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Case Reports
. 2019 Nov 29:25:100261.
doi: 10.1016/j.tcr.2019.100261. eCollection 2020 Feb.

Oral cyst-like nodule caused by a long standing unusual embedded foreign object: Report of a case

Shokoufeh Shahrabi-Farahani  1 , Saede Atarbashi-Moghadam  2 , Ali Lotfi  3 , Fazele Atarbashi-Moghadam  4
Affiliations
Case Reports

Oral cyst-like nodule caused by a long standing unusual embedded foreign object: Report of a case

Shokoufeh Shahrabi-Farahani et al. Trauma Case Rep. .

Erratum in

Abstract

Traumatic implantation of foreign material in the oral mucosa is unusual and may occur. In this article, we report the presence of an unusual foreign object associated with a cyst-like inflammatory response in a 50-year-old male. The patient presented with a painless recurrent soft tissue swelling in the anterior vestibule of maxilla of at least 2-year duration. The lesion was surgically excised and a retained shrapnel-like object within a cyst-like and thick-walled structure was obtained. Histopathologically, the cyst-like structure exhibited a lymphohistiocytic infiltrate in the wall and a luminal synovial metaplasia-like change, predominantly composed of histiocytes. Immunohistochemical stain of CD163 highlighted the histiocytes. The patient stated a history of traumatic implantation of shrapnel fragments in the area that occurred 30 years ago due to an explosion in the Iran-Iraq war.

Keywords: Cyst-like, shrapnel; Foreign material; Oral mucosa; Synovial metaplasia.

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Figures

Fig. 1
Fig. 1
The patient presents with a well-defined nodule covered by intact mucosa in the anterior maxillary vestibule; extending to the upper lip mucosa.
Fig. 2
Fig. 2
Panradiograph showing a well-defined, and metal-like radiopaque object in the anterior maxillary region.
Fig. 3a
Fig. 3a
Gross image showing a cystic-like structure with the retrieved dark silver-gray shrapnel-like object.
Fig. 3b
Fig. 3b
Photomicrograph showing a cystic space surrounded by an inflamed and fibrous connective tissue with hemorrhage (H & E, ×20).
Fig. 3c
Fig. 3c
Photomicrograph showing a chronically inflamed fibrous wall showing luminal synovial-like lining (H & E, ×100).
Fig. 3d
Fig. 3d
Photomicrograph showing CD163 immunoreactivity of the histiocytes in the luminal surface and the fibrous wall (immunohistochemistry, ×100).
See this image and copyright information in PMC

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