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Image courtesy of Medscape | Sam Shlomo Spaeth.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Gastrointestinal Tract Foreign Bodies

Foreign bodies in the gastrointestinal (GI) and genitourinary (GU) tracts are common presenting complaints in emergency departments (EDs) and clinics. Depending on the location, size, and shape of the foreign body, there are unique sets of presentations, risks, and treatment options. When an obvious history is not available to explain a patient's presentation, clinicians must maintain a high index of suspicion for foreign bodies to prevent subsequent morbidity or mortality. Radiography, ultrasonography (US), and magnetic resonance imaging (MRI) all may play a role, depending on the suspected location and composition of the foreign body.

Shown is a radiograph from a child who ingested a board game piece.

Image courtesy of Lars Grimm, MD, MHS..

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Adults who have ingested a foreign body usually present to the ED or clinic soon thereafter. In children, ingested foreign objects are frequently not detected until they cause a complication (eg, dysphagia, weight loss, hypersalivation, emesis, chest pain, sore throat, stridor, cough, altered mental status, or fever). Most foreign bodies ingested by children will be entrapped in the esophagus.[1]

Shown is a neck radiograph revealing a hook in the hypopharynx of a 1-year-old patient.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

After taking a careful history of a known or potential foreign body ingestion, obtain plain radiographs. Radiopaque objects (eg, metal, glass, or stone) will readily appear on plain films, but even radiolucent objects (eg, wood or plastic) may be appreciated in the presence of secondary signs (eg, airway compression).[2] In addition, handheld metal detectors are both sensitive and specific for identifying the location of ingested metallic objects.

Foreign body ingestion in adults is typically accidental. However, the image shown demonstrates numerous thumb tacks ingested in a suicide attempt.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Shown is a button battery in the bowel of an adult.

Fortunately, most ingested foreign bodies pass harmlessly through the GI tract. Avoid attempts to induce vomiting by giving abdominal thrusts or syrup of ipecac.

Foreign bodies identified within the esophagus should generally be considered impacted and should be removed via endoscopy. Rigid endoscopy is recommended for sharp objects because it enables the use of optical forceps with strong grasping capacity.[1] If esophageal perforation occurs, surgery may involve rigid sigmoidoscopy or thoracotomy.[3]

However, blunt foreign bodies ingested within the preceding 24 hours can usually be monitored. These objects typically pass through the GI tract spontaneously. However, if foreign bodies are impacted, tracheoesophageal or aortoesophageal fistulas may develop.[4]

Foreign bodies in the stomach or intestines also typically pass through spontaneously. However, very sharp or pointed objects (eg, sewing needles) may perforate the intestinal wall and should be removed endoscopically. The progression of radiopaque foreign bodies can be monitored via daily radiography.

Images courtesy of Medscape/Casey M Calkins, MD (left, top right inset); US Mint via Wikimedia Commons (bottom right inset).

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

The image on the left is from a child with an incomplete intestinal web in whom a coin had become impacted in the jejunum. Laparotomy was required to resect the dilated jejunum and remove the eroded penny.

Although some foreign bodies are likely to pass spontaneously, patients with recurrent symptoms should be evaluated. Objects that are too long (>6 cm) or too wide (>2 cm) to pass through the pyloric sphincter should be removed. Patients with narrowing of the GI tract, typically from congenital or postsurgical causes, are at risk for impaction.

Endoscopy is typically effective for upper GI foreign bodies, but surgical laparotomy is indicated for obstructive foreign bodies that cannot be reached or removed via endoscopy.[5] A potential complication of ingested foreign bodies is a local inflammatory process, which can lead to pain, bleeding, fibrosis, obstruction, or perforation.

Adapted image from Kelly J, Corrigan M, Cahill RA, Redmond HP. World J Emerg Surg. 2007;2:9. PMID: 17448234, PMCID: PMC1868019. [Creative Commons Attribution License 2.0 Generic (CC by 2.0).]

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Body Packing/Body Stuffing of Drugs

The image demonstrates multiple cocaine capsules (asterisks) within the stomach and intestines.

Body packers and body stuffers ingest packets filled with drugs, most commonly heroin or cocaine, to avoid detection. Body packers engage in the planned ingestion of drugs, often wrapped in latex condoms or gloves, at one location, and then defecate the packets at another location, typically in a different country. Packets may also be hidden in the anus or vagina. If the packets rupture anywhere within the carrier's body, death may result from massive drug release. The typical packer is male and 30 years of age at an international airport.[6]

Body stuffers impulsively ingest less carefully wrapped drugs to avoid imminent detection; these individuals are also at high risk for toxicity or death. Consider hospitalization for patients who ingest drug packets. Most asymptomatic cases are treated with laxatives or enemas, but laparotomy or surgery may be needed for complicated cases or in symptomatic patients.[7]

Image courtesy of Medscape/David W Munter, MD, MBA.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Rectal Foreign Bodies

Shown is a vibrator in the rectum along with a pair of salad tongs that became lodged during the patient's attempts at self-removal.

Most rectal foreign bodies are found in men with an increased incidence in the United Kingdom.[8] Rectal foreign bodies may be self-inserted by children, psychiatric patients, or for sexual gratification in adults.[9]

Typically found objects are vibrators, dildos, light bulbs, candles, shot glasses, and bottles. Some rectal foreign bodies were swallowed but produce complications only after transiting to the rectum. Patients may be very embarrassed to disclose the circumstances regarding the foreign body insertion and may have made multiple attempts at self-removal.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

The image shows a component of a video game system that was self-inserted into the rectum after a night of binge drinking.

Typical clinical findings of a rectal foreign body are pain upon defecation, abdominal pain, rectal bleeding, pruritus, and constipation. Delays in seeking medical attention and multiple attempts at self-removal can lead to mucosal edema and muscular spasms, making removal of the object more difficult.

A rectal examination should initially be deferred until the location and type of foreign body can be determined so as to reduce the chances that a fragile object (eg, light bulb) might be broken, the examiner might be injured if the object is sharp, or the object might be accidentally pushed deeper within the body. Plain radiography of the abdomen or pelvis is typically sufficient to identify most objects. Upright chest radiography may be indicated if perforation is suspected.

Image from Cawich SO, et al. Case Rep Emerg Med. 2015;2015:815616. PMID: 25945267; PMCID: PMC4405213. [CC by 3.0 Unported.]

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Radiographs of the pelvis, left and center, outline a foreign body within the rectum, specifically the tip of a cigar sheath. At right, laparoscopic graspers were used to retrieve the foreign object.

High-lying bodies may have to be removed by means of colonoscopy or surgical intervention. Low-lying bodies below the sacral curve and the rectosigmoid junction can be removed via direct visualization after insertion of a retractor or rectal speculum.

Gentle traction with forceps can remove most objects. If a strong amount of negative suction is created, passage of a Foley catheter beyond the object will equalize the pressure. Very low–lying objects may be removed via digital manipulation while the patient performs a Valsalva maneuver.

General anesthesia or conscious sedation may be needed to facilitate manual removal of rectal foreign bodies.[10] Bleeding, mucosal injury, and rectal perforation are the most common complications, but the prognosis is still very good. Avoid the use of enemas, laxatives, and cathartics to aid in removal.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Urethral Foreign Bodies

The image demonstrates a cylindrical foreign body—likely a pen—projecting over the urethra and bladder.

Urethral foreign bodies are often the result of autoerotic activities. These objects can cause severe damage to the urethra and lead to fistula formation. Retrograde urethrography (RUG) may be performed to evaluate for urethral patency. Retrograde migration of the foreign body may also occur, leaving the item within the bladder. Acute presentation of foreign bodies are typically infection and urethral injury, but chronic presentations can lead to erosion of the surrounding tissue and urethra or tunica albuginea.[11]

Consultation with a urologist is important if there is any concern about urethral injury and if removal via direct visualization needs to be performed. Patients with previous injury to the urethra are at risk for subsequent stricture formation.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

The image demonstrates a metallic foreign body from a BB gun without evidence of urethral injury.

For male patients with suspected urethral injury involving a foreign body, RUG may be performed. Contrast material is injected into the urethra through the urinary meatus, and fluoroscopic images are obtained. Any extravasation of contrast medium beyond the lumen of the urethra is readily visible. Knowledge of the exact location of luminal injury is important for presurgical planning.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Vaginal Foreign Bodies

Retained vaginal foreign bodies may be an occult cause of gynecologic complaints. Young girls may have unusual small objects retained in the vagina, but in postmenarchal female patients, tampons are the most commonly retained objects. Depending on the object found, the possibility of sexual abuse must be a consideration, especially in young children or patients with psychiatric disorders.

Vaginal foreign bodies may result in chronic vaginal discharge, bleeding, or a foul-smelling odor due to inflammation and infection. Retained highly absorbent tampons may lead to the development of toxic shock syndrome.

Pelvic examination with a speculum or plain radiography is typically sufficient to confirm the location of the foreign body, but occasionally, the diagnosis may first be made with computed tomography (CT) (shown). Removal of the object usually leads to resolution of signs and symptoms, and no additional measures are generally required. If injury to the vaginal mucosa is suspected, treatment with antibiotics is typically sufficient for a full recovery.

Image courtesy of Lars Grimm, MD, MHS.

Foreign Bodies in the Gastrointestinal and Genitourinary Tracts: Interesting Images

Lars Grimm, MD, MHS | August 3, 2022 | Contributor Information

Obtaining an accurate history may be important for localizing a foreign body, especially when the object in question is of a more sensitive nature.

The pelvic radiograph (shown) demonstrates a vibrator that "slipped" into the vaginal vault during consensual sex. The radiograph alone would not be able to distinguish between the vaginal vault and the rectal vault. This device was successfully extracted in the ED at the bedside.

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