ABSTRACT
AIM: To evaluate the effect of additional enamel etching on the shear bond strength of three self-etch adhesives. METHODS: Class II box type cavities were made on extracted human molars. Teeth were randomly divided into one control group of etch and rinse adhesive and three test groups of self-etch adhesives (Clearfil S3 Bond, Futurabond NR, Xeno V). The teeth in the control group (n = 10) were treated with Adper™ Single Bond 2. The three test groups were further divided into two subgroups (n = 10): (i) self-etch adhesive was applied as per the manufacturer's instructions; (ii) additional etching of enamel surfaces was done prior to the application of self-etch adhesives. All cavities were restored with Filtek Z250. After thermocycling, shear bond strength was evaluated using a Universal testing machine. Data were analyzed using anova independent sample's 't' test and Dunnett's test. The failure modes were evaluated with a stereomicroscope at a magnification of 10×. RESULTS: Additional phosphoric acid etching of the enamel surface prior to the application of the adhesive system significantly increased the shear bond strength of all the examined self-etch adhesives. CONCLUSIONS: Additional phosphoric acid etching of enamel surface significantly improved the shear bond strength.
Subject(s)
Acid Etching, Dental/methods , Dental Bonding , Dental Enamel/ultrastructure , Resin Cements/chemistry , Composite Resins/chemistry , Dental Cements/chemistry , Dental Materials/chemistry , Dental Polishing/methods , Dental Stress Analysis/instrumentation , Dentin-Bonding Agents/chemistry , Humans , Materials Testing , Methacrylates/chemistry , Microscopy, Electron, Scanning , Phosphoric Acids/chemistry , Shear Strength , Stress, Mechanical , Surface Properties , Temperature , Time Factors , Water/chemistryABSTRACT
Leiomyosarcoma of the breast is a rare neoplasm, primarily reported in older women. Only 44 cases have been reported in world literature and to the best of our knowledge, no case has been reported from India till date. We report a case of primary breast leiomyosarcoma in an adolescent girl who underwent a lumpectomy for rapidly increasing lump in the left breast. Here we report the histological findings and immunohistochemical profile of this entity, along with a review of existing literature.
ABSTRACT
Virus associated hemophagocytic syndrome is a non-neoplastic, generalized histiocytic proliferation with prominent hemophagocytosis associated with a systemic viral infection. We report a case of cytomegalovirus (CMV) associated hemophagocytic syndrome in a 2 month old male child presenting with rashes, fever, hepatosplenomegaly, cervical lymphadenopathy and pancytopenia. Fine needle aspiration cytology and biopsy from cervical lymph nodes revealed prominent hemophagocytosis. Serology for CMV IgM was positive in both the mother and the child, suggesting recent infection. Possibly there was intrauterine transmission of the infection.
ABSTRACT
BACKGROUND: Adult rhabdomyoma (ARh) is a rare, benign tumor originating in striated muscle cells. Ninety-three percent of the tumors occur in the head and neck region and sometimes mimic malignant tumors clinically. The preoperative correct diagnosis of this tumor is important as it can help in deciding on management. CASES: We report two cases of ARh diagnosed by fine needle aspiration cytology (FNAC). Case 1 was a 43-year-old male who presented with a recurrent tumor in the region of the floor of the mouth. Case 2 was a 37-year-old male who presented with soft tissue swellings in bilateral submandibular regions. On cytology in both cases, the smears showed numerous large tissue fragments of tumor cells, which were large, polygonal cells with abundant, vacuolated cytoplasm and bland, eccentrically placed nuclei. Characteristic cross-striation and intracytoplasmic inclusions were not conspicuous on cytosmears. However, a primary cytodiagnosis of ARh could be offered based on characteristic morphologic features. CONCLUSION: ARh has characteristic cytomorphologic features, which are described in detail in the present report, and they can help in diagnosing this tumor on FNAC.
Subject(s)
Mandibular Neoplasms/diagnosis , Mandibular Neoplasms/pathology , Mouth Neoplasms/diagnosis , Mouth Neoplasms/pathology , Rhabdomyoma/diagnosis , Rhabdomyoma/pathology , Adult , Biopsy, Fine-Needle , Humans , Magnetic Resonance Imaging , Male , Mandible/pathology , Mandibular Neoplasms/diagnostic imaging , Mouth/pathology , Mouth Neoplasms/diagnostic imaging , Rhabdomyoma/diagnostic imaging , Tomography, X-Ray ComputedABSTRACT
Thyrolipoma or adenolipoma of the thyroid gland is defined as a thyroid adenoma containing mature fat tissue. It is a rare encapsulated lesion. A case of a 35-year-old female presenting with swelling in the neck that was diagnosed as adenolipoma is described because of its extreme rarity.
