Browsing by Author "Bajracharya, D"
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Publication A Recurrent Case of Ameloblastic Fibroma in 37-year Old Male(Kathmandu University, 2023) Maharjan, N; Bajracharya, D; Ojha, B; Bhandari, P; Koju, SABSTRACT Ameloblastic fibroma (AF) is a benign mixed epithelial and mesenchymal odontogenic tumor. This was previously grouped in odontogenic tumor showing odontogenic epithelium with odontogenic ectomesenchyme, with or without hard tissue formation. This report describes a case of ameloblastic fibroma in a 37-year- old male who came with the complain of swelling in the left side of lower jaw since one year. Enucleation of the mass followed by reconstruction was done six years back. However, after two years of initial treatment; radiographic findings suggested recurrence. Histopathological examination confirmed the diagnosis of ameloblastic fibroma. Patient had no clinical and radiographic evidence of recurrence in three and six months’ follow-up. Because of the higher proliferative capacity and malignant degree of the mesenchymal component in the recurrent neoplasm, sarcomatous transformation may occur. Hence, a long term clinical and radiographical follow-up is essential due to its transformation into ameloblastic fibrosarcoma. KEY WORDS Ameloblastic, Benign, Recurrence, Fibroma, TumorsPublication Assessment of Sexual Dimorphism in Mandibular Ramus: An Orthopanoramic Study(Kathmandu University, 2021) Koju, S; Maharjan, N; Rajak, RRK; Yadav, DK; Bajracharya, D; Ojha, BABSTRACT Background Mandible is the largest and strongest bone of the face, is very durable, and hence remains well preserved than many other bones. In cases of mass disasters where an intact skull is not found, the mandible may play a vital role in sex determination as it is the most dimorphic bone of the skull. Morphometric analysis of mandibular ramus provides highly accurate data to discriminate sex. This can be accomplished by the use of panoramic radiography which is widely available and is used routinely to assess the mandibular structures. Objective To evaluate and compare the various parameters of the mandibular ramus and to determine the usefulness of the mandibular ramus as an aid in sex determination. Method Orthopantomograms of 140 samples (70 males and 70 females) were collected from the archives and traced manually on matte acetate tracing paper. Various parameters of mandibular ramus were measured on the right and left sides. The obtained measurements were subjected to discriminant function analysis. Result Mandibular measurements on the right side were greater than on the left side. However, only the ramus breath (minimum and maximum) and projective height of ramus were statistically significant (p < 0.05). All the measurements were higher for males than females. F-statistic values indicated that the highest sexual dimorphism was seen with the projective height of ramus and least with minimum ramus breath. Conclusion Mandibular ramus measurements can be a useful tool for gender determination and can be an essential tool in forensic science especially when there is damaged or partially preserved mandibles and may be helpful for medico-legal purpose in Nepal. KEY WORDS Dimorphism, Discriminant analysis, Gender, Mandible, Panoramic, RamusPublication Eosinophilic Granuloma of Mandible: A Diagnostic Challenge(Kathmandu University, 2018) Bajracharya, B; Poudel, P; Bajracharya, D; Bhattacharyya, S; Shakya, PABSTRACT Eosinophilic Granuloma is the mildest and localized form of Langerhans Cell Histiocytosis and is characterized by clonal proliferation of Langerhans cells. It is a rare disease, accounting for less than 1% of all the osseous neoplasms. It has predilection for the axial skeleton and incidence in jaws is just 7.9%. It lacks pathognomonic clinical and radiographic trait and hence is difficult to make a correct diagnosis without histopathological and immunohistochemical examination. This report describes a case of Eosinophilic Granuloma of mandible in 30 years old male who presented with complain of unhealed extraction wound and was clinically diagnosed as chronic suppurative osteomyelitis. The final diagnosis of Eosinophilic Granuloma was made only after histopathological and immunohistochemical evaluations. KEY WORDS Eosinophilic granuloma, Immunohistochemistry, Langerhans cell histiocytosis