Assessing the Quality of Long-Term Stored Tissues in Formalin and in Paraffin-Embedded Blocks for Histopathological Analysis.

Introduction: Formalin is the most commonly used fixative which enables for long-term storage of specimens and preserves morphologic features allowing the microscopic evaluation for future research analysis. Archival collections of the tissue serve as a reliable tool for diagnostic research purpose. They have an important role in on-going patient care, allows for evaluation of recurrent cases for diagnostic purpose and rare case specimens can also be used as an educational tool as well as for further biomedical research purposes.

Comparison of staining adequacy between tissues stored in formalin and paraffin embedded blocks for prolonged duration.

Introduction: Tissues submitted for histopathological diagnoses are routinely fixed in formaldehyde fixative which facilitates tissue storage for the extended period of time for further investigation or research purpose. The literature has reliable data relating to immunohistochemistry and molecular studies done using tissue fixed in formalin for longer duration and in paraffin-embedded tissue blocks. We have attempted to evaluate staining adequacy of archival specimens using hematoxylin and eosin (H&E) and trichrome stains.

Morphological analysis of various rugae patterns among Dravidian population.

Aim: The aim of this study was to analyze and identify differences in the palatal rugae patterns and genderwise distributions in three different populations (Kerala, Mahe and Puducherry).

Materials And Methods: Ninety maxillary study models (30 from each group including males and females) were examined in the age group ranging from 18 to 25 years. The palatal rugae pattern was analyzed for shape.

Association of enamel-renal syndrome with sialolith: A rare entity.

Amelogenesis imperfecta (AI) is a disease primarily affecting amelogenesis, but other various aberrations have been reported in association with this entity. Enamel-renal syndrome (ERS) is a very rare disorder associating AI with nephrocalcinosis. It is known by various synonyms such as AI nephrocalcinosis syndrome, MacGibbon syndrome, Lubinsky syndrome and Lubinsky-MacGibbon syndrome.

Hemangiolymphangioma of buccal mucosa: A rare case report.

Vascular anomalies are mainly classified under two headings, i.e. under vascular tumors and vascular malformations.

Mucormycosis causing maxillary osteomyelitis.

Mucormycosis is an opportunistic fungal infection, more commonly observed in immunocompromised patients. The mode of infection is via the inhalation route and infection begins initially in the nose and paranasal sinuses with subsequent invasion into the vascular tissue, eventually leading to thrombosis and necrosis of nearby hard and soft tissues. Here, we report a case of chronic osteomyelitis of the maxillary bone with fungal infection (mucormycosis) and extensive tissue necrosis in an uncontrolled diabetes mellitus patient.

Predentin thickness analysis in developing and developed permanent teeth.

Background: Predentin, the unmineralized organic matrix is important in maintaining the integrity of dentin. It is usually thick where active dentinogenesis occurs. A wide variation in its thickness is reported.

Dimensional and morphological analysis of various rugae patterns in Kerala (South India) sample population: A cross-sectional study.

Background: Analysis of palatal rugae patterns, which are similar to fingerprints, is one of the techniques used in forensic sciences for human identification. As palatal rugae patterns are genetically determined, they can also be used in population differentiation and gender determination. Hence, we aimed to record the distribution of the predominant rugae pattern in Kerala population.

Granularity in granular cell ameloblastoma.

Granular cell ameloblastoma (GCA) is one of the rare histological variants of ameloblastoma (1.5-3.5%), identified by Krompechner in 1918 and is diagnosed by the characteristic presence of granular cells.

Analysis of prevalence and clinical features of multicystic ameloblastoma and its histological subtypes in South Indian sample population: A retrospective study over 13 years.

Objective: The study was designed to analyze the frequency and clinical features of multicystic ameloblastoma and its histological variants in South Indian sample population, as there is minute information available in the English literature.

Methodology: The study source was the biopsy specimens retrieved from the archives of the Department of Oral and Maxillofacial Pathology, College of Dental Sciences, Davangere, Karnataka, India, during the past 13 years, from 2001 to 2013. Clinical data for the study were obtained from the case records of patients and the analyzed clinical variables were age, gender and anatomical location.

Prevalence and clinicopathological comparison of kerotocystic odontogenic tumor and orthokeratinized odontogenic cyst in South Indian sample population: A retrospective study over 13 years.

Aim And Methodology: The purpose of this study is to determine the prevalence of keratocystic odontogenic tumor (KCOT) and orthokeratinized odontogenic cyst (OOC), to identify their clinicopathological features among the patients by studying the biopsy specimens obtained from the archives of the Department of Oral and Maxillofacial Pathology, College of Dental Sciences, Davangere, Karnataka, India during the period of 2001-2013. Data for this study is retrieved from the case records of the patients fitting the histological classification of the World Health Organization (2005). The following clinical variables, namely age, gender, anatomical location, and histological features are analyzed.

Morphological alterations in the dentition of type I diabetes mellitus patients.

Introduction: Type 1 diabetes mellitus (DM) is an endocrine disorder that occurs commonly in an age group, where the development of primary and permanent dentition takes place. As altered endocrine functions may affect the shape and size of teeth leading to dental anomalies, this study was conducted to look for the occurrence of any dental anomalies in type I DM patients.

Materials And Methods: A diabetic camp was conducted at Alur Chandrashekharappa Memorial Hospital, Davangere, where 30 diabetic patients were examined and the impressions of their maxillary and mandibular arches were recorded.

Analysis of 153 cases of odontogenic cysts in a South Indian sample population: a retrospective study over a decade.

The purpose of this study was to determine the prevalence of odontogenic cysts and to identify their clinico-pathological features among patients by studying biopsy specimens obtained from the archives of the Department of Oral and Maxillofacial Pathology, College of Dental Sciences, Davangere, Karnataka, India, during the past 10 years. Data for the study were retrieved from the case records of patients fitting the histological classification of the World Health Organization (1992). Analyzed clinical variables included age, gender, anatomical location, and histological diagnosis.