Anatomical variations of the marginal mandibular nerve.

Introduction: The Marginal Mandibular Nerve (MMN), despite being didactically described as being a unique branch of the other branches of the Facial Nerve, has in practice an abundant anatomical variation. Both in relation to its ramifications and the positioning of these in relation to the lower edge of the mandible, as well as its anastomoses along its path, play a fundamental role in the surgical strategy during the approach of this cervicofacial site, and can generate, as underestimated its characteristics, inadvertent injuries and motor consequences to the patient.

Objective: To analyze the types of anatomical variations of the MMN in relation to its position, ramification, and distance from reference points, as well as its incidence that could imply technical difficulties in surgery.

Psychosocial Impact of Facial Paralysis Following Neck Dissection: A Literature Review.

Facial paralysis, a common complication of neck dissection due to facial nerve injuries, results not only in the loss of facial mimicry but also significantly affects patients' quality of life, particularly in terms of psychosocial perception - an aspect often overlooked by medical teams. This study aims to evaluate the psychosocial impact and perceptions of patients who developed lower third facial paralysis following marginal mandibular nerve injury during neck dissection. A total of 445 postoperative patients who underwent head and neck tumor resection with neck dissection were assessed, of which 217 experienced some degree of facial paralysis.

Perineural Invasion as Worsening Criterion for Salivary Gland Mucoepidermoid Carcinoma.

Mucoepidermoid carcinomas (MECs) are a form of salivary gland malignancy. They are classified according to histological grade and perineural invasion (PNI). In another cancer subtypes, positive-PNI suggests increased poor prognosis; however, the role of isolated positive-PNI salivary gland MEC can still be better investigated as a risk factor.

Labial metastasis of renal neoplasia - A diagnostic challenge.

Introduction: Cutaneous spread of solid visceral metastasis is very unusual presentation, usually in breast, lung, colon, ovarian carcinomas, and malignant melanoma. Less than 5% of cases of cutaneous spread are from renal neoplasms.

Presentation Of Case: We present the case of a 48-year-old woman with a large lower lip tumor whose anatomopathological analysis of the lesion led us to identify a Clear Cell Renal Cell Carcinoma (ccRCC).

A case of oncogenic osteomalacia owing to inguinal tumor.

The oncogenic hypophosphatemic osteomalacia is a very incapacitating disease and the mortality rate, mainly due to metabolic disorder, depends on the early diagnosis, since the surgery is curative. The major difficulty is to consider this kind of disease in patients with complex clinical presentation. Moreover, medical centers have to provide a good diagnostic infrastructure because these tumors, in most cases, are small and do not have an obvious site.

Apocrine sweat gland adenocarcinoma: A rare case report and review.

Introduction: Primary apocrine sweat gland carcinoma (PASGC) is an extremely rare neoplasia whose management and treatment are still evolving. The only curative therapy is wide local excision. Many patients have metastasis at the time of the diagnosis, mainly because this neoplasm has been misdiagnosed as some benign skin lesions.

Oncogenic hypophosphatemic osteomalacia: From the first signal of disease to the first signal of healthy.

Introduction: The physical incapacitation of the oncogenic hypophosphatemic osteomalacia (OHO) can be catastrophic and can lead to deformities, metabolic and organic instability and death. The only positive outcome is through early diagnosis by the clinical suspicion. At this moment, medical center infrastructure is also a keypoint.

Does the patient selection with MELD score improve short-term survival in liver transplantation?

Introduction: The Model for End-Stage Liver Disease (MELD) score introduced in 2002 has come to improve selection of patients dying in the liver transplantation waiting list.

Objective: To evaluate the short-term survival in liver transplantation around the world when MELD score was applied as selection criteria. METHODS - A review has been done at the online database PubMed/ Medline/Scielo.