Hybrid neoplasm of the lacrimal gland, adenocarcinoma NOS with primary squamous cell carcinoma; A rare case report.

A hybrid neoplasm is the coexistence of two histologically distinct neoplasms which arise in the same topographical area resulting in a single common mass. A seventy-one-year-old female presented with a complaint of loss of vision and pain in her right eye for a period of five months. On clinical-radiological investigations, a single ovoid,non-fluctuant, firm, tender swelling was present on the right supraorbital region with mild proptosis and redness of the right eye.

Cystic Teratoma with Neuroectodermal Cyst and Choroid Plexus Like Epithelium, A Rare Entity in the Head and Neck: Case Report with Literature Review.

Cystic teratoma with neuroectodermal cyst and choroid plexus epithelium in the cheek has never been documented in the literature to date. We report the first example of a cystic teratoma with abundant neuroectodermal derivatives, like glial cells and papillary choroid plexus-like epithelium, within the masseteric space and with no intracranial involvement. A two-year-old male child presented with a complaint of a slowly growing swelling on the left side of the face since birth with no history of fever, fatigue or weight loss or other similar swellings elsewhere.

Immunohistochemical expression of p53/TP53 in histologically negative mucosal margins of head and neck squamous cell carcinomas and usefulness in predicting locoregional recurrence: A systematic review and meta-analysis.

Objective: To compare the expression of p53/TP53 in histologically negative mucosal margins of head and neck squamous cell carcinoma with locoregional recurrence.

Design: A complete search through MEDLINE by PubMed, Google Scholar, Scopus and EMBASE until 31st January 2023, without period restriction. Articles on head and neck squamous cell carcinoma and p53/TP53 expression were included.

Presence of Epstein-Barr Virus in Periapical Pathoses: A Systematic Review and Meta-Analysis.

Background: Periapical lesions, often arising from polymicrobial infections, exhibit varied clinical manifestations. The role of herpes viruses, particularly Epstein-Barr virus (EBV), in the etiopathogenesis of these conditions remains underexplored despite evidence that suggests its involvement in inflammatory processes.

Objective: This systematic review and meta-analysis aimed to evaluate the presence of EBV in periapical diseases and to assess its probable role in their etiopathogenesis.

The Mystifying Role of Mast Cells in the Pathogenesis of Periapical Pathologies - A Systematic Review.

Introduction: Oral periapical lesions present a significant global health burden, with their pathogenesis shrouded in complexity due to multifaceted mechanisms. Despite extensive research, the precise role of mast cells in their pathogenesis remains elusive. The present systematic review aimed to elucidate the mechanism of mast cells in the immunopathology of periapical lesions.

Platelet-Rich Fibrin (PRF) and its Application in Dentistry: A Literature Review.

Platelet-rich fibrin (PRF) is a biocompatible fibrin matrix that acts as a resorbable membrane, collecting platelet cytokines, growth factors, and cells and releasing them. It is easily extracted from blood. Many dentists use PRF, a concentrated growth factor solution, to treat various lesions and regenerate tooth and oral tissues.

Diagnostic Utility of Expression Pattern of S100/Mammaglobin/SOX10/DOG 1 Immunohistochemistry in Differentiation of Secretory and Acinic Cell Carcinoma: A Systematic Review and Meta-Analysis.

Secretory carcinoma (SC) is a relatively new disease entity, separate from acinic cell carcinoma (AciCC), which frequently displays ETV6-NTRK3 gene fusion. However, the differences between SC and AciCC remain ambiguous. Genetic diversity makes its diagnosis complicated.

Importance of radio-histo-cytopathological correlation, A retrospective study of cyto-histological and radiological correlation of salivary gland lesions using Milan System for Reporting Salivary Gland Cytopathology.

Background: Fine-needle aspiration cytology (FNAC) for salivary gland tumors can be challenging to due to the diversity of lesions and cytomorphological convergence between the tumors. The Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) was hence developed and introduced to provide enhanced communication in salivary gland cytopathology. To evaluate the diagnostic utility and validity of MSRSGC in combination with ancillary radiological investigations, we aim to find correlation between Milan system and the radiological impression comparing with final histopathological diagnosis.

Correlation of PD-1 and PD-L1 expression in oral leukoplakia and oral squamous cell carcinoma: an immunohistochemical study.

The programmed cell death protein (PD-1)/programmed cell death protein ligand (PD-L1) pathway and cytotoxic T lymphocyte antigen are the most important co-stimulatory molecules that play a key role in the negative regulation of T cells during carcinogenesis. We aimed to evaluate the immunohistochemical expression of PD-1 and PD-L1 in oral leukoplakia and squamous cell carcinoma compared with normal oral mucosa. Twenty-five cases of oral squamous cell carcinoma, oral leukoplakia and normal oral mucosa tissue specimens were immunohistochemically stained to assess PD-1 and PD-L1 expression.

Diagnostic Reliability of CRTC1/3::MAML2 Gene Fusion Transcripts in Discriminating Histologically Similar Intraosseous Mucoepidermoid Carcinoma from Glandular Odontogenic Cyst: A Systematic Review and Meta-analysis.

Background: Intraosseous mucoepidermoid carcinoma (IMEC) and Glandular odontogenic cyst (GOC) are those two pathological entities causing diagnostic dilemma due to the histopathological similarity. An accurate distinction between the two entities is difficult as both presents with a common radiological and histological similarities. The aim of our systematic review was to establish the diagnostic reliability of CRTC1/3::MAML2 gene fusion for the distinction between IMEC and GOC.

Diffuse Large B-Cell Lymphoma with pseudo Rosettes, A Rare Entity: Case Report with Literature Review.

Rosette formation is an unusual finding in malignant lymphomas. We report a case of a diffuse large B-cell lymphoma (DLBCL) with abundant rosette formation histologically mimicking non lymphoid tumors. A sixty-five-year-old female presented with a complaint of swelling on left side axillary region since a period of six months with no history of fever, fatigue or weight loss or other similar swellings elsewhere.

Broder versus Bryne's histologic grading parameters on incision biopsy specimens: A comparative study with P53 and KI67 expression.

Objective: Various histological grading of oral squamous cell carcinoma has been contributed to the literature at different periods, but the reliability of such grading systems is controversial. This study attempted to measure the efficacy of Bryne's parameters on the full thickness of incisional biopsies which are representative of the original lesion with the proven molecular malignancy markers P53 and Ki67.

Materials And Methods: One hundred incisional biopsy specimens of oral squamous cell carcinoma were obtained and histologically graded according to Broder's grading system.

Ghost cell odontogenic carcinoma of anterior mandible: A rare case report with review of literature.

A 24-year-old male reported to the outpatient department with a complaint of swelling of the anterior lower jaw region for 9 months with history of traumatic injury and extraction of teeth from the same region, a month before the onset of swelling. Swelling was obvious extra- and intraorally which on examination presented as a soft to firm non-tender and non-fluctuant mass with an approximate size of 4 cm × 3 cm, extending from 34 to 43 region with obliteration of labial vestibule. Panoramic radiograph and cone-beam computed tomography showed a well-defined radiolucency in the mandibular anterior region crossing the midline with erosion of labial bony plates and root of 42 along with a tooth-like radiopaque mass within the lesion.

Bucco-Parapharyngeal Occurrence of Pleomorphic Spindle Cell Lipoma-A Unique Entity: Case Report.

Lipomas are common benign neoplasms of oral region which occur scarcely in the parapharyngeal space (PPS). The diversity observed in its histologic presentation classified it into many subtypes among which Spindle Cell Lipoma (SCL) is a rare entity. SCL is an uncommon benign tumor of adipose tissue usually located superficially in the neck, back and shoulder region but its presentation in oral and pharyngeal spaces is very rare.

Association of SOX2, OCT4 and WNT5A Expression in Oral Epithelial Dysplasia and Oral Squamous Cell Carcinoma: An Immunohistochemical Study.

The cancer stem cells deliver uncontrolled proliferative capacity within the tumor imparting to increasing size while epithelial mesenchymal transition adds to the invasive potential. Studies using specific markers elucidating the role of these phenomena may bring advancement in the targeted therapy of tumor. SOX2 and OCT4 are two among few stem cell markers indicative of proliferative potential and WNT5A is an epithelial mesenchymal transition marker indicative of invasive potential.