Head and neck reconstruction in vessel-depleted necks: Case report of a labio-mental and mandibular reconstruction using an arteriovenous loop.

Major defects of the facial structures cause severe functional and esthetic impairment. Difficulty in head and neck reconstruction lies in cases of secondary, tertiary, or further reconstruction. This is not a rare situation for patients who had cancer of the upper airways, since the rate of recurrence, second location, or osteoradionecrosis is high.

Prevalence of comorbidities and concomitant medication use in acromegaly: analysis of real-world data from the United States.

Purpose: Patients receiving treatment for acromegaly often experience significant associated comorbidities for which they are prescribed additional medications. We aimed to determine the real-world prevalence of comorbidities and concomitant medications in patients with acromegaly, and to investigate the association between frequency of comorbidities and number of concomitantly prescribed medications.

Methods: Administrative claims data were obtained from the IBM® MarketScan® database for a cohort of patients with acromegaly, identified by relevant diagnosis codes and acromegaly treatments, and a matched control cohort of patients without acromegaly from January 2010 through April 2020.

Decoding Activity in Broca's Area Predicts the Occurrence of Auditory Hallucinations Across Subjects.

Background: Functional magnetic resonance imaging (fMRI) capture aims at detecting auditory-verbal hallucinations (AVHs) from continuously recorded brain activity. Establishing efficient capture methods with low computational cost that easily generalize between patients remains a key objective in precision psychiatry. To address this issue, we developed a novel automatized fMRI-capture procedure for AVHs in patients with schizophrenia (SCZ).

Posterior auricular artery helix root free flap-part II: clinical application.

The surgical repair of full-thickness defects involving the alae nasi is complex. Pedicle flaps such as frontal and nasolabial flaps can be used, but require several interventions with different techniques. In contrast, free flaps from the foot of the ear helix allow the three layers of the nasal wings to be reconstructed in a single operation.

Posterior auricular artery helix root free flap-part I: radio-anatomical study.

Full-thickness defects of the distal nose are an ongoing surgical challenge. Among the available techniques, pre-auricular chondrocutaneous free flaps based on the superficial temporal artery (STA) have good aesthetic and functional outcomes. However they often require autologous venous grafts.

Transverse Facial Artery Perforators: Anatomical, Two- and Three-Dimensional Radiographic Study.

Background: Increased anatomical knowledge of skin vascularization, such as the recent description of angiosome and perforasome concepts, has led to important innovations in flap surgery. In this sense, few studies have been performed on face vascularization especially for facial artery perforasomes. The aim of this study was to analyze the number, size, and localization of transverse facial artery perforators and their perfusion area.

Decreased Cortical Thickness in the Anterior Cingulate Cortex in Adults with Autism.

Autism spectrum disorder (ASD) is a developmental disorder underdiagnosed in adults. To date, no consistent evidence of alterations in brain structure has been reported in adults with ASD and few studies were conducted at that age. We analyzed structural magnetic resonance imaging data from 167 high functioning adults with ASD and 195 controls.

Identifying a neuroanatomical signature of schizophrenia, reproducible across sites and stages, using machine learning with structured sparsity.

Objective: Structural MRI (sMRI) increasingly offers insight into abnormalities inherent to schizophrenia. Previous machine learning applications suggest that individual classification is feasible and reliable and, however, is focused on the predictive performance of the clinical status in cross-sectional designs, which has limited biological perspectives. Moreover, most studies depend on relatively small cohorts or single recruiting site.

Unusual cystic lesion of the eyebrow: A case report of malignant chondroid syringoma.

Introduction: Malignant chondroid syringomas, also known as cutaneous malignant mixed tumors, are rare neoplasms that most frequently occur on the torso or extremities of women. Here, we present an illustrated case of a facial malignant chondroid syringoma.

Materials And Methods: A 32-year-old female patient with no notable medical history presented with an approximately 1cm-wide, painless, palpably-mobile subcutaneous nodule, suggestive of a sebaceous cyst, just above the middle third of the right eyebrow.

Prediction of activation patterns preceding hallucinations in patients with schizophrenia using machine learning with structured sparsity.

Despite significant progress in the field, the detection of fMRI signal changes during hallucinatory events remains difficult and time-consuming. This article first proposes a machine-learning algorithm to automatically identify resting-state fMRI periods that precede hallucinations versus periods that do not. When applied to whole-brain fMRI data, state-of-the-art classification methods, such as support vector machines (SVM), yield dense solutions that are difficult to interpret.

Structured Sparse Principal Components Analysis With the TV-Elastic Net Penalty.

Principal component analysis (PCA) is an exploratory tool widely used in data analysis to uncover the dominant patterns of variability within a population. Despite its ability to represent a data set in a low-dimensional space, PCA's interpretability remains limited. Indeed, the components produced by PCA are often noisy or exhibit no visually meaningful patterns.

White matter abnormalities in mild traumatic brain injury with and without post-traumatic stress disorder: a subject-specific diffusion tensor imaging study.

Mild traumatic brain injuries (mTBIs) are often associated with posttraumatic stress disorder (PTSD). In cases of chronic mTBI, accurate diagnosis can be challenging due to the overlapping symptoms this condition shares with PTSD. Furthermore, mTBIs are heterogeneous and not easily observed using conventional neuroimaging tools, despite the fact that diffuse axonal injuries are the most common injury.

How accurate is the treatment of midfacial fractures by a specific navigation system integrating "mirroring" computational planning? Beyond mere average difference analysis.

Purpose: To evaluate the accuracy of a specific navigation system integrating "mirroring" computational planning in the treatment of midfacial fractures by comparing planned with actual postoperative 3-dimensional (3D) images.

Patients And Methods: Preoperative planned and postoperative 3D computed tomographic (CT) and cone-beam CT (CBCT) images of 20 patients with midfacial fractures were analyzed. Images were fused using dedicated software (iPlan Cranial 2.

Anatomic and histological study of the rabbit mandible as an experimental model for wound healing and surgical therapies.

The rabbit is one of the most widely used models for studying bone remodeling or dental implant osseointegration but very few data are available about the rabbit's mandible. The aim of this work was to describe the anatomy of the rabbit mandible and to estimate the available bone volume for experimental studies. First, with a dissection, the morphology of the mandible was described and the mental foramen, the position of the main salivary glands and muscular insertions were located.

[Pre-implantation bone graft coffering technique for posterior mandibular edentulism: between onlay grafting and regeneration].

Background: Pre-implant placement posterior mandibular bone grafts remain a challenge for maxillofacial surgeons. We present a coffering technique we prefer using in this localization.

Surgical Procedure: This original technique involves creating a sagittal mandibular groove in which a graft harvested from the retromolar region is wedged vertically, after being sharpened in a bone mill.

[Eagle syndrome: a rare and atypical pain!].

The styloid process projects down and forward from the inferior surface of the petrous bone. It arises from the second branchial arch. Its average length ranges from 22 to 33 mm.