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A foreign body reaction (FBR) is a typical tissue response to a foreign body within biological tissue. [1] It usually includes the formation of a foreign body granuloma . [ 2 ] Tissue encapsulation of an implant is an example, as is inflammation around a splinter . [ 3 ]
Most glass splinters are inert, and generally lack the ability to migrate to other regions of the body. [4] Other: Pencil lead and other graphite foreign bodies, once lodged in the cutaneous layer of the skin, can cause permanent pigment tattooing if not removed immediately. Metallic bodies range from BB pellets to grenade shrapnel. Smaller ...
All patients are reviewed for contraindications prior to MRI scanning. Medical devices and implants are categorized as MR Safe, MR Conditional or MR Unsafe: [6] MR-Safe – The device or implant is completely non-magnetic, non-electrically conductive, and non-RF reactive, eliminating all of the primary potential threats during an MRI procedure.
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Foreign bodies in the peritoneum eventually become contained in a foreign body granuloma. In the extremely rare case of retained ectopic pregnancy , this forms a lithopedion , which involves the fetus being too large to be reabsorbed, and is calcified [ 13 ] as a means of shielding the surrounding tissue from infection.
Gossypiboma describes a mass within a patient's body comprising a cotton matrix surrounded by a foreign body granuloma. [2] [3] Textiloma is derived from textile (surgical sponges have historically been made of cloth), and is used in place of gossypiboma due to the increasing use of synthetic materials in place of cotton. [2]
Increased respiratory rate may be the only sign of foreign body aspiration in a child who cannot verbalize or report if they have swallowed a foreign body. [6] If the foreign body does not cause a large degree of obstruction, patients may present with chronic cough, asymmetrical breath sounds on exam, or recurrent pneumonia of a specific lung ...
The halo sign is also understood as a region of ground-glass attenuation surrounding a pulmonary nodule on an X-ray computed tomography (CT scan) of the chest. It can be associated with hemorrhagic nodules , tumors , or inflammatory processes, but is most commonly known as an early radiographic sign of invasive pulmonary infection by the fungus ...