Polarization microscopy was negative for foreigh body. Sarcoidosis is a multisystem disorder characterized histologically by granulomas in two or more organ systems. It is a diagnosis of exclusion after other causes of granulomas have been ruled out. Additional supportive evidence comes from the Kveim-Siltzbach test which is rarely performed today. This condition presents in many ways but typically involves the lungs, skin lymph nodes, and eyes.
Sarcoidosis can arise in scars from a variety of etiologies.
The appearance or reactivation of sarcoid lesions in old scars has been described previously. However both patients also had pulmonary involvement. The presentation of the patient in this case is unusual in that this involved not only original bum scars but also skin graft and donor sites. Even more intriguing is that graft and donor sites for the subsequent operations had no clinical involvement at all. The differential diagnosis for the histologic finding includes foreign body granulomas.