Giant Osteosarcoma of the Mandible.

Osteosarcoma is a rare primary malignant bone tumor with considerable variations not only in clinical and histologic appearance, but also in the course and prognosis of the disease. It mainly occurs in the metaphyseal region of long bones. Jaw osteosarcomas are relatively rare as compared to those occurring in long bones and share similar histopathologic features, but biologically behave in a different manner.

Modified bisecting angle technique in eliminating zygomatic superimposition over apices of maxillary molars.

Background: Image superimposition is a part and parcel of two-dimensional radiography. However, some overlappings are a result of radiographic technique itself. The technique induced superimposition of zygomatic buttress on apices of maxillary molars is common in bisecting angle technique (BAT), which affects the endodontic performance.

Technetium-99m bone scan and panoramic radiography in detection of bone invasion by oral carcinoma.

Objective: The correct extension of cancer in the bone usually remains undetected on static imaging which may lead to inadequate or over excision. The conventional radiography as well as other anatomical imaging modalities like computed tomography, magnetic resonance imaging often fails to detect functional changes in the bone. However, bone scinitigraphy is highly sensitive in detecting earlier changes in the bone but lack anatomical definition.

Bone scintigraphy and panoramic radiography in deciding the extent of bone resection in benign jaw lesions.

Objective: To find out the value of correlating radiographic and scintigraphic imaging for defining the extent and nature of benign jaw lesions (BJL).

Material And Methods: Twenty patients with histologically proven benign lesions of the jaws were investigated pre-operatively by panoramic radiography (PR) and bone scintigraphy (BS). To test the efficacy of combination of these two imaging modalities, their results were compared with intra-operative and histopathological findings.

Botryoid odontogenic cyst developing from lateral periodontal cyst: A rare case and review on pathogenesis.

Botryoid odontogenic cyst (BOC) is considered to be a polycystic variant of the lateral periodontal cyst (LPC) as the specimen resembled a cluster of grapes. It is a non-inflammatory odontogenic cyst. The BOCs can be unicystic or multicystic.

Localization of a Peripheral Residual Cyst: Diagnostic Role of CT Scan.

The term residual cyst is used most often for retained radicular cyst from teeth that has been removed. Residual cysts are among most common cysts of the jaws. The location of all odontogenic cysts is usually intraosseous.