How is odontogenic Keratocyst diagnosed?
Diagnosis is usually radiological. However, definitive diagnosis is through biopsy. Aspirational biopsy of odontogenic keratocysts contains a greasy fluid which is pale in colour and contains keratotic squames. Protein content of cyst fluid below 4g% is diagnostic of odontogenic keratocysts.
What is odontogenic Keratocyst?
Introduction. Odontogenic keratocysts (OKCs), first described by Philipsen in 1956 [1], are benign intraosseous lesions of odontogenic origin that account for about 10% of jaw cysts. They are characterised by an aggressive behaviour with a relatively high recurrence rate [2].
Why OKC is known as primordial cyst?
The initial terminology for an odontogenic keratocyst (OKC) was “primordial cyst,” as the origin of the lesion was thought to be the tooth primordium.
How can you distinguish between ameloblastoma and odontogenic Keratocyst?
Most OKCs showed smooth border and unilocular shape, while most ameloblastomas showed scalloped border and multilocular shape. Compared with ameloblastomas, OKCs showed greater frequency to be associated with impacted tooth, and were unlikely to cause tooth displacement and root resorption.
How are Keratocysts treated?
Depending on other studies KCOT can be conservatively treated with enucleation and application of Carnoy’s solution or cryotherapy. This can be used specially in the large lesions that when treated with resection, the continuity of the jaw will be interrupted.
Is OKC a Tumour or cyst?
The odontogenic keratocyst (OKC) is an enigmatic developmental cyst that deserves special attention. It has characteristic histopathological and clinical features; but, what makes this cyst special is its aggressive behavior and high recurrence rate.
How is Keratocyst treated?
Is OKC cyst or tumor?
OKC is the one of the rare odontogenic cysts, which attracts many researchers due to its unique characteristics. OKC originates from the dental lamina remnants in the mandible and maxilla before odontogenesis is complete. It may also originate from the basal cells of overlying epithelium.
Why is OKC recurrence so high?
There are several possible reasons why OKC recur so frequently and require meticulous surgical planning and execution. The first of these is related to their tendency to multiplicity in some patients, including the occurrence of satellite cysts, which may be retained during an enucleation procedure.
How is odontogenic Keratocyst treatment?
Treatment of odontogenic keratocyst (OKC) is one of the highly controversial protocols among oral and maxillofacial surgeons. Treatment modalities range from simple enucleation in the case of lesions that are less than 1 cm to extensive resection in the case of cysts that extend into the skeletal base.
What is the difference between an OKC and an ameloblastoma?
Ameloblastoma is the most common odontogenic tumour characterized by expansion and a tendency for local recurrence. Odontogenic keratocyst (OKC) is an odontogenic cyst representing the third most common cyst of the jaws.
How is OKC and ameloblastoma difference?
Most OKCs showed smooth border (60%) and unilocular shape (82%), while most ameloblastomas showed scalloped border (77.2%) and multilocular shape (68.3%). Association with impacted tooth was found in 47% of OKCs and 18.8% of ameloblastomas.
Is Keratocyst cancerous?
The keratocystic odontogenic tumor is a benign developmental tumor with many distinguishing clinical and histologic features. These characteristics are reviewed in the setting of a typical presentation. The newly acknowledged neoplastic potential and its implications for treatment strategies are also discussed.
How fast does odontogenic Keratocyst grow?
Results: The growth rate of 8 recurrent cysts was 0.7 mm to 22.0 mm/year with average of 4.90 mm per year. Moreover, the growth rate of recurrent cysts in early postoperative period was much faster than those in late period, and no sclerotic margin was observed around the radiolucency areas.
Can Keratocystic odontogenic tumor recur?
The Keratocystic Odontogenic Tumor (KCOT) is characterized by its high tendency to recur after surgical treatment. This is attributed to its infiltrative growth pattern and to the failure during surgery to remove the epithelial rests of the dental lamina or the daughter cysts [1-4].
Who treats odontogenic Keratocyst?
How are odontogenic Keratocysts removed?
Odontogenic keratocysts can initially be treated with incisional biopsy and decompression by installing a polyethylene drain to allow subsequent reduction of the cystic cavity size, resulting in thickening of the capsule, which allows a later easy removal withapparently lower relapse rate (Waldron).
Is OKC a tumour or cyst?
Therefore, odontogenic keratocysts (OKCs) are now considered benign cysts of odontogenic origin that account for about 10% of all odontogenic cysts. OKCs arise from the dental lamina and are characterised by a cystic space containing desquamated keratin with a uniform lining of parakeratinised squamous epithelium.
Can odontogenic Keratocyst be cured?
Depending on other studies KCOT can be conservatively treated with enculation and application of Carnoy’s solution or cryotherapy. This can be used specially in the large lesions that when treated with resection, the continuity of the jaw will be interrupted.
Is OKC cancerous?
OKC is a benign, clinically significant cystic tumor of odontogenic origin.