Melanin and odontogenic cysts: An ambiguous yet imperative relation.

Pigmentation in the head-and-neck lesions is an uncommon feature. The presence of it is fascinating, but its relevance is unknown. Various odontogenic and nonodontogenic lesions show the presence of melanin pigment.

Classification staging systems on clinical and radiographic features of inverted sinonasal papilloma: A case report.

Inverted sinonasal papilloma is an infrequent tumor that mostly affects the elder group of 40-50 yr. This tumor is distinguished from other sinonasal tumors by three characteristics: a high rate of recurrence, carcinomatous changes, and a high potential for local destruction. In 40% of cases of inverted sinonasal papilloma showed an association with the human papillomavirus and considered as the main etiological agent.

The Current Understanding on Langerhans' Cells and Its Role in Oral Lesions.

Objective: Description of Langerhans' cells (LCs) as an important antigen-presenting cells responsible for detecting the antigens, recruiting T-cells, and thereby initiating the immune response. An adequate response of the mucosal immune system is essential to protect the mucosa against pathological conditions. Hence, a detailed review was planned about this unique antigen-presenting cell.

Odontogenic tumor markers - an overview.

Unlabelled: The practice of pathology is currently undergoing significant change, due to advances in the field of molecular pathology. Tumor markers are molecules that help the pathologists for confirmatory diagnosis of histopathologically confounding lesions. Odontogenic tumors are relatively rare with estimated incidence of less than 0.

Revelation in the field of tissue preservation - a preliminary study on natural formalin substitutes.

Introduction: The quest for formalin substitutes has long been going on due to its health hazards. Honey has been proven as a safe alternative to formalin. However, we explored more economical, eco-friendly & readily available substances like sugar & jaggery as natural substitutes for formalin.

Mineral oil--a biofriendly substitute for xylene in deparaffinization: a novel method.

Background: In routine histopathology, xylene has been used in tissue processing and staining. Presently health hazards of xylene are well documented and a safer substitute is an absolute necessity.

Aim: The present study was conducted to evaluate the efficacy of mineral oil as a deparaffinizing agent when compared to that of xylene by using hematoxylin and eosin (H&E) staining.

Analysis of tumor marker CA 125 in saliva of normal and oral squamous cell carcinoma patients: a comparative study.

Background: The mortality and morbidity associated with oral squamous cell carcinoma (OSCC) can be greatly reduced if tumor markers which can detect OSCC at an early stage are available. The use of saliva as an alternative to blood could provide a substantial advantage in sampling convenience. Cancer antigen 125 (CA 125) is a tumor-associated antigen found to be increased in epithelial tumors like oral, breast and ovarian cancers.