterated veins by inflammatory cells, which consist of lymphocytes and plasma cells (obliterative phlebitis).

Figure 1

Bilateral lacrimal gland enlargement with predominance of right ones observed as a representative pathophysiological finding in this patient with IgG4-related disease.

Then, she was diagnosed with IgG4RD. We performed chest CT as screening for comorbidities of Mikulicz's disease. Chest CT revealed left circumflex artery (LCX) wall thickening. Coronary CT showed thickening of the left anterior descending artery and LCX. For suppressing physiological myocardial uptake, the patient was asked to restrict carbohydrate intake 24 hours before...

https://ift.tt/2Jrvomo