Correlation Between Ultra-High Frequency Ultrasound (UHFUS) and Histological Features of Typical Lesions in Hidradenitis Suppurativa.

Objectives: Hidradenitis suppurativa (HS) is a chronic inflammatory disease affecting hair follicles, significantly impacting patients' quality of life. While clinical assessment remains the cornerstone of diagnosis and staging, ultrasound (US) has emerged as a valuable tool for disease evaluation, treatment guidance, and monitoring. The introduction of ultra-high frequency ultrasound (UHFUS) allowed for near in vivo histopathological examination of HS lesions.

Ultra-High Frequency Ultrasound (UHFUS) Features of Pyoderma Gangrenosum, Venous Leg Ulcers, and Acute Ulcerative Lesions.

Pyoderma gangrenosum (PG) is a neutrophilic dermatological disorder, marked by the dysregulation of both innate and adaptive immunity. Recently, non-invasive imaging techniques, including the use of Ultra-High Frequency Ultrasound (UHFUS), have been used to assess patients with PG. The primary objective of this study is to characterize the UHFUS differences among various cutaneous ulcerative diseases.

High-Frequency and Ultra-High-Frequency Ultrasound in Dermatologic Diseases and Aesthetic Medicine.

Dermatologic ultrasonography applications are rapidly growing in all skin fields. Thanks to very high spatial resolution, high-frequency and ultra-high-frequency ultrasound can evaluate smaller structures, allowing us to improve diagnosis accuracy and disease activity. Moreover, they can guide treatment, such as drug injection, and assess therapy efficacy and complications.

Correlation between skin cancer and therapy with anti-IL monoclonal antibodies in patients affected by moderate-to-severe psoriasis: an observational monocentric study.

Our study aimed to investigate the correlation between skin cancer and anti-interleukin (IL) therapy in patients with moderate-to-severe psoriasis. This was an observational monocentric study in which we enrolled a total of 235 patients in which 127 patients were affected by moderate-to-severe psoriasis and treated with anti-IL monoclonal antibodies (mAbs) for at least 6 months, whereas 108 patients affected by mild psoriasis were treated with topical therapies. Afterward, we performed a dermatologic visit to all the subjects, collecting anamnestic information including risk factors for skin cancer.

Enhancing Hidradenitis Suppurativa Assessment: The Role of Ultra-High Frequency Ultrasound in Detecting Microtunnels and Refining Disease Staging.

Introduction: Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease affecting hair follicles, causing recurrent abscesses and nodules in intertriginous regions. The International HS Severity Score System (IHS4) is widely used to assess HS severity by counting inflammatory nodules, abscesses, and draining fistulas/tunnels. However, traditional clinical examinations may underestimate HS severity due to the presence of subclinical lesions.

Evaluation of post-surgical complications of hidradenitis suppurativa lesions explored with presurgical ultra-high frequency ultrasound mapping.

Objective: Hidradenitis suppurativa (HS) is a chronic inflammatory disease of the hair follicle. Its treatment often requires a surgical approach. The aim of our study was to evaluate the occurrence of post-surgical complications following a new standard of surgical management.

Wound area severity index (WASI): A novel tool for assessing and predicting healing times in hidradenitis suppurativa postsurgical wounds.

Hidradenitis suppurativa (HS) presents challenges in management due to its chronic nature and high risk of recurrence. Post-surgical wound care plays a crucial role in treatment, even if standardized methods for assessing and predicting healing times are lacking. The aim of the study is to introduce the Wound Area Severity Index (WASI) as a novel tool to guide clinicians in assessing postsurgical wound progression and predicting potential healing times.

Presurgical Mapping With Ultra-high Frequency Ultrasound of Hidradenitis Suppurativa Lesions Treated With Wide Local Excision and Secondary Intention Healing.

Background: Hidradenitis suppurativa (HS) is a challenging chronic inflammatory condition often requiring surgical intervention, such as wide local excision. Preoperative mapping with ultra-high frequency ultrasound (UHFUS) enables detailed assessment of lesion extension, particularly identifying tunnels and fistulas, facilitating surgical planning.

Objective: This study aimed to analyze recurrence rates of HS lesions previously mapped with UHFUS and treated with wide excision and secondary intention healing.

Risankizumab as a Therapeutic Approach for Recalcitrant Pyoderma Gangrenosum.

Pyoderma gangrenosum (PG) is a neutrophilic dermatosis that is challenging to diagnose and treat. Clinicians frequently use fast-acting corticosteroids, which are subsequently combined with slower-acting immunosuppressants to progressively taper the corticosteroid dosage. Current research is focused on the use of monoclonal antibodies (mAbs) directed against target molecules involved in the pathogenesis of PG.

Advanced wound management approaches in Hidradenitis Suppurativa postsurgical lesions.

The most appropriate management of recurrent Hidradenitis Suppurativa (HS) lesions consists of wide surgical removal of the lesions with subsequent healing by second intention. Successful wound healing depends on the choice of an adequate wound dressing, targeted to the features of the wound.We enrolled 25 patients randomized into three groups according to the advanced dressing used in second intention healing of postsurgical wounds (standard therapy, an oxygen-enriched oil-based medical device with prolonged release of reactive oxygen species [ROS], ultra-portable negative pressure therapy).

The Role of Ultra-High-Frequency Ultrasound in Pyoderma Gangrenosum: New Insights in Pathophysiology and Diagnosis.

Pyoderma gangrenosum (PG) is a neutrophilic dermatological disease, whose pathogenesis is still poorly clarified. Because of the lack of validated criteria for diagnosis and response, PG treatment is still challenging and should be differentiated in the inflammatory and non-inflammatory phases. Our study aimed to provide a new semi-quantitative approach for PG diagnosis and monitoring, identifying ultra-high-frequency ultrasound (UHFUS) early biomarkers associated with the transition between the two phases.

Ultra-High-Frequency Ultrasound as an Innovative Imaging Evaluation of Hyaluronic Acid Filler in Nasolabial Folds.

Dermal hyaluronic acid (HA) fillers are used for nasolabial fold correction, but no study is still available on the use of ultra-high-frequency ultrasound (UHFUS) with 70 MHz probes for the evaluation of HA distribution and wrinkle amelioration. We selected 13 patients who received HA filler, evaluated before (Time (T) 0) and after injection (T1), and after 24 weeks (T2). The dermal thickness and distribution of HA were registered, as well as the Wrinkle Severity Rating Scale (WSRS), Global Aesthetic Improvement Scale (GAIS), and wrinkle 3D fullness.

Ultra-High Frequency UltraSound (UHFUS) Assessment of Barrier Function in Moderate-to-Severe Atopic Dermatitis during Dupilumab Treatment.

Atopic dermatitis (AD) is a chronic multifactorial inflammatory disease characterized by intense itching and inflammatory eczematous lesions. Biological disease-modifying drugs, such as dupilumab are recommended for patients with moderate-to-severe AD, refractory to systemic immunosuppressive therapies. Disease monitoring is performed by clinical scores.

Assessment and Monitoring of Nail Psoriasis with Ultra-High Frequency Ultrasound: Preliminary Results.

Psoriatic onychopathy is one of the clinical presentations of psoriasis and a well-known risk factor for the development of psoriatic arthritis. High-frequency ultrasounds (HFUS > 20 MHz) have recently been used to evaluate the nail apparatus of healthy and psoriatic subjects. The aim of our study was to detect by means of ultra-high-frequency ultrasound (UHFUS 70-100 MHz) alterations of the nail bed and matrix in patients with psoriatic onychopathy and to monitor these parameters during the treatment with monoclonal antibody (mAb).

Pyoderma gangrenosum in a patient with Dubowitz syndrome: a new comorbidity?

Introduction: Dubowitz syndrome is a rare genetic disease with only a few cases reported in the literature. It is characterized by growth retardation, microcephaly, facial dysmorphism and higher risk of developing cancer and cardiomyopathies. PG is an autoinflammatory disorder that causes painful ulcers to develop on the skin and has not been previously associated with Dubowitz syndrome.

Non-invasive imaging techniques in presurgical margin assessment of basal cell carcinoma: Current evidence.

Background: The diagnosis of basal cell carcinoma (BCC) is based on clinical and dermoscopical features. In uncertain cases, innovative imaging techniques, such as reflectance confocal microscopy (RCM) and optical coherence tomography (OCT), have been used. The main limitation of these techniques is the inability to study deep margins.

An Integrated Systemic and Local Wound Management in Recalcitrant Pyoderma Gangrenosum.

Pyoderma gangrenosum (PG) is a neutrophilic inflammatory dermatosis, whose management still represents a clinical challenge due to frequent unresponsive cases. The aim of our study was to evaluate the efficacy of a novel, combined approach including local wound management, based on the principle of PG-TIME and a systemic therapy with an anti interleukin (IL)-17A monoclonal antibody (mAb). We presented a case of a 37-year-old female patient, affected by multi-refractory PG.

Ultra-high frequency ultrasound for digital arteries: improving the characterization of vasculopathy in systemic sclerosis.

Objectives: To provide a full characterization of proper palmar digital arteries (PPDA) in systemic sclerosis (SSc) with ultra-high frequency ultrasound (UHFUS), and to investigate possible relationships between digital macroangiopathy and microangiopathy.

Methods: SSc patients without active digital ulcers and healthy controls (HC) were enrolled. Each subject underwent UHFUS 70 MHz evaluation of PPDA from II to V fingers bilaterally, searching for vessel occlusion and measuring the thickness of the three arterial layers and the systolic-diastolic excursion range.

Ultra-high frequency ultrasound detection of the dermo-epidermal junction: Its potential role in dermatology.

Traditional high-frequency ultrasound (HFUS; 20 MHz) is a non-invasive method used to study skin in vivo but is not able to measure skin thickness accurately and to identify the dermal-epidermal junction (DEJ). Ultra-high frequency ultrasound (UHFUS; 70-100 MHz) has sub-millimetre resolution comparable to histology. The aim of this study was to identify, by UHFUS, the DEJ and to describe skin differences in healthy individuals by providing a measure of skin thickness, based on age and gender.

Palliative management of a recurrent destructive cutaneous squamous cell carcinoma of the scalp with brain exposure.

Introduction: Squamous cell carcinoma (SCC) is the second most prevalent malignant skin carcinoma. Bone infiltration is uncommon, and invasion of the dura mater and brain parenchyma is rare and possible only in the advanced stages of the disease. Treatment of advanced SCC is challenging and often requires the collaboration of a multidisciplinary team to provide local and systemic treatment.