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Onychomycosis, a fungal nail infection, is a common dermatological condition in Japan, with a prevalence of approximately 5%-10%. Despite the introduction of new antifungal medications and updated treatment guidelines published in 2019, data on real-world prescription trends and the associated medical costs are limited. This study aimed to investigate the prescription patterns and medical costs of topical and oral antifungal medications for onychomycosis in Japan from fiscal years 2014 to 2021 using the National Database of Health Insurance Claims and Specific Health Checkups of Japan Open Data. We analyzed the annual prescription volumes and medical costs of four antifungal medications: efinaconazole, luliconazole, fosravuconazole, and terbinafine. The prescription volume of efinaconazole, a topical medication launched in 2014, rapidly increased and dominated the market share. Fosravuconazole, an oral medication introduced in 2018, showed an increasing trend, coinciding with a decline in efinaconazole prescriptions. Terbinafine, a well-established oral medication, experienced a substantial decrease in prescription volume. The sex- and age-adjusted prescription volume per 100 000 population was higher among older adults, particularly for efinaconazole. The total medical costs for onychomycosis treatment more than doubled in fiscal year 2015 compared with that for 2014, mainly driven by efinaconazole prescriptions, and exceeded 30 billion Japanese yen in fiscal years 2019-2021. The costs slightly decreased in fiscal years 2020 and 2021, possibly due to the introduction of fosravuconazole. The predominance of topical prescriptions, especially in older adults, raises concerns regarding adherence to the Japanese guidelines that recommend oral antifungals as the first-line treatment for onychomycosis. The substantial increase in medical costs also highlights the economic burden of onychomycosis and the need for cost-effective treatment strategies. This study provides valuable insights into the real-world prescription trends and medical costs of onychomycosis treatment in Japan, suggesting an opportunity to assess potential gaps between guideline recommendations and clinical practice.
Asunto(s)
Antifúngicos , Bases de Datos Factuales , Onicomicosis , Onicomicosis/tratamiento farmacológico , Onicomicosis/economía , Humanos , Japón , Antifúngicos/economía , Antifúngicos/uso terapéutico , Femenino , Masculino , Persona de Mediana Edad , Anciano , Adulto , Administración Tópica , Administración Oral , Prescripciones de Medicamentos/estadística & datos numéricos , Prescripciones de Medicamentos/economía , Pautas de la Práctica en Medicina/estadística & datos numéricos , Pautas de la Práctica en Medicina/economía , Adulto Joven , Adolescente , Revisión de Utilización de Seguros , Dermatosis del Pie/tratamiento farmacológico , Dermatosis del Pie/economía , Costos de la Atención en Salud/estadística & datos numéricos , Costos de los Medicamentos , Terbinafina/uso terapéutico , Terbinafina/economía , Terbinafina/administración & dosificaciónRESUMEN
Intravascular large B-cell lymphoma (IVLBCL) is a rare type of extranodal, diffuse, large B-cell lymphoma characterized by the selective growth of lymphoma cells within the lumen of small blood vessels, with no lymphadenopathy or masses. Herein, we report a cutaneous variant of IVLBCL that is rare in Asia. A healthy 73-year-old Japanese woman presented to our hospital with painful erythematous indurations and telangiectasia of the lower extremities, which was confirmed on dermoscopy. Physical examination revealed no systemic involvement, and laboratory parameters were within normal ranges. No abnormal fluorodeoxyglucose (FDG) uptake was detected on 18FDG positron emission tomography/computed tomography. Histopathological examination revealed proliferation and dilatation of blood vessels in the subcutis layer, occluded by CD20-positive atypical lymphoid cells. Thus, the patient was diagnosed with a cutaneous variant of IVLBCL without systemic symptoms. In conclusion, it is important to confirm telangiectasia using dermoscopy and perform skin biopsies in patients presenting with sudden-onset erythematous induration.
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Dermatoscopy is a non-invasive and cost-efficient imaging technique augmenting clinical examination in neoplastic and non-neoplastic dermatoses. Recently, novel dermatoscopic techniques based on principles of reflectance/absorption and excited fluorescence have been developed. However, comprehensive data on their applications are sparse, and terminology is inconsistent. In this systematic review, we addressed the principles of ultraviolet (UV) imaging and proposed categorization based on spectral characteristics and signal acquisition, as well as discussed documented and potential clinical applications, safety measures during examination, and limitations associated with reflectance and fluorescence dermatoscopy. A literature search was conducted in the PubMed medical database until 2 December 2023 according to PRISMA guidelines, and 28 papers fit the scope of this review, whereas additional relevant articles were included to provide broader context regarding the chosen terminology, chromophores described, safety of sub-UV/UV, and regulations for light-emitting devices. UV and sub-UV dermatoscopy, categorized into different methods on the basis of the emitted wavelength and signal acquisition process (reflectance versus fluorescence), augment conventional dermatoscopy by optimizing safety margins in melanoma, facilitating early detection of tumor recurrence, and enhancing visualization in non-neoplastic conditions, including pigmentation disorders, intertrigo, papulo-desquamative dermatoses, and beyond. The review highlights the limitations of these techniques, including difficulty in differentiating melanin from hemoglobin, challenges in evaluating uneven surfaces, and artifacts. Although UV dermatoscopy complements conventional dermatoscopy, clinicians should be aware of their peculiarities, artifacts, limitations, and safety concerns to optimize their diagnostic accuracy and ensure patient's safety.
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Albinismo Oculocutáneo , Dermoscopía , Melanoma Amelanótico , Neoplasias Cutáneas , Humanos , Albinismo Oculocutáneo/complicaciones , Albinismo Oculocutáneo/diagnóstico , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/diagnóstico por imagen , Neoplasias Cutáneas/complicaciones , Melanoma Amelanótico/patología , Melanoma Amelanótico/diagnóstico , Melanoma Amelanótico/diagnóstico por imagen , Melanoma Amelanótico/complicaciones , Masculino , FemeninoAsunto(s)
Psoriasis , Humanos , Enfermedad Aguda , Causalidad , Enfermedad Crónica , Psoriasis/epidemiología , Psoriasis/genética , Pirina/genéticaRESUMEN
BACKGROUND: Few studies have examined the effectiveness of the reciprocity law in ultraviolet excimer therapy. This study aimed to examine the difference in erythematous reaction in human skin when the irradiance of ultraviolet excimer treatment devices differed while the irradiation dose was constant. MATERIALS AND METHODS: This study, conducted at the Department of Dermatology, Chiba University, included 15 healthy adults aged 20-65 years (mean age, 46.3 years; seven men). Using ultraviolet excimer treatment devices with different irradiances (50 or 150 mW/cm2 ), the upper abdomen of each participant was irradiated with ultraviolet light at set irradiation doses (80, 100, 120, 140, 160, 180, and 200 mJ/cm2 ). The erythema index of each irradiated site was measured using a melanin- and erythema-measuring device, and the difference in erythema index before and 24 h after irradiation was the primary endpoint. RESULTS: The change in erythema index was significantly higher for an irradiance of 150 mW/cm2 . Significant differences (p < 0.05) were observed between these irradiance levels at irradiation doses of 100-200 mJ/cm2 . CONCLUSIONS: Even for the same irradiation dose, stronger erythematous reactions occurred at higher irradiances in ultraviolet excimer treatment. This suggests that the reciprocity law may not always hold true in excimer therapy.
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Terapia Ultravioleta , Adulto , Masculino , Humanos , Persona de Mediana Edad , Eritema/etiología , Rayos Ultravioleta/efectos adversos , Piel , MelaninasRESUMEN
We describe the case of a 60-year-old man with a 16-year history of gait imbalance and a 15-year history of forgetfulness. The insidious onset and slow progression suggested that the disease was degenerative. Neurologic examination revealed cerebellar ataxia, chorea, and mild cognitive impairment. Brain MRI revealed prominent cerebellum atrophy and diffuse atrophy in the brainstem and cerebrum. Based on neurologic manifestations, an additional patient interview and skin examination were conducted. Photosensitivity and freckling in exposed areas, which the patient did not recognize as disease symptoms, were observed. Based on acute and chronic photosensitivity and DNA repair test results, a final diagnosis was made. In patients with cerebellar ataxia, chorea, and cognitive dysfunction of unknown etiology, clinicians should explore patients' history of photosensitivity and carefully examine the skin.
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Ataxia Cerebelosa , Corea , Disfunción Cognitiva , Ataxia/complicaciones , Atrofia/patología , Ataxia Cerebelosa/complicaciones , Ataxia Cerebelosa/diagnóstico , Cerebelo/patología , Corea/diagnóstico por imagen , Corea/etiología , Razonamiento Clínico , Disfunción Cognitiva/diagnóstico por imagen , Disfunción Cognitiva/etiología , Humanos , Imagen por Resonancia Magnética/efectos adversos , Masculino , Persona de Mediana EdadAsunto(s)
Enfermedades de la Uña , Neoplasias Cutáneas , Dermoscopía , Diagnóstico Diferencial , Humanos , Masculino , Persona de Mediana Edad , Enfermedades de la Uña/diagnóstico por imagen , Enfermedades de la Uña/cirugía , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugíaRESUMEN
Malignant melanomas often present with irregular shapes and in multiple shades of brown under white light. Dermoscopy is used to diagnose malignant melanomas; nevertheless, it is often difficult to differentiate malignant melanoma from healthy pigmented skin. The DZ-D100 dermoscope (Casio Computer) is a digital camera equipped with a white light-emitting diode (LED) and a violet LED, which can capture non-polarized/polarized conventional dermoscopy images (CDS) as well as violet-light dermoscopy (VLD) images. Since the absorption wavelength of melanin approaches that of ultraviolet rays, VLD with a wavelength of 405 nm can be used to visualize it. This camera allows three images with the same composition to be captured simultaneously. In this case, we performed dermoscopy with DZ-D100 to determine the surgical resection margins of a melanoma of the heel in a 76-year-old woman. The pale-colored lesions that were difficult to demarcate by CDS were clearly visible by VLD, presenting as dark areas in the grayscale images. Preoperatively determined lesion boundaries with CDS in combination with VLD were histologically more accurate than those with conventional CDS alone. Therefore, the combination of CDS and VLD may reveal the distribution of subtle pigmentation of fine melanin in the skin, making it easier to distinguish between lesions and healthy skin. As one of the limitations, parts of the heel with thick stratum corneum were also observed to be dark gray in the VLD images. Therefore, the evaluation of pigment lesion should be performed by comparing both CDS and VLD.
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Melanoma , Neoplasias Cutáneas , Anciano , Dermoscopía/métodos , Femenino , Humanos , Melaninas , Melanoma/diagnóstico por imagen , Melanoma/patología , Sensibilidad y Especificidad , Neoplasias Cutáneas/diagnóstico por imagen , Neoplasias Cutáneas/patología , Melanoma Cutáneo MalignoRESUMEN
In this paper, we report the case of a 71-year-old man with an 8-year history of melanonychia on the right little finger, who referred to our hospital because the color of pigmented area had gradually darkened and the width had expanded. Physical examination revealed longitudinal melanonychia with brown color (4 mm in width). Dermoscopic examination revealed multiple white round clods and splinter hemorrhages. No micro-Hutchinson sign was observed. We performed a punch biopsy (diameter 3 mm) of the nail matrix for diagnosis. Histopathological examination revealed irregular acanthosis of epithelium of the nail bed and distal matrix, which consisted of basaloid cells without nuclear atypia. Several zones exhibited cell whorls reminiscent of squamous eddies. The whorls were composed of large pink cells arranged in an onion peel-like fashion. The basaloid cells tested negative for human papillomavirus in situ hybridization and p16 staining. The morphology of white round clods (milia-like cysts in metaphoric term) observed in dermoscopic analysis corresponded to squamous eddies in histopathology. Considering these features, ungual seborrheic keratosis (SK) with longitudinal melanonychia was diagnosed, which is an atypical site for SK. We suggest that the dermoscopic finding of milia-like cysts may be useful for the diagnosis of ungual SK.
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Carcinoma de Células Escamosas , Quiste Epidérmico , Queratosis Seborreica , Enfermedades de la Uña , Uñas Malformadas , Neoplasias Cutáneas , Anciano , Carcinoma de Células Escamosas/diagnóstico , Dermoscopía , Diagnóstico Diferencial , Quiste Epidérmico/diagnóstico , Humanos , Queratosis Seborreica/diagnóstico , Queratosis Seborreica/patología , Masculino , Enfermedades de la Uña/diagnóstico , Uñas Malformadas/diagnóstico , Neoplasias Cutáneas/patologíaRESUMEN
SASH1 has been reported as a causal gene of lentiginous phenotypes with and without heredity, including an autosomal dominant type characterized by lentigines predominantly on sun-exposed areas such as the face and limbs. Recently, cases of dyschromatosis with SASH1 mutations have been reported worldwide; however, only one case has been reported from Japan. Here, we analyzed six Japanese patients who characteristically showed many lentigines on sun-exposed areas, using next-generation sequencing. We identified five novel heterozygous mutations in SASH1 (p.I586M, p.S531Y, p.R644W, p.T525R, and p.S516I) in our patients and their families. The p.R644W substitution identified in two unrelated families was the first mutation located in the sterile alpha motif 1 (SAM1) domain. The degree and location of the lentigines were variable across individuals, even if they shared the same SASH1 mutation. All mutations were predicted to be deleterious by six different algorithms used to evaluate the functional impact of a variation. In addition, immunohistopathological findings and RNA sequencing results suggested that SASH1 mutations were associated with an increase in the number of melanocytes, acceleration of melanogenesis, and upregulated hair keratin expression.
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Lentigo/patología , Mutación Missense , Fenotipo , Proteínas Supresoras de Tumor/genética , Adolescente , Adulto , Preescolar , Femenino , Humanos , Lentigo/genética , Masculino , Linaje , PronósticoRESUMEN
We used 2-D shear wave elastography to quantify lymph node hardness, from the shear wave velocity, to determine the presence or absence of metastatic lymphadenopathy in the inguinal lymph nodes of five patients with malignant melanoma and squamous cell carcinoma. The shear wave velocity accurately identified all cases of metastasis confirmed by histology, compared with two false-positive and one false-negative finding with positron emission tomography/computed tomography. 2-D shear wave elastography would be useful to evaluate inguinal lymph node metastasis.
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Carcinoma de Células Escamosas , Diagnóstico por Imagen de Elasticidad , Melanoma , Carcinoma de Células Escamosas/diagnóstico por imagen , Humanos , Ganglios Linfáticos/diagnóstico por imagen , Metástasis Linfática/diagnóstico por imagen , Melanoma/diagnóstico por imagenRESUMEN
Clear cell acanthoma (CCA) is a rare benign epidermal tumor that is difficult to diagnose by visual inspection. Conversely, its diagnosis by dermoscopy is relatively easy owing to the characteristic serpiginous arrangement of coiled vessels, sometimes described as the "string-of-pearls" formation. However, in few published reports, the dermoscopic diagnosis of mature CCA has been reported. Here, we report the histopathological and detailed dermoscopic findings of two CCA cases. Between these, one case was of early (~6 months) CCA exhibiting the characteristic vascular string-of-pearls formation, whereas the other was of a more mature (~10 years) CCA; although the latter case showed combined thick and thin white intersecting lines with large coiled vessels and/or red clods, it had the string-of-pearls formation. Thus, regardless of CCA maturity, the string-of-pearls formation was present. We propose that the combination of combined thick and thin white intersecting lines along with the vascular string-of-pearls formation reflecting large coiled vessels and/or red clods on dermoscopy is a diagnostic clue to mature CCA.
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Acantoma/diagnóstico , Dermoscopía , Epidermis/diagnóstico por imagen , Neoplasias Cutáneas/diagnóstico , Acantoma/patología , Acantoma/cirugía , Anciano , Biopsia , Diagnóstico Diferencial , Epidermis/patología , Epidermis/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugía , Resultado del TratamientoRESUMEN
We aimed to elucidate the dermoscopic vasculature of patients with Bowen Disease (BD) that was misdiagnosed as chronic eczema and had branched and/or reticular vessels after topical steroid application. The medical records of 19 patients with BD on the upper trunk were retrospectively reviewed for steroid use history, vascular structure observed in dermoscopy, and corresponding histological findings. Four patients treated with strong topical steroids showed remarkable branched and/or reticular vessels on dermoscopy. Histopathology showed partial epidermal atrophy with irregular thin elongation of the rete ridges, atypical keratinocyte proliferation in the epidermis, and vasodilation in the superficial dermis. We considered that vasodilation and partial epidermal atrophy may be induced by topical steroid application in BD-affected areas. In cases of suspected BD with reddish-brown plaque showing branched and/or reticulated vessels in dermoscopy, confirming a history of topical steroid use is helpful.
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Pharmacological regimens with multiple medications are being used in fertility treatments. Herein, we report a case of a 40-year-old Japanese woman who developed Stevens-Johnson syndrome (SJS) with a severe ocular complication during fertility treatment. Despite early multimodal interventions, including methylprednisolone pulse therapy and plasma exchange, her ocular complications persisted for more than a year. The four drugs administered in this case (cabergoline, medroxyprogesterone acetate, clomiphene, and intravenous human chorionic gonadotropin) have never been reported to induce SJS. Based on this case, we suggest that obstetricians, gynecologists, and dermatologists should be aware of fertility treatment-induced severe drug eruptions.
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Oftalmopatías/inducido químicamente , Fármacos para la Fertilidad Femenina/efectos adversos , Infertilidad Femenina/tratamiento farmacológico , Síndrome de Stevens-Johnson/etiología , Adulto , Antiinflamatorios/administración & dosificación , Cabergolina/administración & dosificación , Cabergolina/efectos adversos , Cefdinir/administración & dosificación , Gonadotropina Coriónica/administración & dosificación , Gonadotropina Coriónica/efectos adversos , Clomifeno/administración & dosificación , Clomifeno/efectos adversos , Quimioterapia Combinada/efectos adversos , Oftalmopatías/terapia , Femenino , Fármacos para la Fertilidad Femenina/uso terapéutico , Glucocorticoides/administración & dosificación , Humanos , Acetato de Medroxiprogesterona/administración & dosificación , Acetato de Medroxiprogesterona/efectos adversos , Intercambio Plasmático , Síndrome de Stevens-Johnson/terapiaRESUMEN
Soluble CD14 (sCD14) is one of the immunomodulatory factors in breast milk (BM). Although it may be involved in the prevention of atopic symptoms and sensitization to both food and inhalant allergens, conflicting evidence exists concerning its protective effects. In this study, we investigated the relationship between sCD14 in colostrum and 1-month BM, and the development of atopic dermatitis (AD) and sensitization to food and aeroallergens at 9 months of age in infants who were exclusively or almost exclusively breastfed up to 4 months of age. BM samples were collected from lactating mothers who participated in a 2 × 2 factorial, randomized, nontreatment controlled trial study set in Tokyo, which looked at the efficacy of emollients and synbiotics in preventing AD and food allergy in children during the first year of life. A total of 258 colostrum samples and 269 1-month BM samples were analyzed. We found that one-month BM sCD14 levels in the AD group were significantly lower than in the non-AD group. Levels of sCD14 in 1-month BM were not related to allergen sensitization in the overall analysis, but egg white sensitization correlated inversely with 1-month BM sCD14 in infants without AD. The results suggest that sCD14 in BM may be involved in atopic manifestations in early infancy.
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Lactancia Materna , Dermatitis Atópica/prevención & control , Hipersensibilidad a los Alimentos/prevención & control , Receptores de Lipopolisacáridos/inmunología , Leche Humana/inmunología , Adulto , Factores de Edad , Calostro/inmunología , Calostro/metabolismo , Dermatitis Atópica/diagnóstico , Dermatitis Atópica/inmunología , Dermatitis Atópica/metabolismo , Femenino , Hipersensibilidad a los Alimentos/diagnóstico , Hipersensibilidad a los Alimentos/inmunología , Hipersensibilidad a los Alimentos/metabolismo , Humanos , Lactante , Receptores de Lipopolisacáridos/metabolismo , Masculino , Leche Humana/metabolismo , Factores Protectores , Ensayos Clínicos Controlados Aleatorios como Asunto , Factores de Riesgo , TokioRESUMEN
BACKGROUND: Atopic dermatitis (AD) and food allergy (FA) are common childhood diseases, which may either be interrelated or be the result of skin barrier disruption and gut mucosal dysbiosis. Although some evidence suggests the efficacy of emollients and synbiotics, there is no conclusive evidence on the use of these interventions alone or in combination. OBJECTIVES: This study is aimed at identifying the efficacy of emollients and synbiotics in preventing AD and FA in children during the first year of life. METHODS: The babies of mothers recruited prenatally received either an emollient, synbiotic, both or neither. The intervention was carried out from birth up to 6 months of age. The age of occurrence of AD and FA were reported in multiple questionnaires at 1, 6, and 9 months and at 1 year of age. AD was diagnosed by a pediatrician at 9 months of age. RESULTS: A -total of 459 babies qualified for the outcome assessment at 1 year of age. Neither the emollient nor the synbiotic showed any effect on reducing the development of AD and FA at 1 year of age. CONCLUSIONS: This study did not provide any evidence to show that emollients and synbiotics, alone or in combination are sufficient to prevent the occurrence of AD or FA in children up to 1 year of age.