19 research outputs found
Deneysel kemik defektlerine uygulanan iki farklı membranın kemik ve çevre doku üzerine olan etkilerinin histopatolojik yönden değerlendirilmesi
Longterm follow-up of a patient with iris leiomyoma treated with partial lamellar iridocyclectomy
Angiomatoid fibrous histiocytoma: Report of three cases with cytological and histological features
Adenomatoid Odontogenic Tumor: A case report of a seldom seen lesion in the mandible
Abstr ID 660 519
ADENOMATOID ODONTOGENIC TUMOR:
A CASE REPORT OF A SELDOM SEEN LESION
IN THE MANDIBLE
S Firat*1
, bilgic bilge2
, K Zamira1, D Misten2
, K Ayfer1
1
Istanbul University, Faculty of Dentistry,
Department of Oral Surgery;
2
Istanbul University, Medical Faculty,
Department of Pathology, Istanbul University,
Faculty of Dentistry, Istanbul, Tu¨rkey
E-mail: [email protected]
The adenomatoid odontogenic tumors (AOT) make up
only 3% of odontogenic tumors. This tumor is a slow
growing benign bony lesion of the jaws mostly diagnosed in
the second decade of life and there is a female bias in
occurrence. Clinically silent, it is often noticed either during
routine radiological examinations or by a deformity in the
jaws. It originates from epithelial cells of the dental lamina
complex or its remnants. Frequently, there is a tooth
embedded in the tumor, which most likely is a canine. The
tumor is more likely to be found in the maxilla than the
mandible. The treatment consists of simple conservative
surgical removal of the tumor. Recurrence is uncommon. A
case of an adenomatoid odontogenic tumor (AOT)
associated with an impacted tooth located in the anterior
mandible of a 16-year old male patient is presented.
Clinically, there was a missing lower canine and the
adjacent teeth were bent towards the missing tooth’s
anatomical place. The radiological examinations showed
a well-defined radiolucent lesion about 2.5 cm and 2.0 cm
and 1.5 cm in size and associated with an impacted
tooth. The lesion and the impacted tooth were removed
under local anesthesia. Histopathological examination
revealed whorls of ovoid-spindle shaped tumoral cells.
Within these areas, there were adenoid structures, lined by
cuboidal cells. These cells were pozitive for cytokeratinantigen. A homogeneous eosinophilic material was observed in the stroma. Kongo reaction was negative. Focally,
solid epithelial islands containing calcification were
also seen. No recurrence was observed at the 6-months
follow-up.
Keywords: Odontogenic tumors; Mandible; Dental lamina
complexEACMFS – Abstracts, XVII Congress 2004 25
Acral myxoinflammatory fibrablastic sarcoma: Report of six cases
Acral myxoinfl a minatory fibroblastic sarcoma was first described in 1998. The tumor typically involves distal extremities; especially fingers and toes. It is usually located in subcutaneous tissue. The age range is broad (mean age 40). The size of tumor varies between 1-8 cm. Microscopically, itnyxold and hyaline zones are characteristic. Inflammatory cells are abundant and there are large cells resembling Reed Sternberg or ganglion cells and multi yactoilated cells having lipoblast-like appearance
ADENOMATOID ODONTOGENIC TUMOR ASSOCIATED WITH CALCIFYING EPITHELIAL ODONTOGENIC TUMOR: A CASE REPORT
Adenomatoid Odontogenic Tumors (AOT) make up 3% of all odontogenic tumors. The most conspieuous feature of this tumor is nodules or wholes of spindle-shaped of cuboidal epithelial cells. Within these cellular areas, ductiform structures formed by cuboidal or low columnar cells may be identified. Between the epithelial cells, there apear some focl of calcification mimieing cellular featurs of Calcifying Epithelial Odontogenic Tumor (CEOT). However, combination of cellular features of these two different odontonogenic tumors is a very rare finding. Here, a case of a so-called Combined Epithelial Odontogenic Tumor, associated with an impacted mandibular canine, is presented in a 16 year-old white male. Under local anesthesia, the tumor and the tooth were removed. The histopathological examination revealed that the tumor to be consisting primarily of AOT with some areas of CEOT. Healing was uneventful No recurrence was detected at two years time period