solitary and interradicular RL Flashcards
Incisive Canal Cyst
Clinical
- Painless swelling
- Sinus tract may be present
Incisive Canal Cyst Radiographic app
- Unilocular radiolucency in vicinity of maxillary midline
- Cause alterations to walls of incisive canals
- Root divergence in cases of large cysts
incisive canal cyst
incisive canal cyst
is incisive canal cyst heart shaped
no, appears so due to superimposition of ant nasal spine
incisive canal cyst agression
typically not but can be in some cases with massive expansion (although often little change over time)
Incisive Canal Cyst age
4th to 6th decade
Incisive Canal Cyst site
maxilla close to midline
incisive canal cyst gender?
male 3:1 ratio
Incisive Canal Cyst tx
recurrence?
Simple enucleation; degree of surgery is
dependent on size of lesion
recurrence unusual
Median Mandibular Cyst
Clinical
Asymptomatic, extremely rare
Median Mandibular Cyst
Radiographic app
Unilocular radiolucency in the symphyseal region
Mid-Palatine Cyst
Clinical
Asymptomatic
Mid-Palatine Cyst
Radiographic app
- Unilocular radiolucency
- Palatal midline, posterior to papilla
Mid-Palatine Cyst
Age?
Site?
Gender?
Age: Any
Site: Midpalate posterior to papilla
Gender: No predilection
Mid-Palatine Cyst
Management
Simple enucleation; degree of surgery is
dependent on size of lesion
Lateral Periodontal Cyst
Clinical
Asymptomatic, dome-shaped swellings of the
interdental papilla, attached gingiva, or alveolar
mucosa.
Lateral Periodontal Cyst
Radiographic app
- Well defined radiolucency
- Round to ovoid
- Normally in inter-radicular areas between alveolar crest and apices
- May or may not come in contact with the root surface
lat perio cyst
lat perio cyst
Lateral Periodontal Cyst
Age
Site
Gender
Age: Adult
Site: Mandible – Canine–premolar region
Gender: Male
Lateral Periodontal Cyst
Management
Surgical enucleation
Lateral Periodontal Cyst
recurrence?
Must be differentiated from?
The cyst does not recur
Must be differentiated from early stage OKC’s
and ameloblastomas
traumatic bone cyst clinical
Normally asymptomatic, may have swelling or pain.
solitary bone cyst additional names
Unicameral Bone cyst
Solitary Bone Cyst*
Hemorrahgic Bone Cyst*
Intravasational Bone Cyst
Traumatic Bone Cyst *
Extravasational Bone Cyst
traumatic bone cyst radio app
Unilocular radiolucency with interradicular scalloped superior margins
Usually >10mm and associated with > 1 root apex
traumatic bone cyst
differential? (this class content only)
lat perio cyst
traumatic bone cyst
traumatic bone cyst aggressive lesions?
can be expansive
traumatic bone cyst age, site, gender
Age: Second decade, Usually <25 years; but not absolute
Site: Body and ramus of mandible
Gender: No predilection
solitary bone cyst tx
iniate bleeding
solitary bone cyst recurrence
rare
Posterior Lingual Mandibular
Salivary Gland Depression (stafne cyst)
clinical
Asymptomatic, usually found in routine
radiographic examinations
stafne cyst
Posterior Lingual Mandibular
Salivary Gland Depression
radio app
Well circumscribed posterior radiolucency in molar region between mandibular canal and inferior border
Posterior Lingual Mandibular
Salivary Gland Depression
Posterior Lingual Mandibular
Salivary Gland Depression
stafne cyst on PA
how could stafne cyst be confirmed
radio dye into whartons duct
Posterior Lingual Mandibular
Salivary Gland Depression age, site, gender
Age: Adults; prominent over 50 years
Site: Between the mandibular canal and inferior border
Gender: Almost exclusively male predilection
Posterior Lingual Mandibular
Salivary Gland Depression management
Positive diagnosis based on clincial and radiologic history negates the need for biopsy and histologic examination
Focal Osteoporotic Bone
Marrow Defect of the Jaws clinical symptoms
asymptomatic
Focal Osteoporotic Bone
Marrow Defect of the Jaws radio app
- Unilocular, faint radiolucency
- Not ragged but difficult to discern as a separate entity
- loss of trabeculae
focal osteoporotic bone defect
Focal Osteoporotic Bone Marrow Defect of the Jaws age, site, gender?
Age: All
Site: Mandible
Gender (Sex): Slightly higher in females but No
predominant gender
Focal Osteoporotic Bone
Marrow Defect of the Jaws management
no tx
Residual/Recurrent Cyst
Pathophysiology
Results from incomplete removal or residual viable epithelial cystic lining following treatment of a cyst
Previous history of periapical disease
Residual Cyst
Clinical
Asymptomatic, normally found on radiographic examinations of edentulous areas
Tooth or root may or may not be present
residual cyst radio app
- Well defined radiolucency with smooth, round, corticated borders
- Usually 5mm or less in diameter
- May not be any root present if tooth was previously
extracted
residual cyst age, site, gender
Age: Middle age or older
Site: More common in maxilla
Gender (Sex): More common in males
Residual/Recurrent Cyst
Management
(same as PA cyst)
Requires removal of the cyst lining
Enucleation if a large cyst
Fibrous Healing Defect (Apical Scar) Pathophysiology
- Develops after inflammation that affects the integrity of the periosteum
- Once disease is eradicated, the bone heals without a mineralized bony matrix
- Due to the loss of the periosteum, only fibrous connective tissue fills the site of the previous disease
fibrous healing defect Clinical
- Asymptomatic
- Noted in areas with a previous history of disease or trauma
Fibrous Healing Defect radio app
- Well circumscribed radiolucent lesion at site of previous surgery
- “punched out” or “see through” appearance
- May resemble residual cysts in edentulous areas but lack cortication
fibrous healing defect
Fibrous Healing Defect
(Apical Scar)
Management
No treatment indicated
A previous history of disease is critical in establishing the diagnosis
Neuroma, Neurofibroma
Clinical
- Expansion, pain, or paresthesia
- Symptoms include complaints of burning, tingling, and aching sensations
Neuroma, Neurofibroma radio app
- Well circumscribed radiolucency of various shapes
- In the mandible it usually forms in the mandibular canal
neuroma/neurofibroma
Other Radiolucencies…
Many other odontogenic and non-odontogenic
lesions may manifest as solitary “cyst-like” radiolucencies.
Examples:
Odontogenic
*Amelobastoma
*Central giant cell granuloma
*Cementoossifying fibroma (early stage)
Non-odontogenic
*Chronic localized Langerhans’ cell disease
*Myeloma
