15 research outputs found
Diagnostically Challenging Epithelial Odontogenic Tumors: A Selective Review of 7 Jawbone Lesions
Considerable variation in the clinicopathologic presentation of epithelial odontogenic tumors can sometimes be confusing and increase the chance of misdiagnosis. Seven diagnostically challenging jawbone lesions are described. There were 2 cases of mistaken identity in our ameloblastoma file. One unicystic type, initially diagnosed and treated as a lateral periodontal cyst, showed destructive recurrence 6 years postoperatively. The other globulomaxillary lesion was managed under the erroneous diagnosis of adenomatoid odontogenic tumor and recurred 4 times over an 11-year period. This tumor was found in retrospect to be consistent with an adenoid ameloblastoma with dentinoid. The diagnosis of cystic squamous odontogenic tumor (SOT) occurring as a radicular lesion of an impacted lower third molar was one of exclusion. Of two unsuspected keratocystic odontogenic tumors, one depicted deceptive features of pericoronitis, while the other case has long been in our files with the diagnosis of globulomaxillary SOT. Two cases of primary intraosseous squamous cell carcinoma appeared benign clinically and exhibited unexpected findings; an impacted third molar began to erupt in association with the growth of carcinoma and another periradicular carcinoma showed dentinoid formation. Cases selectively reviewed in this article present challenging problems which require clinical and radiographic correlation to avoid potential diagnostic pitfalls
Double dens invaginatus in an impacted molariform supernumerary tooth: An unique case
Dens invaginatus is a relatively rare developmental anomaly affecting usually the permanent maxillary lateral incisor. Various factors have been put forward regarding its pathogenesis. Involvement of crown/root has been reported as the coronal and radicular variety of dens invaginatus. One of the rarest variant is the Double dens invaginatus and only a few cases have been reported in the literature.This article focuses on a case of double dens invaginatus in an impacted maxillary anterior supernumerary tooth, the associated complications and its managemen
Dual Palladium-Photoredox-Mediated Regioselective Acylation of Carbazoles and Indolines
We have described a dual palladium-photoredox-catalyzed
highly
regioselective acylation of carbazoles and indolines using molecular
oxygen as the green oxidant. The reaction shows a broad substrate
scope and good functional group tolerance. Late-stage functionalization
of a carprofen drug derivative, further manipulation of products,
and gram-scale synthesis of the acylated products were illustrated
to show the versatility of the method
Primary Intraosseous Carcinoma with Nodal Metastasis Masquerading as Ameloblastom—A Rare Case Report
Case Report: Primary Squamous Cell Carcinoma of a Tarsal Bone
We describe a rare case of primary squamous cell carcinoma of the cuneiform bone of the foot in a 57-year-old man. In the appendicular skeleton, epithelial carcinomas of bone are usually metastatic deposits, primary squamous cell carcinomas of bone being found more frequently in the skull. A review of the English literature revealed only two other reported cases of primary squamous cell carcinoma outside the skull—one in the ilium and one in the tibia. In our patient, extensive metastatic workup and monitoring during more than 2 years showed no primary focus, supporting the rare presentation of a primary squamous cell carcinoma of bone in the appendicular skeleton
Anthropometric study of the external ear and its applicability in sex identification: assessed in an Indian sample
Analysis of Genetic Diversity of Saccharum Complex Using Chloroplast Microsatellite Markers
An Aggressive Solitary Fibrous Tumor with Evidence of Malignancy: A Rare Case Report
Solitary fibrous tumor (SFT) is rare mesenchymal neoplasm that has been originally and most often documented in the pleura. Recently, the ubiquitous nature of the SFT has been recognized with reports of involvement of numerous sites all over the body, i.e, upper respiratory tract, breast, somatic tissue, mediastinum, head, and neck, etc. The diagnosis of SFT still remains an enigma in our field. Furthermore, malignant SFT is extremely rare and only two cases have been reported in the oral cavity till date. Here, we present a rare case report of an aggressive solitary fibrous tumor which presented as a palatal mass and extended throughout the middle cranial fossa and exhibited features of malignancy