SL OMFX

Answer : Cemento osseous dysplasia Non-neoplastic fibro-osseous lesion Most common benign fibro-osseous lesion of the jaws Common in middle-aged black women 3 variants –based on anatomic location Periapical – Periapical –mandibular anterior teeth Focal COD – Single tooth Florid – Multiquadrent involvement  Asymptomatic – Accidental finding Associated with vital tooth Radiolucent, Radiodense or mixed – the periodontal ligament is intact Histopathology  Cellular fibrous stroma with areas of swirling(Spirelling) and loose collagen With mineralizing tissues consisting of osteoid, bone and cementum Osteoblastic rimming is rare Vascularity is pronounced-Blood within biopsied specimens No capsule Treatment: No treatment –Follow up for complication for osteomyelitis  Download the Oral Pathology Short cases clicking the following link Click Here

  Answer : Fibrous dysplasia Skeletal anomaly which normal bone is replaced and distorted by poorly organized and inadequately mineralized immature bone and fibrous tissue Single bone – Monostotic (Craniofacial fibrous dysplasia – monostotic variant) Multiple bone – Polyostotic fibrous dysplasia Multiple bone + multiple endocrine abnormalities – Mc cune Albrights syndrome  7 % of all benign tumours Disorder of growing bone in children and adolescents A missense mutation in GNAS gene – overexpression of cAMP – changes in properties of osteoprogenitor cells Milder forms affect few bones – craniofacial and femur  Maxilla > mandible Clinical –  Painless swelling of jawbones, Facial asymmetry First 2 decades of life Displacement of teeth, malocclusion  Paranasal sinuses, orbits and foramina of the base of the skull can produce – Visual loss, hearing loss, headache, nasal obstruction Radiology – Classic lesions show ground glass appearance  Table 4 Histopath...

  Answer : Oral lichen planus Varying degrees of orthokeratosis and parakeratosis may be present on the surface of the epithelium The thickness of the spinous layer can also vary.  The rete  ridges may be absent or hyperplastic, but they classically have a pointed or “saw-toothed” shape Destruction of the basal cell layer of the epithelium  (hydropic degeneration) is also evident.  This is accompanied  by an intense, bandlike infiltrate of predominantly T lymphocytes immediately subjacent to the epithelium Degenerating keratinocytes may be seen in the area of the epithelium and connective tissue interface and have been termed colloid, cytoid, hyaline, or Civatte bodies. Download the Oral Pathology Short cases clicking the following link Click Here