There are few reports in oral squamous cell carcinoma (OSCC) that indicate the expression of macrophage migration inhibitory factor (MIF) in tissues, serum, or saliva of patients with OSCC. The aim of this study was to evaluate the mRNA expression and protein of MIF in tissues and serum, respectively, in OSCC patients and its association with the TNM stage. A cross-sectional study was performed. Serum and tissues of 25 patients with OSCC and 25 healthy control subjects (HCS) were included to evaluate the MIF mRNA expression and protein serum levels by real-time PCR and ELISA, respectively. Serum MIF levels were significantly higher in OSCC compared with control subjects. Furthermore, in the OSCC group, MIF was significantly increased in accordance with tumor disease stage (TNM III–IV), as well as in poorly differentiated tumors. The mRNA showed significantly higher levels in HCS, as well as in more differentiated tumors. The results of this study suggest that MIF could be an indicator of severity and progression of OSCC. Further studies are required to explore the role of MIF as a serological biomarker for OSCC.
The amalgam tattoo or focal argyrosis, is an iatrogenic lesion that follows the traumatic implantation of amalgam particles in soft tissue or the passive transfer by chronic friction of the mucosa against an amalgam restoration is characterized by the deposit of remains of restorative material composed of a mixture of silver, mercury, zinc, tin and copper in the connective tissue. Objective to present the clinical case of a patient with amalgam tattoo and the treatment that was carried out prior to his dental rehabilitation. Methods we did adiagnostic and excisional biopsy of the pigmentated lesion Result, as a result of the biopsy, we found that amalgam tattoo with a granulomatous reaction to a foreign body. Conclusion: By means of an excisional biopsy, the diagnosis of the lesion observed in the patient was verified, thus resulting in an amalgam tattoo with a granulomatous reaction to a foreign body
This paper aimed to present a clinical case presenting an unusual periapical radiolucent lesion, its approach and treatment, and as an element of differential diagnosis in periapical pathology. Foreign body granuloma (FBG) is a tissue reaction that is triggered by the deposit of a foreign material affecting the skin and internal organs that the immune system tries to delimit and, if possible, eliminate. FBG may constitute a complication of a surgical procedure or a new pathology for the patient, which precedes an iatrogenic event causing diagnostic difficulties. This study presented an unusual periapical radiolucent lesion in a male patient with a periapical radiolucent area found in panoramic radiography; the lesion was enucleated, histopathologically confirming an FBG, which was the result of a biomaterial used in surgery for nasal polyps and deviated septum performed years before. This case shows us a very unusual presentation of an FBG within the maxillary bone after surgery for nasal polyps and deviated septum. The appropriate use of the available imaging tools and histopathological study and interpretation is emphasized, to be able to carry out a successful long-term treatment with the lowest chances of recurrence. In addition, an interdisciplinary approach is very important, which leads us to the comprehensive treatment of the patient. The proper use of diagnostic and imaging methods that we currently have, as well as knowledge of differential diagnoses, is essential to successfully diagnose and treat injuries in the maxillofacial area.
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