Dupilumab treatment of trichothiodystrophy in a child.

Trichothiodystrophy (TTD) is a rare congenital disorder caused by genetic mutations, leading to hair and skin abnormalities. We report successful treatment of a TTD case using dupilumab, a monoclonal antibody targeting IL-4Rα. The patient, a 7-year-old boy, exhibited significant improvement in skin and hair conditions, suggesting the potential of dupilumab as a therapeutic option for TTD. Further research is needed to elucidate its mechanism and efficacy in TTD treatment.

Dupilumab-Associated Blepharoconjunctivitis: Clinical and Morphological Aspects.

PURPOSE: To describe the clinical and morphologic changes in the ocular surface microstructure of patients affected with moderate-to-severe Atopic Dermatitis (AD) before and during Dupilumab treatment. METHODS: This is a monocentric observational study on thirty-three patients affected with AD before and during Dupilumab treatment. All patients underwent a slit-lamp examination: complete clinical assessment, Break Up Time test (BUT), Schirmer test, and corneal staining grading (Oxford scale) were performed. Meibomian Glands Dysfunction (MGD) evaluation (Meibography), Non-invasive Keratograph Break Up Time test (NIKBUT), Tear Meniscus Height (TMH), and ocular Redness Score (RS) have been investigated using an OCULUS Keratograph. In vivo images of the conjunctiva, cornea, and meibomian glands have been acquired by confocal microscopy. RESULTS: Sixty-six eyes were included in our study: twenty-two eyes of 11 naive patients with indication for treatment but not in therapy yet (Group 1) and forty-four eyes of 22 patients treated with Dupilumab for at least 4 months (subcutaneous administration of 300 mg every 2 weeks) (Group 2). Either patients treated with Dupilumab or naive patients with moderate-to-severe forms of AD had a tear film instability (TBUT and NIKBUT reduced), whereas the quantity of the tear film was overall normal (Schirmer test and TMH), without statistically significant differences between the two groups. When Meibography was performed with the Keratograph, the difference between Group 1 and Group 2 was statistically significant in terms of Meiboscore (p = 0.0043 and p = 0.0242, respectively), as well as the difference in terms of mean RS. These results paired well with the confocal microscopy results in which we found a decrease in the goblet cell population in the conjunctival epithelium in the treated group (5.2 cells/mm), along with inflammatory cells that were more concentrated around the adenoid lumina of the meibomian glands. CONCLUSIONS: In recent years, the use of Dupilumab has been increasing, but mild-to-severe conjunctivitis is a common side effect. Our major results demonstrate a loss of meibomian glands at the Keratograph examination: we can assume a reduced meibum secretion and an evaporative dry eye with MGD. We suggest that the inflammation of the ocular surface may involve not only the cornea and the conjunctiva, but also the meibomian glands, and Dupilumab may play a role. However, the frequency of clear conjunctivitis is not as common as reported in the literature.

Assessment of Vulvar Intraepithelial Neoplasia (VIN) Grades Based on Dermoscopic Features: A Diagnostic Study.

INTRODUCTION: Vulvar intraepithelial neoplasia (VIN) is a vulvar skin lesion considered a precursor of vulvar squamous cell carcinoma. No characteristics have been discovered to date that allows us to differentiate between grades of VIN, such as correlating the thickness of involvement of the epithelium (VIN1, VIN2, and VIN3) to the dermoscopic pattern. OBJECTIVES: The aim of this study was to correlate the clinical and dermoscopic features of VIN cases with histopathological findings, with the purpose of identifying dermoscopic characteristics that allow us to differentiate between different grades of VIN. METHODS: A retrospective study of the clinical and dermoscopic characteristics of VINs was recruited. Clinical and dermoscopic characteristics, as well as histopathology data, were gathered from patients at two Dermatology Units in Italy during the period spanning from January 2020 to December 2021. RESULTS: The study population consisted of 20 patients with a histologically confirmed diagnosis of VIN. The mean age of patients at the time of diagnosis was 55 years. At the dermoscopic level, VIN1 was characterized by a homogeneous erythematous area that completely involved the entire lesion, with a vascular pattern consisting of regular glomerular vessels. VIN3, was characterized by the presence of compact milky white areas that involved almost the entire lesion. VIN2 was characterized by the presence of non-compact white areas that allowed homogeneous erythematous areas to be seen transparently, without other distinguishing aspects. CONCLUSIONS: Although a definitive diagnosis and grading of VIN remains confirmed only histopathologically, our study shows how dermoscopy may aid the differential diagnosis between the different grades of VIN; the presence of a compact milky white area that involves nearly the entire lesion should be interpreted as an alarming feature, while homogeneous erythematous areas or a glomerular vascular pattern are more typical of the first stage of this neoplasia.

Tolerance of sonidegib after intolerance of vismodegib-Experience in two patients with nevoid basal cell carcinoma syndrome (Gorlin syndrome).

Nevoid basal cell carcinoma syndrome (NBCCS, Gorlin syndrome) is a rare genetic condition characterized by the early development of numerous cutaneous basal cell carcinomas (BCCs). Although most BCCs are surgically treated with total resection, some of the lesions may proceed to a locally advanced or metastatic stage. Systemic treatment with a hedgehog inhibitors (HHIs) such as Vismodegib or Sonidegib is indicated in this population. We report cases of two patients with confirmed diagnoses of NBCCS. Both patients had undergone multiple surgical excisions and had been treated with oral Vismodegib 150 mg/day for a locally advanced tumour. They both discontinued the therapy due to its specific adverse effects (AEs) and are now being treated with oral Sonidegib, which has had better tolerability and a complete response. The aims of this report was to demonstrate the efficacy of HHI treatment with Sonidegib in patients with NCBBS who had previously treated with Vismodegib but discontinued it because of its specific AEs. Our experience in two patients shows that Sonidegib can be considered in Gorlin patients intolerant but responding to Vismodegib.

Is Pediatric Melanoma Really That Different from Adult Melanoma? A Multicenter Epidemiological, Clinical and Dermoscopic Study.

PURPOSE: To improve the diagnostic accuracy and optimal management of pediatric melanomas. METHODS: We conducted a retrospective descriptive, multicenter study of the epidemiological, clinical, and dermoscopic characteristics of histopathologically proven melanomas diagnosed in patients less than 18 years old. Data on sociodemographic variables, clinical and dermoscopic characteristics, histopathology, local extension, therapy and follow-up, lymph node staging, and outcome were collected from the databases of three Italian dermatology units. We performed a clinical evaluation of the morphological characteristics of each assessed melanoma, using both classic ABCDE criteria and the modified ABCDE algorithm for pediatric melanoma to evaluate which of the two algorithms best suited our series. RESULTS: The study population consisted of 39 patients with a histologically confirmed diagnosis of pediatric melanoma. Comparing classic ABCDE criteria with the modified ABCDE algorithm for pediatric melanomas, the modified pediatric ABCDE algorithm was less sensitive than the conventional criteria. Dermoscopically, the most frequent finding was the presence of irregular streaks/pseudopods (74.4%). When evaluating the total number of different suspicious dermoscopy criteria per lesion, 64.1% of the lesion assessments recognized two dermoscopic characteristics, 20.5% identified three, and 15.4% documented four or more assessments. CONCLUSIONS: Contrary to what has always been described in the literature, from a clinical point of view, about 95% of our cases presented in a pigmented and non-amelanotic form, and these data must be underlined in the various prevention campaigns where pediatric melanoma is currently associated with a more frequently amelanotic form. All the pediatric melanomas analyzed presented at least two dermoscopic criteria of melanoma, suggesting that this could be a key for the dermoscopic diagnosis of suspected pediatric melanoma, making it possible to reach an early diagnosis even in this age group.

Comment on Kesic et al. Early Diagnostics of Vulvar Intraepithelial Neoplasia. Cancers 2022, 14, 1822.

We have read with great interest the paper by Kesic, V. et al. entitled "Early Diagnostics of Vulvar Intraepithelial Neoplasia" [...].