Clinical and immunohistochemical analysis of diffuse tenosynovial giant cell tumour of the temporomandibular joint.
Int J Oral Maxillofac Surg
; 49(7): 882-888, 2020 Jul.
Article
in En
| MEDLINE
| ID: mdl-32014315
ABSTRACT
The objective of this study was to summarize diagnostic points and treatment strategies for diffuse tenosynovial giant cell tumours (D-TSGCTs) of the temporomandibular joint (TMJ), and to evaluate the expression of proteins related to bone destruction and recurrence. The clinical and histopathological characteristics of 24 cases were analysed retrospectively. TRAP staining and immunohistochemical staining for MMP-9, MMP-13, and Ki-67 were performed. The median age of the patients was 45.5 years; the female to male ratio was 1.71. In 11 cases (45.8%), skull base destruction seen on computed tomography was confirmed by surgery. Computer-assisted navigation was performed in six cases. Four patients received adjuvant radiotherapy after first surgery. Five patients had recurrent lesions. Multinucleated giant cells were positive for TRAP, MMP-9, and MMP-13. The average Ki-67 index of the recurrent cases was significantly higher than that of the non-recurrent ones (P<0.05). This study demonstrates the aggressive and recurrent nature of D-TSGCT occurring in the TMJ. Computer-assisted navigation is helpful to protect vital structures and determine margins. Adjuvant postoperative radiotherapy is recommended for local control of residual or recurrent tumour. In conclusion, MMP-9 and MMP-13 may play a role in bone destruction of D-TSGCT, and the Ki-67 index has predictive significance for recurrence.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Synovitis, Pigmented Villonodular
/
Giant Cell Tumor of Tendon Sheath
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Int J Oral Maxillofac Surg
Journal subject:
ODONTOLOGIA
Year:
2020
Document type:
Article
Affiliation country:
China