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Impacted supernumerary tooth in the horizontal plate of palatine bone: a rare case report.
BMC Oral Health
December 2024
Nepalese Army Institute of Health Sciences, College of Medicine, Kathmandu, Nepal.
Background: Supernumerary teeth, defined as extra teeth beyond the normal series of dentition, can appear anywhere in the dental arch. They may present as solitary or multiple, unilateral or bilateral, and can be either erupted or impacted. Rarely, supernumerary teeth are found in ectopic locations outside the dental arches, such as the nasal cavity, inferior nasal conchae, maxillary sinus, ethmoid sinus, or skull.
View Article and Find Full Text PDFEctopic olfactory neuroblastoma is associated with increased frequency of syndrome of inappropriate antidiuretic hormone secretion and reduced disease control: Case series with systematic review and pooled analysis.
Int Forum Allergy Rhinol
December 2024
Section of Otorhinolaryngology-Head and Neck Surgery, Department of Neuroscience, University of Padova, Padova, Italy.
Introduction: Olfactory neuroblastoma (ONB) is a rare malignant tumor originating from the olfactory neuroepithelium, typically within the sinonasal cavity. Cases of ONB originating outside of the olfactory cleft area are extremely rare and are referred to as "ectopic" (eONB), in contrast to "orthotopic" tumors (oONB). ONB has been associated with paraneoplastic syndromes (PNSs), including the syndrome of inappropriate antidiuretic hormone secretion (SIADH).
View Article and Find Full Text PDFEctopic Cervical Thymus in Adult: An Incidental Finding.
Indian J Otolaryngol Head Neck Surg
October 2024
Department of Pathology and Lab Medicine, All India Institute of Medical Sciences (AIIMS), Raipur, CG India.
Thymus is a paired organ which develops during the sixth week of fetal life, attains maximum size by three years and involutes in adult life. Anatomically it is situated in superior mediastinum. Thymus can be present at ectopic sites like neck, skull base, middle ear, submandibular gland and tonsil.
View Article and Find Full Text PDFEctopic Dental Canal: A Case Report Highlighting a Unique Bifid Mandibular Canal Variant.
J Endod
December 2024
Department of Surgical and Diagnostic Sciences, Marquette University School of Dentistry, Milwaukee, Wisconsin, USA.
Bifid mandibular canals are common anatomical findings with variations based on direction and location of branching, which carry significant clinical implications for endodontic and surgical dental procedures. This case report describes a previously unreported ectopic dental canal that branches off the superior border of the mandibular canal, enters the apex of a mandibular second molar, traverses through the root, anastomoses with the root canal system, and subsequently exits through the lingual aspect of the root. The anastomosis of this ectopic dental canal with the mesial lingual canal led to significant bleeding during rotary instrumentation.
View Article and Find Full Text PDFJawbone periosteum-derived cells with high osteogenic potential controlled by R-spondin 3.
FASEB J
October 2024
State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China.
The jawbone periosteum, the easily accessible tissue responding to bone repair, has been overlooked in the recent development of cell therapy for jawbone defect reconstruction. Therefore, this study aimed to elucidate the in vitro and in vivo biological characteristics of jawbone periosteum-derived cells (jb-PDCs). For this purpose, we harvested the jb-PDCs from 8-week-old C57BL/6 mice.
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