background & importance: the use of local hemostatic agents in neurosurgery is mandatory in order to control the sequelae of intracerebal hemorrhage. it is widely used in oxidized regenerated cellulose (surgicel™). case presentation: a 54-year-old man previously operated for grade ii meningioma came back to our attention due to the onset of left side arm weakness one month after surgery. the ct...

Foreign body granuloma reaction is a tissue response to some extraneous materials which incite a characteristic pattern of granulomatous reaction. Several cases of foreign body granulomas on the face have been reported, especially after the injection of dermal fillers. Oleoma or paraffinoma is defined as a foreign body granuloma resulting from the injection of oily substances into the skin or s...

BACKGROUND The importance of meniscal preservation has become widely accepted, and meniscal repair techniques have evolved over recent years. With new techniques come new complications, which are critical to recognize. PURPOSE To describe a new complication of foreign body reaction from a nonabsorbable suture anchor associated with improper placement of the all-inside meniscal device. STUDY...

All biomaterials, when implanted in vivo, elicit cellular and tissue responses. These responses include the inflammatory and wound healing responses, foreign body reactions, and fibrous encapsulation of the implanted materials. Macrophages are myeloid immune cells that are tactically situated throughout the tissues, where they ingest and degrade dead cells and foreign materials in addition to o...

The foreign body reaction describes the host’s inflammatory response to an exogenous material. In the rapidly expanding disciplines of nanotechnology and nanomedicine, the interplay between an implant and host tissue has become increasingly important. Nanomedicine fundamentally aims to monitor and direct cell function at the molecular length scale. Controlling cell-biomaterial interactions is k...