Background: Primary cutaneous CD30+ lymphoproliferative disorders (pcCD30-LPDs) are a diseases with various clinical and prognostic characteristics. Objective: Increasing our knowledge of the clinical characteristics of pcCD30-LPDs and identifying potential prognostic variables in an Asian population. Methods: Clinicopathological features and survival data of pcCD30-LPD cases obtained from 22 hospitals in South Korea were examined. Results: A total of 413 cases of pcCD30-LPDs (lymphomatoid papulosis [LYP], n=237; primary cutaneous anaplastic large cell lymphoma [C-ALCL], n=176) were included. Ninety percent of LYP patients and roughly 50% of C-ALCL patients presented with multiple skin lesions. Both LYP and C-ALCL affected the lower limbs most frequently. Multiplicity and advanced T stage of LYP lesions were associated with a chronic course longer than 6 months. Clinical morphology with patch lesions and elevated serum lactate dehydrogenase were significantly associated with LPDs during follow-up in LYP patients. Extracutaneous involvement of C-ALCL occurred in 13.2% of patients. Lesions larger than 5 cm and increased serum lactate dehydrogenase were associated with a poor prognosis in C-ALCL. The survival of patients with C-ALCL was unaffected by the anatomical locations of skin lesions or other pathological factors. Conclusion The multiplicity or size of skin lesions was associated with a chronic course of LYP and survival among patients with C-ALCL.

Background: Eosinophilic cellulitis, also known as Wells’ syndrome, is an uncommon skin disease characterized by recurrent pruritic polymorphous plaques or nodules. There is limited knowledge in the Korean literature regarding the clinical characteristics and course of eosinophilic cellulitis. Objective: To investigate the clinical and histological features of eosinophilic cellulitis in Korean patients. Methods: In this case series study, we retrospectively reviewed the electronic medical records of patients diagnosed with eosinophilic cellulitis at our institutions from 2004 to 2022. We also analyzed the literature published in dermatology and internal medicine journals in Korea. Results: A total of 17 patients were included in this study (age, 39.4±21.8 years; 12 male [70.6%]), with an average disease duration of 4.4 months. We identified six clinical variants, with the typical plaque type being the most common (33.3%), followed by the papulonodular type (22.2%). Eosinophilia was observed in 78.6% of patients, and a flame figure, which is a typical histopathological feature of eosinophilic cellulitis, was observed in 52.9% of patients. Systemic and topical steroids and antihistamines were used as first-line treatment with generally favorable results (82.4%), followed by antibiotics (35.3%), cyclosporine (23.5%), and topical calcineurin inhibitors (23.5%).The recurrence rate during the mean follow-up period of 21.8 months was 29.4%. Conclusion Eosinophilic cellulitis can present with various clinical manifestations, and flame figures do not appear in all cases; therefore, clinical and histological correlations are critical for accurate diagnosis of patients with eosinophilic cellulitis.

A schwannoma can develop anywhere along the course of nerves. However, a schwannoma presenting as a scalp nodule is rare. Here, we present a rare case of schwannoma on the scalp with a review of magnetic resonance imaging (MRI) findings, which was initially misdiagnosed as an epidermal cyst or vascular malformation despite various radiologic examinations. Recognition of characteristic MRI features of schwannomas, such as low signal margin, target, entering-and-exiting-nerve, and fascicular signs, may result in an accurate diagnosis and proper management of tumors. In this report, we summarized differential characteristics of a schwannoma with an epidermal cyst and a lipoma.

No abstract available.
Carcinoma, Hepatocellular* ; Granuloma Annulare* ; Granuloma* ; Humans

PURPOSE: Patients treated with anticancer agents often experience a variety of treatment-related skin problems, which can impair their quality of life. MATERIALS AND METHODS: In this cross-sectional study, Dermatology Life Quality Index (DLQI) and clinical information were evaluated in patients under active anticancer treatment using a questionnaire survey and their medical records review. RESULTS: Of 375 evaluated subjects with anticancer therapy, 136 (36.27%) and 114 (30.40%) were treated for breast cancer and colorectal cancer, respectively. We found that women, breast cancer, targeted agent use, and longer duration of anticancer therapy were associated with higher dermatology-specific quality of life distraction. In addition, itching, dry skin, easy bruising, pigmentation, papulopustules on face, periungual inflammation, nail changes, and palmoplantar lesions were associated with significantly higher DLQI scores. Periungual inflammation and palmoplantar lesions scored the highest DLQI. CONCLUSION: We believe our findings can be helpful to clinicians in counseling and managing the patients undergoing anticancer therapy.
Antineoplastic Agents* ; Breast Neoplasms ; Colorectal Neoplasms ; Counseling ; Cross-Sectional Studies* ; Dermatology ; Drug-Related Side Effects and Adverse Reactions ; Female ; Humans ; Inflammation ; Medical Records ; Pigmentation ; Pruritus ; Quality of Life* ; Skin*

BACKGROUND: Sublingual immunotherapy (SLIT) with house dust mites (HDM) preparation has recently been proven to be beneficial for treating allergic rhinitis and asthma. However, there has been no report regarding the efficacy and safety of SLIT in Korean patients with atopic dermatitis (AD). OBJECTIVE: We intended to investigate the efficacy and safety of SLIT in Korean patients with AD. METHODS: A total of 34 patients with AD and immunoglobulin E (IgE)-proven HDM sensitization (Class ≥3) were recruited. Eczema area and severity index (EASI) score, total serum IgE level, specific IgE assays to Dermatophagoides pteronyssinus, D. farinae, and adverse effects were recorded during follow-up. "Responder" was defined as a patient with ≥30% improvement in EASI score after SLIT. RESULTS: Twenty-three patients continued SLIT for 12 months or more, whereas 3 patients (8.8%) dropped out because of exacerbation of dermatitis, and 8 patients (23.5%) were lost to follow-up. The average duration of SLIT treatment was 22.4 months (range, 12~32 months). EASI scores reduced significantly after 6 months of treatment (p<0.05) compared with those at baseline. A total of 18 patients were determined to be responders to SLIT after 6 months. Total and specific IgE serum levels did not significantly reduce after SLIT. No patients experienced serious adverse events, with the exception of two patients who developed transient lip and tongue swelling. CONCLUSION: Our study demonstrated that SLIT with HDM extracts is effective and tolerable in Korean patients with AD. Further controlled long-term trials are required to reinforce the current results.
Asthma ; Dermatitis ; Dermatitis, Atopic* ; Dermatophagoides pteronyssinus ; Eczema ; Follow-Up Studies ; Humans ; Immunoglobulin E ; Immunoglobulins ; Lip ; Lost to Follow-Up ; Pyroglyphidae ; Rhinitis, Allergic ; Sublingual Immunotherapy* ; Tongue

PURPOSE: Enterovirus (EV) infection in children can manifest various diseases from asymptomatic infection to nonspecific febrile illness, hand-foot-mouth disease, and aseptic meningitis. This study was aimed to investigate epidemiology and clinical significance of various genotypes of EV infections in pediatric inpatient. METHODS: We collected the stool samples from the admitted pediatric patients in Inha University Hospital from March 2014 to March 2015. EV detection and genotype identification were performed by real-time RT-PCR and semi-nested RT-PCR. Phylogenetic trees were constructed by neighbor joining method. RESULTS: A total of 400 samples were collected during study period and 112 patients (28%) were diagnosed with EV infections. The mean age of EV positive patients was 2.66 years (0.1-14) and sex ratio was 1.73:1. Genetic sequences of EVs were identified; coxsackievirus B5 (17, 15.2%), coxsackievirus A16 (13, 11.6%), enterovirus 71 (10, 8.9%), and coxsackievirus A2 (9, 8.0%). Nonspecific febrile illness (96, 86%) was the most common clinical manifestation and the duration of fever was 0-11 days (mean 3.1 days). Rash (44, 39%) and meningitis (43, 38%) were followed. Patients who were attending daycare center or had siblings accounted for 82.1%. Phylogenetic relationship tree revealed 6 distinct genogroups among 56 types of EVs. CONCLUSIONS: This study is the report of epidemiology, serotype distribution and clinical manifestations of children with EV infection in Incheon. This data will be helpful for further study about the epidemiology of EV infection in Korea.
Asymptomatic Infections ; Child ; Enterovirus* ; Epidemiology* ; Exanthema ; Fever ; Genotype ; Humans ; Incheon* ; Inpatients* ; Korea ; Meningitis ; Meningitis, Aseptic ; Sex Ratio ; Siblings ; Trees

No abstract available.
Fibroma* ; Nipples*

Mycobacterium massiliense is a new emerging pathogen within the M. chelonae-M. abscessus group that has been described recently. Mycobacterium massiliense usually causes pulmonary or skin and soft tissue infections in immunocompromised patients; however, cutaneous infections have also been reported in healthy individuals following surgical procedures or laparoscopic surgery. This potentially hazardous microorganism should not be overlooked because it often shows resistance to conventional antibiotics. A 25-year-old woman presented with erythematous nodules on her left leg, which was a liposuction site. A histopathological examination showed suppurative granulomas with mixed cellular infiltrations within the dermis and fat layer. Rod-shaped bacilli were detected within the clear spaces of the dermis using Ziehl-Neelsen stain. An acid-fast bacterial culture showed colony formation, and using the polymerase chain reaction-restriction fragment length polymorphism analytical method and the ERM gene, we identified M. massiliense. After surgical excision and the systemic administration of medication comprising clarithromycin and linezolid for 6 months, all of the cutaneous lesions improved and no new lesions occurred.
Adult ; Anti-Bacterial Agents ; Clarithromycin ; Dermis ; Female ; Granuloma ; Humans ; Immunocompromised Host ; Laparoscopy ; Leg ; Lipectomy* ; Mycobacterium* ; Skin ; Soft Tissue Infections ; Linezolid

Megalencephaly-capillary malformation syndrome is a disorder characterized by megalencephaly or hemimegalencephaly, focal or generalized somatic overgrowth, and vascular malformations. Other characteristic features are neonatal hypotonia, hydrocephalus, developmental delay, syndactyly/polydactyly, frontal bossing, and connective tissue dysplasia. Previously reported patients exhibit wide phenotypic variability in clinical and neuroradiological findings. Differential diagnosis may be challenging for clinicians due to other similar neurocutaneous syndromes. Herein, we report an 11-month-old male infant that presented with extensive, diffuse, reticulated, erythematous patches on his face, trunk, and extremities. Physical examination revealed an increased head circumference (>97 percentile), frontal bossing, hypertrophy of the right arm and leg, and syndactyly on both feet. Borderline developmental delay was identified, and magnetic resonance imaging of the brain revealed an enlarged right cerebral hemisphere and non-obstructive ventriculomegaly. To our knowledge, this is the first report of megalencephalycapillary malformation syndrome in Korean literature.
Arm ; Brain ; Cerebrum ; Connective Tissue ; Diagnosis, Differential ; Extremities ; Foot ; Head ; Humans ; Hydrocephalus ; Hypertrophy ; Infant ; Leg ; Magnetic Resonance Imaging ; Male ; Malformations of Cortical Development ; Muscle Hypotonia ; Neurocutaneous Syndromes ; Physical Examination ; Syndactyly ; Vascular Malformations