Week 13 Flashcards
(14 cards)
What are the causes of diseases of bone?
Diseases of bone can result from inherited disorders, neoplasms, or fibro-osseous lesions.
What are Cemento-Osseous dysplasia and Paget’s disease?
They are benign lesions in bone.
What does ‘dysplasia’ refer to in cemento-osseous lesions?
‘Dysplasia’ refers to disorganized or abnormal tissue development, not a precancerous condition.
What is Periapical Cemento-Osseous Dysplasia (PCOD)?
A benign, asymptomatic fibro-osseous lesion affecting periapical bone, commonly found in the anterior mandible.
What is the cause of PCOD?
Unknown etiology; not a true neoplasm.
What are the appearances of PCOD in different stages?
Early stage: Well-circumscribed radiolucency resembling periapical pathology.
Intermediate stage: Mixture of radiolucency and radiopacity appearance due to increasing calcification.
Late stage: Dense radiopaque lesion with a thin radiolucent rim.
Who is most commonly affected by PCOD?
Most common in Black women over 30 years old (10:1 female predilection).
What is the impact of PCOD?
Usually asymptomatic and discovered incidentally on radiographs. Teeth remain vital unless affected by other pathology.
What is the treatment for PCOD?
No treatment necessary once diagnosed. Follow-up radiographs may be needed for early lesions to confirm diagnosis.
What is Focal Cemento-Osseous Dysplasia?
A benign, asymptomatic fibro-osseous lesion with distinct clinical and radiographic features, typically found in the posterior mandible.
What is the cause of Focal Cemento-Osseous Dysplasia?
Unknown etiology; not a true neoplasm. Shares microscopic features with periapical and florid cemento-osseous dysplasia.
What is the appearance of Focal Cemento-Osseous Dysplasia?
Isolated, well-delineated lesion (<1.5 cm), progressing from radiolucent to radiopaque. Most common in women aged 30-50, with higher prevalence in individuals of European descent.
What is the impact of Focal Cemento-Osseous Dysplasia?
Asymptomatic, discovered incidentally on radiographs. Requires biopsy for definitive diagnosis; has a gritty texture unlike central ossifying fibroma.
What is the treatment for Focal Cemento-Osseous Dysplasia?
No treatment necessary once diagnosed; excellent prognosis.
