Dissecting cellulitis of the scalp (DCS) is a rare inflammatory condition that progresses from papules and pustules to nodules and abscesses, ultimately leading to cicatricial alopecia. It primarily affects African men between the ages of 15 and 62, with exceptionally low prevalence in children. A milder form, described as \"alopecic and aseptic nodules of the scalp\" (AANS), presents as aseptic nodules associated with non-scarring alopecia and has a good prognosis. We report two atypical cases of DCS in Hispanic pediatric patients: an 18-month-old female infant and an 11-year-old male child who had a rapid and favorable clinical resolution consistent with AANS.

Favus is an uncommon chronic inflammatory dermatophyte infection of the scalp. Predominantly, a disease of childhood, uncommon reports of adult cases are described. For the most part, this infection is characterised by invasion of hair shaft clinically presenting as yellowish scaly plaques, alopecia and/or inflammatory lesions. We hereby present an immunocompetent adult presenting with a psoriasiform plaque over glabella, culturally referred to as \'bindi\' area. No involvement of the scalp or other hair-borne areas was seen. As she did not agree to undergo a skin biopsy, a last resort of simple stains like potassium hydroxide was done confirming favus. Systemic itraconazole was initiated and complete clinical and mycological resolution was seen with no relapse. Such atypical presentations in adults can cause a diagnostic dilemma and simple stains still hold their ground in making a diagnosis in resource-poor settings.

Angiolymphoid hyperplasia with eosinophilia (ALHE) is a rare, benign, vasoproliferative tumour. We report a 25-year-old female patient who reported in 2021 to a dermatology clinic in Rustaq, Oman, with multiple, grouped, erythematous dome-shaped papules and nodules of 6 months duration on the left temporo-occipital region. Biopsy findings were consistent with a diagnosis of ALHE with evidence of Demodex mite infestation in the sebaceous ducts. The patient demonstrated significant improvement following 7 weeks of treatment with multiple cryotherapy sessions and topical application of metronidazole gel. This case suggests that scalp demodicosis may represent a novel trigger for the development of ALHE.

暂无摘要。

OBJECTIVE: Approximately 50 million people worldwide have epilepsy and 8-17% of the deaths in patients with epilepsy are attributed to sudden unexpected death in epilepsy (SUDEP). The goal of the present work was to establish a biomarker for SUDEP so that preventive treatment can be instituted.
METHODS: Seizure activity in patients with SUDEP and non-SUDEP was analyzed, specifically, the scalp EEG extracted muscle activity (SMA) and the average wavelet phase coherence (WPC) during seizures was computed for two frequency ranges (1-12 Hz, 13-30 Hz) to identify differences between the two groups.
RESULTS: Ictal SMA in SUDEP patients showed a statistically higher average WPC value when compared to non-SUDEP patients for both frequency ranges. Area under curve for a cross-validated logistic classifier was 81%.
CONCLUSIONS: Average WPC of ictal SMA is a candidate biomarker for early detection of SUDEP.

Through phase-amplitude analysis, this study investigated how low-frequency postural fluctuations interact with high-frequency scalp electroencephalography (EEG) amplitudes, shedding light on age-related mechanic differences in balance control during uneven surface navigation. Twenty young ( 24.1 ± 1.9 years) and twenty older adults ( 66.2 ± 2.7 years) stood on a training stabilometer with visual guidance, while their scalp EEG and stabilometer plate movements were monitored. In addition to analyzing the dynamics of the postural fluctuation phase, phase-amplitude coupling (PAC) for postural fluctuations below 2 Hz and within EEG sub-bands (theta: 4-7 Hz, alpha: 8-12 Hz, beta: 13-35 Hz) was calculated. The results indicated that older adults exhibited significantly larger postural fluctuation amplitudes(p <0.001) and lower mean frequencies of the postural fluctuation phase ( p = 0.005 ) than young adults. The PAC between postural fluctuation and theta EEG (FCz and bilateral temporal-parietal-occipital area), as well as that between postural fluctuation and alpha EEG oscillation, was lower in older adults than in young adults (p <0.05). In contrast, the PAC between the phase of postural fluctuation and beta EEG oscillation, particularly in C3 ( p=0.006 ), was higher in older adults than in young adults. In summary, the postural fluctuation phase and phase-amplitude coupling between postural fluctuation and EEG are sensitive indicators of the age-related decline in postural adjustments, reflecting less flexible motor state transitions and adaptive changes in error monitoring and visuospatial attention.

Studies have shown that motor-cognitive dual task can greatly improve motor/cognitive function. However, the therapeutic effect of motor-cognitive dual task is still limited. How to improve dual-task performance is the key to solving this problem. Scalp acupuncture is a non-drug intervention method of traditional Chinese medicine to treat brain-derived diseases by acupuncturing the corresponding projection area of cerebral cortex function on the scalp. Studies have shown that scalp acupuncture helps improve neuronal damage and cognitive dysfunction and plays a neuroprotective function in central nervous system diseases. However, no relevant studies have discussed the synergistic gain effect of motor-cognitive dual task and scalp acupuncture. Therefore, this protocol aims to demonstrate the standardized operation of scalp acupuncture synchronizing motor-cognitive dual task and motor-cognitive dual task and compares the differences between these two tasks in healthy subjects through a randomized cross-over trial. This protocol initially revealed the possible influence mechanism of scalp acupuncture synchronizing motor-cognitive dual task on cognitive performance, gait control, and cortical brain function, which can provide new ideas and a theoretical basis for clinical exploration of new and effective non-drug treatment of integrated Chinese and Western medicine.

暂无摘要。

BACKGROUND: Hair transplantation is a widely performed cosmetic procedure for hair restoration. While generally safe, it carries the risk of complications, including recipient site necrosis (RSN). RSN is a rare but serious complication. This study aims to conduct a detailed analysis of 18 patients who had necrosis in the recipient area after hair transplantation.
METHODS: A retrospective review of medical records was conducted on 18 consulted patients who developed RSN following hair transplantation between 2017 and 2023. Data collected included patient demographics, medical history, surgical details, treatment modalities, and outcomes. Treatment involved surgical intervention (debridement), and conservative measures (wound care) in all cases.
RESULTS: The mean age of patients was 36.06 years (range: 22-48). The most common risk factors identified were smoking 66.7% (n = 10), hypertension 20% (n = 3), and diabetes mellitus 13.3% (n = 2). All patients (n = 18) underwent single-session hair transplantation using the follicular unit excision technique, and an average of 3899.44 ± 93.76 follicular units were transplanted. Outcomes such as scarring and graft failure occurred in all patients.
CONCLUSIONS: The presented study is the largest complication series in the literature. RSN is a rare but significant complication of hair transplantation. Identifying and managing risk factors, such as smoking, diabetes and hypertension, is crucial for prevention. Early recognition and prompt treatment are essential for optimal outcomes. While conservative management is often successful, surgical intervention may be necessary in severe cases.
METHODS: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

We describe an elderly patient presenting with pneumothorax, cystic lung disease and a scalp lesion. The pneumothorax resolved after placing a chest tube and suction but recurred within a week. Progression of cystic features was also seen, and biopsies of the lung and scalp lesions were performed. Immunohistochemistry was positive for markers of endothelial cells (CD31 and ERG) and negative for markers expected to be positive in alveolar cells (keratin AE1/AE3 and TTF-1), supporting the diagnosis of metastatic angiosarcoma. Palliative chemotherapy did not prevent progression and the patient expired soon after. In describing the clinico-radiological correlation of metastatic angiosarcoma, we also briefly describe the approach to cystic lung disease. Understanding the pathophysiology of cyst formation in metastatic angiosarcoma may help clinicians to better appreciate and manage the full spectrum of cystic lung disease, especially with atypical features.