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WHO histological classification of tumours of odontogenic tumours



Check also:
WHO histological classification of tumours of the oral cavity and oropharynx

MALIGNANT TUMOURS
Odontogenic carcinomas
   Metastasizing (malignant) ameloblastoma 9310/3
   Ameloblastic carcinoma - primary type 9270/3
   Ameloblastic carcinoma - secondary type (dedifferentiated), 9270/3
   intraosseous
   Ameloblastic carcinoma - secondary type (dedifferentiated), 9270/3
   peripheral
   Primary intraosseous squamous cell carcinoma - solid 9270/3
   type
   Primary intraosseous squamous cell carcinoma derived 9270/3
   from keratocystic odontogenic tumour
   Primary intraosseous squamous cell carcinoma derived 9270/3
   from odontogenic cysts
   Clear cell odontogenic carcinoma 9341/3
   Ghost cell odontogenic carcinoma 9302/3
 
   Odontogenic sarcomas
   Ameloblastoma fibrosarcoma 9330/3
   Ameloblastic fibrodentino-and fibro-odontosarcoma 9290/3
 
BENIGN TUMOURS
Odontogenic epithelium with mature, fibrous stroma without odontogenic ectomesenchyme
   Ameloblastoma, solid/multicystic type 9310/0
   Ameloblastoma, extraosseous/peripheral type 9310/0
   Ameloblastoma, desmoplastic type 9310/0
   Ameloblastoma, unicystic type 9310/0
   Squamous odontogenic tumour 9312/0
   Calcifying epithelial odontogenic tumour 9340/0
   Adenomatoid odontogenic tumour 9300/0
   Keratocystic odontogenic tumour 9270/0
 
Odontogenic epithelium with odontogenic ectomesenchyme, with or without hard tissue formation
   Ameloblastic fibroma 9330/0
   Ameloblastic fibrodentinoma 9271/0
   Ameloblastic fibro-odontoma 9290/0
   Odontoma 9280/0
      Odontoma, complex type 9282/0
      Odontoma, compound type 9281/0
   Odontoameloblastoma 9311/0
   Calcifying cystic odontogenic tumour 9301/0
   Dentinogenic ghost cell tumour 9302/0
 
Mesenchyme and/or odontogenic ectomesenchyme with or without odontogenic epithelium
   Odontogenic fibroma 9321/0
   Odontogenic myxoma/myxofibroma 9320/0
   Cementoblastoma 9273/0
   
Bone-related lesions
   Ossifying fibroma 9262/0
   Fibrous dysplasia
   Osseous dysplasia
   Central giant cell lesion (granuloma)
   Cherubism
   Aneurysmal bone cyst
   Simple bone cyst
 
OTHER TUMOURS
Melanotic neuroectodermal tumour of infancy 9363/0



A digital manual for the early diagnosis of oral neoplasia, edited by Ramadas K., Lucas E., Thomas G., Mathew B., Balan A., Thara S., Sankaranarayanan R.



International Agency for Research on Cancer (IARC)

In collaboration with:
Regional Cancer Centre, Thiruvananthapuram, India (RCC)

ISBN: 978 92 832 2444 0



And endorsed by:

Association for International Cancer Research (AICR)


International Network for Cancer Treatment and Research (INCTR)


International Union against Cancer (UICC)


World Health Organization - Regional Office for Africa (WHO/AFRO)

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