title: Role of FNAC in the diagnosis of intraosseous jaw lesions.
abstract: BACKGROUND
  FNAC of intraosseous jaw lesions has not been widely utilized for diagnosis due to rarity and diversity of these lesions, limited experience and lack of well established cytological features. Aim of the study was to determine the role of FNAC in the diagnosis of intraosseous jaw swellings.
  
  
  METHODS
  42 patients underwent FNAC over a period of 7 years (2007-2013), of which 37 (88.1%) aspirates were diagnostic. Histopathology correlation was available in 33 cases and diagnostic accuracy of FNAC was calculated.
  
  
  RESULTS
  Lesions were categorized into inflammatory 3, cysts/hamartomas 15 and neoplasms 19. Mandibular and maxillary involvement was seen in 21 and 16 patients respectively. Of these, benign cysts and malignant lesions were commonest, accounting for 27% lesions (10 cases) each. One case of cystic ameloblastoma was misdiagnosed as odontogenic cyst on cytology. Overall, sensitivity and specificity of FNAC were 94.7% and 100% respectively with a diagnostic accuracy of 97.3%. Definitive categorization of giant cell lesions, fibro-osseous lesions, odontogenic tumors and cystic lesions was not feasible on FNAC.
  
  
  CONCLUSIONS
  FNAC is a simple, safe and minimally invasive first line investigation which can render an accurate preoperative diagnosis of intraosseous jaw lesions, especially the malignant ones in the light of clinic-radiological correlation.
authors: Department of Pathology, University College of Medical Sciences & GTB Hospital, University of Delhi, Shahdara, Delhi-110095, India, sonald76@gmail.com.
authors: Surbhi
authors: S
authors: Goyal
authors: Sonal
authors: S
authors: Sharma
authors: Mrinalini
authors: M
authors: Kotru
authors: Neelima
authors: N
authors: Gupta
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D044963:Biopsy, Fine-Needle; D001847:Bone Diseases / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007571:Jaw Diseases / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies