Uncommon foreign body reactions occurring in the lip: clinical misdiagnosis and the use of special techniques of analysis.
This study reports three interesting cases of nodular submucosal lip lesions where foreign-body reactions of unknown origin were detected on hematoxylin and eosin (H&E) analysis. These materials were evaluated under polarized light microscopy, scanning electron microscopy and by energy dispersive X-ray analysis. The results revealed the following materials: an interdental toothbrush bristle, silica, and iron. Unusual mucosal foreign body reaction cases have been reported, but few publications used special techniques to identify the specific foreign material. Clinicians and pathologists might consider these techniques for identifying the precise origin of these foreign bodies.
Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, São Paulo, Brazil. adrielefg@yahoo.com.br
Adriele Ferreira
AF
Gouvêa
João Adolfo Costa
JA
Hanemann
Alessandro Antonio Costa
AA
Pereira
Ana Carolina Prado
AC
Ribeiro
Mário José
MJ
Romañach
Jacks
J
Jorge
Pablo Agustin
PA
Vargas
D000328:Adult; D000368:Aged; D003951:Diagnostic Errors; D005260:Female; D005547:Foreign Bodies / Q000150:complications*; D005549:Foreign-Body Reaction / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D007501:Iron / Q000009:adverse effects; D008046:Lip / Q000473:pathology*; D008297:Male; D008855:Microscopy, Electron, Scanning; D008859:Microscopy, Polarization; D008875:Middle Aged; D012468:Salivary Gland Neoplasms; D012822:Silicon Dioxide / Q000009:adverse effects; D013052:Spectrometry, X-Ray Emission
D012822:Silicon Dioxide; D007501:Iron