Autofluorescence imaging in recurrent oral squamous cell carcinoma.
The survival of patients with oral cancer is decreased by locoregional recurrence after an initial multimodal treatment. In order to identify lesions in the oral cavity for a possible recurrence, clinical evaluation as well as MRI or CT scanning is advised. The evaluation of mucosa lesions is hampered by changes related to radio- and chemotherapy as well as reconstruction with tissue flaps. Several techniques for easier identification of tissue abnormalities in the oral cavity have been advocated as adjuncts in order to facilitate identification. Especially methods using altered tissue fluorescence have gained much interest during the last decade. The aim of our prospective study was to evaluate fluorescence properties of undiagnosed mucosa lesions with the VELscope device in patients with multimodal treated oral cancer prior to histological confirmation. In total, 41 patients with a history of oral squamous cell carcinomas (OSCC) (19 females and 22 males) with undiagnosed mucosa lesions where included in the study. After clinical evaluation, examination and documentation using the VELscope® device were performed. Then, an incisional biopsy was performed. An autofluorescence loss indicating a malignant or dysplastic mucosa condition could be detected in six patients (14.6 %); however, only one OSCC and one SIN revealed a complete autofluorescence loss. In four patients, OSCC was present in lesions with retained autofluorescence. Sensitivity and specificity for the VELscope® examination to identify malignant oral lesions by autofluorescence were 33.3 and 88.6 %, respectively. The positive and negative predictive values were 33.3 and 88.6 %, respectively. No statistical correlation between gender and lesion appearance versus autofluorescence loss could be detected. In contrast to mucosa lesions in patients with no prior treatment, the autofluorescence evaluation with the VELscope reveals no additional information in our analysis. Accordingly, invasive biopsies as gold standard are still needed to get sufficient evidence regarding potential malignancy in patients after multimodal treatment for oral cancer.
Department for Oral and Craniomaxillo and Facial Plastic Surgery, Johannes Wesling Klinikum Minden, Hans-Nolte-Str. 1, 32429, Minden, Germany. martin.scheer@muehlenkreiskliniken.de.
Martin
M
Scheer
Department for Oral and Craniomaxillo and Facial Plastic Surgery, University of Cologne, Cologne, Germany.
Juliana
J
Fuss
Department for Oral and Craniomaxillo and Facial Plastic Surgery, University of Cologne, Cologne, Germany.
Mehmet Ali
MA
Derman
Department for Oral and Craniomaxillo and Facial Plastic Surgery, University of Cologne, Cologne, Germany.
Matthias
M
Kreppel
Dental Private Practice, Bayer, Kistler, Elbertzhagen and Colleagues, Landsberg am Lech, Germany.
Jörg
J
Neugebauer
Department for Oral and Craniomaxillo and Facial Plastic Surgery, University of Cologne, Cologne, Germany.
Daniel
D
Rothamel
Department of Pathology, University of Cologne, Cologne, Germany.
Uta
U
Drebber
Department for Oral and Craniomaxillo and Facial Plastic Surgery, University of Cologne, Cologne, Germany.
Joachim E
JE
Zoeller
D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology / Q000628:therapy; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology / Q000628:therapy; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology / Q000628:therapy; D009367:Neoplasm Staging; D061848:Optical Imaging; D016019:Survival Analysis; D014057:Tomography, X-Ray Computed
Autofluorescence; Locoregional recurrence; Oral cancer; Prognosis