Related Experiment Video
Updated: Feb 8, 2026

Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children
Published on: September 11, 2018
Thinking outside the rectum: a unique approach to the retrieval of gluteal foreign bodies
Sarah Blue1, Melissa Najarian2
1University of Minnesota Medical School, 420 Delaware St SE, Minneapolis, MN, USA.
Abstract:
Penetrating gluteal wounds with retained foreign bodies are relatively uncommon and therefore there is no agreed-upon method of extraction. Retrieval of such objects can be difficult to achieve due to imperfect anatomy and a lack of clear planes across which the objects traverse, sometimes requiring novel techniques for foreign body retrieval. We saw a 37-year-old male with a 2-month history of a draining abscess on his right buttock. CT and manual probing of the wound demonstrated a 5-cm tract with a possible foreign body within. We took the patient to the operating room for exploration of the tract under general anesthesia, allowing for palpation of the foreign object as well as digital rectal exam, which identified an object passing posterior to the rectum. A cystoscope was used to widen the tract and allow for better visualization. Grasping forceps were inserted into the cystoscope and used to capture/retrieve the object.
Related Concept Videos
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Other Unique Bacteria
Counterfactual Thinking
Retrieval
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
Second Uniqueness Theorem
In contrast, consider that the electric field is non-unique and apply Gauss's law in divergence form in the region between the conductors and the integral form to the surface...
Critical Thinking I

