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Cureus Apr 2024Pseudoporphyria is an uncommon dermatosis resembling porphyria cutanea tarda (PCT). The exclusion of true porphyria, especially PCT, is critically essential for...
Pseudoporphyria is an uncommon dermatosis resembling porphyria cutanea tarda (PCT). The exclusion of true porphyria, especially PCT, is critically essential for diagnosing pseudoporphyria. It has an unknown underlying pathophysiology with a normal or near-normal porphyrin profile. Pseudoporphyria has been associated with chronic renal failure and hemodialysis, medications, and tanning beds. In drug-induced pseudoporphyria cases, eliminating the suspected photosensitizing drug improves the disease typically within weeks to months (on average eight weeks). In genetically predisposed individuals, phototoxic metabolites may trigger the development of skin fragility, bullae, milia, and scarring on the dorsum of the hands and other sun-exposed areas. Wearing a broad-spectrum sunscreen and maintaining strict ultraviolet protection is essential in cases of pseudoporphyria. We report the case of a 20-year-old male who presented to us with complaints of photosensitivity and multiple erosions with irregular scars over photo-exposed areas involving the dorsum of the hands and face predominantly. The patient was evaluated further to determine the underlying cause. A wood's lamp examination of the urine was done, which did not show fluorescence. Based on clinical and laboratory findings, the diagnosis of pseudoporphyria was made, and the patient was started on the oral antimalarial agent hydroxychloroquine sulfate with strict sun protection.
PubMed: 38707054
DOI: 10.7759/cureus.57574 -
Journal of Family Medicine and Primary... Nov 2023During the neonatal life cycle, various dermatological conditions are common. In comparison to the skin of adults, neonates' skins are more susceptible to infections in...
BACKGROUND
During the neonatal life cycle, various dermatological conditions are common. In comparison to the skin of adults, neonates' skins are more susceptible to infections in the first week of their lives. These infections often lead to many dermatological skin complications and create worrisome among parents. Hence, it is crucial to diagnose and manage such affected neonates at the earliest. This study aimed to highlight and estimate the occurrence of numerous dermatoses and assess various skin changes that occurred physiologically and pathologically in neonates.
METHODOLOGY
In this cross-sectional observational study, 474 neonates were enrolled in the neonatal intensive care unit. The whole newborn skin surface, comprising the palms and soles, scalp, mucous membranes, genitalia, hair, and nails, was scrutinized under adequate light, and all changes that occurred over the skin were observed and recorded. The sample size estimation was undertaken from the references that have the least prevalent cutaneous dermatosis: hypertrichosis desquamation and napkin dermatosis. A statistical analysis like the Chi-square test was performed to associate the type of dermatosis with the parameters of age, gender, delivery type, and birth weight.
RESULTS
Of the total 474 cases, 90 (18.98%) had single dermatosis, while the remaining 384 (81.01%) had more than one form of dermatosis. Among the 384 cases, sebaceous gland hyperplasia (SGH) in 105 (22.15%), Epstein pearls in 50 (10.54%), erythema toxicum neonatorum (ETN) in 40 (8.43%), physiological desquamation in 25 (5.27%), lanugo hair in 20 (4.21%), miliaria in 22 (4.64%), salmon patch in 13 (2.74%), cradle cap/seborrheic dermatitis in 6 (1.26%), vernix caseosa in 12 (2.53%), transient neonatal pustular melanosis in 13 (2.74%), congenital melanocytic nevus in 20 (4.21%), hemangioma in 15 (3.16%), neonatal acne in 5 (1.05%), napkin dermatitis in 10 (2.10%), cutis marmorata in 6 (1.26%), milia in 2 (0.42%) intertrigo 3 (0.63%), collodion baby in 2 (0.42%), and neonatal occipital alopecia in 2 (0.42%) neonates each and others, respectively.
CONCLUSION
The findings from the present study were representative of a specific racial/geographic distribution and will assist in adding or comparing the prevalence of neonatal dermatosis with other geographic regions as the array of dermatological characterizations in neonates varies as per time and place. This study aims to provide insight into the future implications in the neonatal dermatology domain and avoid further skin complications.
PubMed: 38186839
DOI: 10.4103/jfmpc.jfmpc_513_23 -
ACS Sensors Aug 2023We report here a small library of a new type of acyclic squaramide receptors (-) as selective ionophores for the detection of ketoprofen and naproxen anions (KF and NS,...
We report here a small library of a new type of acyclic squaramide receptors (-) as selective ionophores for the detection of ketoprofen and naproxen anions (KF and NS, respectively) in aqueous media. H NMR binding studies show a high affinity of these squaramide receptors toward KF and NS, suggesting the formation of H-bonds between the two guests and the receptors through indole and -NH groups. Compounds - have been tested as ionophores for the detection of KF and NS inside solvent PVC-based polymeric membranes. The optimal membrane compositions were established through the careful variation of the ligand/tridodecylmethylammonium chloride (TDMACl) anion-exchanger ratio. All of the tested acyclic squaramide receptors - have high affinity toward KF and NS and anti-Hofmeister selectivity, with and showing the highest sensitivity and selectivity to NS. The utility of the developed sensors for a high precision detection of KF in pharmaceutical compositions with low relative errors of analysis (RSD, 0.99-1.4%) and recoveries, %, in the range 95.1-111.8% has been demonstrated. Additionally, the chemometric approach has been involved to effectively discriminate between the structurally very similar KF and NS, and the possibility of detecting these analytes at concentrations as low as 0.07 μM with of 0.947 and at 0.15 μM with of 0.919 for NS and KF, respectively, was shown.
Topics: Ionophores; Anions; Quinine
PubMed: 37530141
DOI: 10.1021/acssensors.3c00981 -
Cureus Sep 2023Background Cysts are common skin abnormalities that are mostly benign; however, sometimes malignant lesions may present clinically as cystic manifestations. Benign...
Background Cysts are common skin abnormalities that are mostly benign; however, sometimes malignant lesions may present clinically as cystic manifestations. Benign cutaneous cysts can be of different morphological types and their diagnosis relies on histological evaluations. The most common mode of treatment is surgical excision, which is curative. Methodology This is a retrospective cross-sectional study conducted at the Department of Histopathology, Chughtai Institute of Pathology, Lahore, Pakistan from 1st January 2020 to 31st December 2022. Non-probability consecutive sampling was done, and all the cases of benign cutaneous cysts were included. All cases were microscopically reviewed by two histopathologists, and variables like age, gender, site of the lesion, and histological diagnosis were noted. The data were analyzed using IBM SPSS Statistics for Windows, Version 29 (Released 2022; IBM Corp., Armonk, New York, United States). Results A total of 1160 recorded cases of benign cutaneous cysts were included. Overall gender distribution revealed males (n=489, 42.1%) and females (n=671, 57.8%). The age range was 3 to 91 years with a mean age of 37.56 ± 16.05 years. The three most common cysts were epidermal inclusion cysts (74.3%), trichilemmal cysts (15.1%), and dermoid cysts (6.3%). Other cysts were uncommon including hidrocystoma (1.9%), steatocystoma (0.3%), verrucous cysts (0.3%), comedones (0.6%), hybrid cysts (0.2%), milia (0.3%), and vellus hair cysts (0.2%). The most common site was back (23.5%) for epidermal inclusion cysts, scalp (74.4%) for trichilemmal cysts, and eye (33.8%) for dermoid cysts. Conclusion Benign cutaneous cysts have a broad morphological spectrum with a wide age range. Epidermal inclusion cysts, trichilemmal cysts, dermoid cysts, and hidrocystoma account for the four most common types. For each of the other cyst type, the prevalence was under 1%. Female gender predominated in epidermal inclusion cysts, trichilemmal cysts, and dermoid cysts while male gender was common in other cysts. Overall majority of the cysts presented in the head and neck area.
PubMed: 37868536
DOI: 10.7759/cureus.45548 -
Jornal de Pediatria 2023Determine the frequency of dermatological diagnoses in preterm newborns up to 28 days of life and associated perinatal factors.
OBJECTIVES
Determine the frequency of dermatological diagnoses in preterm newborns up to 28 days of life and associated perinatal factors.
METHOD
a cross-sectional analytical study with a convenience sample and prospective data collection, was conducted between November 2017 and August 2019. Overall, 341 preterm newborns who had been admitted to a University hospital - including those admitted to the Neonatal Intensive Care Unit - were evaluated.
RESULTS
61 (17.9%) had less than 32 weeks gestational age (GA), with a mean GA and birth weight of 33.9 ± 2.8 weeks and 2107.8 ± 679.8g (465 to 4230g), respectively. The median age at the time of evaluation was 2.9 days (4 h to 27 days). The frequency of dermatological diagnoses was 100% and 98.5% of the sample had two or more, with an average of 4.67+1.53 dermatoses for each newborn. The 10 most frequent diagnoses were lanugo (85.9%), salmon patch (72.4%), sebaceous hyperplasia (68.6%), physiological desquamation (54.8%), dermal melanocytosis (38.7%), Epstein pearls (37.2%), milia (32.2%), traumatic skin lesions (24%), toxic erythema (16.7%), and contact dermatitis (5%). Those with GA< 28 weeks showed more traumatic injuries and abrasions, whereas those with ≥ 28 weeks had physiological changes more frequently, and those with GA between 34-36 weeks, had transient changes.
CONCLUSION
Dermatological diagnoses were frequent in our sample and those with higher GA showed a higher frequency of physiological (lanugo and salmon patch) and transient changes (toxic erythema and miliaria). Traumatic lesions and contact dermatitis were among the 10 most frequent injuries, reinforcing the need to effectively implement neonatal skin care protocols, especially in preterm.
Topics: Pregnancy; Female; Humans; Infant, Newborn; Cross-Sectional Studies; Infant, Newborn, Diseases; Birth Weight; Erythema; Gestational Age; Dermatitis, Contact; Intensive Care Units, Neonatal
PubMed: 37172615
DOI: 10.1016/j.jped.2023.04.005 -
The Journal of Clinical and Aesthetic... Nov 2023Basaloid follicular hamartoma is an uncommun benign neoplasm of the hair follicule. The linear form of basaloid follicular hamartoma can be associated with basal cell...
BACKGROUND
Basaloid follicular hamartoma is an uncommun benign neoplasm of the hair follicule. The linear form of basaloid follicular hamartoma can be associated with basal cell carcinoma. We report a case of a patient with multiple basal cell carcinomas developing on a congenital lesion allowing the diagnosis of basaloid follicular hamartoma on histopathology.
METHODS
Each lesion was evaluated by two dermatologists. All biopsy specimens were routinely stained with hematoxylin-eosin.
RESULTS
A 76 year-old-man consulted our dermatology departement for erythematous papules spread over the left lower limb. The lesion had been evolving since birth with flesh-colored to pinkish papules following Blaschko's lines from the root of the thigh to the foot. Three months before consultation, the papules increased in size leading to nodules with sometimes an ulcerated center. Dermoscopy under polarized mode displayed for ulcerated lesions (A) yellow-brownish crusts and ulceration surrounded by blue-grey ovoid nests, subtle short white streaks, brown dots and linear/arborising vessels. For nodular lesions (B), dermoscopic features are white pinkish hue, dotted and linear vessels, brown dots, blue-grey structureless areas and white prominent shiny streaks. There were some more erythematous inflamed and eroded areas in the background with a reversed honeycomb white network on dermoscopy (C), polymorphous vessels, whitish scales, ulcerations and milia-like cysts. The background lesion showed varied dermoscopic structures on a flesh colored slightly pinkish bottom (D). Histolopathology concluded for lesions A to an infiltrating and nodular basal cell carcinoma, (B) and (C) to fibroepithelioma of Pinkus and (D) to basaloid follicular hamartoma.
CONCLUSION
Several case reports have documented dermoscopic features of a solitary basaloid follicular hamartoma. However, further studies are required to specify any reproducible features.
PubMed: 38076655
DOI: No ID Found