DOI: http://dx.doi.org/10.18203/2349-3933.ijam20192058

Spectrum of imaging findings in trans-gastric migration of accidently ingested metallic foreign bodies

Arshed Hussain Parry, Mohammad Saleem Dar, Abdul Haseeb Wani, Tariq Ahmad Gojwari, Irfan Robbani

Abstract


Background: An accidently ingested foreign body may get lodged within the lumen of gastrointestinal tract, pass uneventfully with feces or may migrate extraluminally into the surrounding tissues in which case it may lead to suppurative or vascular complications. The aim of the endeavor was to study the spectrum of imaging findings in patients with accidental ingestion of foreign bodies with trans-gastric migration of metallic foreign bodies.

Methods: Total 33 patients with history of accidental ingestion of foreign bodies were subjected to preliminary radiograph of neck, chest and abdomen followed by upper gastrointestinal endoscopy. Failure to retrieve/ localize foreign body endoscopically from upper gastrointestinal tract with check radiograph reiterating the presence of foreign body in upper abdomen were subjected to computed tomography of abdomen.

Results: A total of 33 patients comprising of 27 females and 6 males with mean age of 23.76 years with history of foreign body ingestion were studied. Ingested foreign bodies were lodged in pharynx (n=7), esophagus (n=3), stomach (n=13) or duodenum (n=3).  In 7 patients in whom endoscopy failed to locate and/or retrieve foreign body, computed tomography confirmed the presence of trans-gastrically migrated foreign body in the surrounding structures. The location of migrated foreign bodies was in lesser sac (n = 2), greater omentum (n = 3), lesser omentum (n = 1) and transmural (n = 1). Two patients had evidence of collection formation around the migrated foreign bodies.

Conclusions: Sharp or pointed metallic foreign bodies may migrate trans-luminally with various implications. Though radiography is the preliminary workhorse for the confirmation of ingested foreign bodies, computed tomography owing to its volumetric data acquisition helps in exact localization of migrated foreign bodies and should precede any therapeutic intervention for retrieval of migrated foreign bodies.

Keywords


Computed tomography, Metal foreign body, Radio-opacity, Radiographic visibility, Trans-gastric migration

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