• Annals of Geriatric Medicine and Research
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• 제22권4호
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• pp.204-207
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• 2018

Mycobacterium abscessus comprises rapidly growing mycobacteria, and the clinical manifestations of M. abscessus skin infection include papule, nodule, ulcer, scar and mixed form. The cutaneous infections have been reported due to minor trauma, cosmetic therapy, acupuncture and disseminated infection. A 75-year-old man presented with pruritic diffuse various sized erythematous papuloplaques and pustules on the neck and chest for 2 months. The cutaneous lesions were spread around the wound of the shaving on the neck. The histopathologic findings were consistent with abscess showing infiltrations of neutrophils and lymphocytes in the dermis and negative findings were observed on immunohistochemical stain including acid-fast bacilli stain. One month later, mycobacterial culture result showed positive findings, and the pathogen was identified by reversetranscriptase polymerase chain reaction with hybridization. The patient was treated with combination of clarithromycin and ethambutol for 5 months and there is no evidence of recurrence after 6 months of follow-up. Herein, we report a case of M. abscessus cutaneous infection through minor trauma caused by shaving in the elderly.

• Journal of Microbiology and Biotechnology
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• 제33권8호
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• pp.981-991
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• 2023

Monkeypox (Mpox) virus, a member of the Poxviridae family, causes a severe illness similar to smallpox, which is characterized by symptoms such as high fever, rash, and pustules. Human-to-human transmission cases have been reported but remained low since the first recorded case of human infection occurred in the Congo in 1970. Recently, Mpox has re-emerged, leading to an alarming surge in infections worldwide since 2022, originating in the United Kingdom. Consequently, the World Health Organization (WHO) officially declared the '2022-23 Mpox outbreak'. Currently, no specific therapy or vaccine is available for Mpox. Therefore, patients infected with Mpox are treated using conventional therapies developed for smallpox. However, the vaccines developed for smallpox have demonstrated only partial efficacy against Mpox, allowing viral transmission among humans. In this review, we discuss the current epidemiology of the ongoing Mpox outbreak and provide an update on the progress made in diagnosis, treatment, and development of vaccines for Mpox.

• 한방안이비인후피부과학회지
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• 제22권3호
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• pp.228-236
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• 2009

Objectives : Acne, one of the most common disorders in dermatology clinic, is a chronic inflammatory disease which has the symptoms of comedones, papules, pustules, cysts, nodules and scars mainly on the face. Although some of pathologic findings are suggested, but the exact causes and mechanisms are not yet known in Western Medicine. Hwangryeonhaedok-Tang(HRHDT) is an antiinflammatory, antipyretic and detoxifying herb decoction. In this report, we would like to share our experience of acne treatment with HRHDT. Methods : We had treated several patients with acne, facial flushing and uprising febrile sensation on face using oral administration and external application of HRHDT. HRHDT is basically made up with Scutellariae Radix, Coptidis Rhizoma, Phellodendri Cortex and Gardeniae Fructus. In this trial, several other herbs were added according to the individual patient's accompanying symptoms. After the decoction of herbs in amount for 10 days, $Yogourmet^{(R)}$ Kefir Starter 10 g was added to the herbal solution that was then fermented in an incubator at $25^{\circ}C$ for 72 hours, and divided into 30 doses. Results : Photographies were taken before and after the treatment. The severities of acne were evaluated with these photos according to the Korean Acne Grading System(KAGS). As results, we observed dramatic clinical improvements and the decreases of KAGS grades after the average treatment period of 8 weeks. The medication was orally administered 3 times a day and the external treatment was applied average twice a week during the whole treatment period. Conclusions : From these results, HRHDT may be considered as a good prescription for the febrile and toxic type of acne patients.

• Journal of Yeungnam Medical Science
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• 제20권1호
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• pp.79-84
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• 2003

Pyoderma gangrenosum is uncommon neutrophilic dermatosis characterized by richness of the mature neutrophilic polynuclear dermal infiltrate. Pyoderma gangrenosum is associated with variable diseases, most commonly inflammatory bowel disease, hematological diseases, malignancies, but it is reported rarely in rheumatoid arthritis. We report a case of pyoderma gangrenosum in rheumoid arthritis patient. A 50-year-old woman admitted to our hospital due to painful pretibial ulcerative skin lesions. She had been treated as rheumatoid arthritis for 8 years. At admission, body temperature was $36.5^{\circ}C$ and other vital sign was unremarkable. Physical examination revealed right pretibial ulceration, multiple pustules on left pretibial area and both palms. Laboratory studies revealed WBC count 7,600/uL (neutrophils 60.3%, eosinophil 3.2%), hemoglobin 11.4 g/dL, platelet count 319,000/uL, ESR 65 mm/hour. Other lab findings were also unremarkable. Skin biopsy was done, which showed dense dermal infiltrate of neutrophils and wound culture were negative. By 8 weeks after systemic high dose corticosteroid (1 mg/kg/day), cyclosporine A (5 mg/kg/day), sulfasalazine 2 g therapy, symptoms and skin ulceration were being improved. Without skin relapse, she is followed up our hospital with low dose corticosteroid and sulfasalazine.

• Journal of Microbiology and Biotechnology
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• 제18권9호
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• pp.1500-1509
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• 2008

The hybridization patterns with the avrBs3 gene that is known to determine the recognition of host specificity were used to study the diversity of Xanthomonas axonopodis pv. glycines causing bacterial leaf pustule in soybean. A total of 155 strains were isolated from diverse tissues of soybean cultivars collected in Korea and were classified into six different type strains of OcsF, SL1017, SL1018, SL1045, SL1157, and SL2098 according to the patterns of avrBs3-homologous bands. When these type strains were inoculated on various cultivars, most of the Korean strains mildly induced disease symptoms on the resistant CNS1 cultivars. Unlike other type strains, strain SL2098, which appeared not to contain any avrBs3 homolog, induced only a few pustules on even highly susceptible cultivars. When a plasmid carrying the 3.7-kb avrBs3-homologous gene from strain SL1045 was introduced into SL2098, the transformant could not recover the pathogenicity in susceptible host plants. However, when avrBs3-homologous genes of strain SL1018 were mutated by transposon mutagenesis, one of the mutants in which a 5.2-kb chromosomal band homologous to avrBs3 was disrupted could not induce the hypersensitive response on resistant cultivars such as William82 or CNS2. Our results suggest that the avrBs3 homologs may play important roles in the pathogenicity of Xanthomonas axonopodis pv. glycines and the recognition of soybean cultivars.

• 한국임상수의학회지
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• 제29권4호
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• pp.352-355
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• 2012

Hypospadias is a rare congenital malformation of the urethra reported in cattle. The urethral lumen of male indigenous Korean calf is open along the ventral aspect of the penis in the perineal region. Renal abscess and renal stone formation causing urinary tact infection has not been reported in hypospadia calves. The objective of this study was investigation for renal abscess and renal stone formation through autopsy. Histopathological examination and laboratory tests were performed. At autopsy, the pustules were formed on the right renal cortex, and the renal medulla abscess were formed on right and left part of the renal pelvis. Histopathological finding, this case was diagnosed as severe acute suppurative and necrotizing pyelonephritis, and severe chronic interstitial nephritis with fibrosis and moderate multifocal acute cystitis with edema. Milky exudate of the kidney has been identified as Actinomyces meyeri using the VITEK-2 system for identification of bacteria, and the stone has been identified as carbonate apatite using FT-IR system for quantification analysis. This case report describe the hypospadias complicated with urinary tract infection due to carbonate apatite stones and Actinomyces meyeri.

• The Plant Pathology Journal
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• 제32권4호
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• pp.311-320
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• 2016

Xanthomonas axonopodis pv. glycines (Xag) is a necrotrophic bacterial pathogen of the soybean that causes bacterial pustules and is a nonhost pathogen of the chili pepper. In the current study, chili pepper fruit wound inoculated in planta with Xag 8ra formed necrotic lesions on the fruit surface and induced several structural and chemical barriers systemically in the fruit tissue. The initial defense response included programmed cell death of necrotizing and necrotized cells, which was characterized by nuclear DNA cleavage, as detected by TUNEL-confocal laser scanning microscopy (CLSM), and phosphatidylserine exposure on cell walls distal to the infection site, as detected by Annexin V FLUOS-CLSM. These two responses may facilitate cell killing and enhance transportation of cell wall materials used for cell wall thickening, respectively. The cells beneath the necrotic tissue were enlarged and divided to form periclinal cell walls, resulting in extensive formation of several parallel boundary layers at the later stages of infection, accompanying the deposition of wall fortification materials for strengthening structural defenses. These results suggest that nonhost resistance of chili pepper fruit against the nonhost necrotrophic pathogen Xag 8ra is activated systematically from the initial infection until termination of the infection cycle, resulting in complete inhibition of bacterial pathogenesis by utilizing organspecific in situ physiological events governed by the expression of genes in the plant fruit organ.

• 한국임상수의학회지
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• 제22권2호
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• pp.153-156
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• 2005

5살과 2살의 푸들 견이 미용 직후, 등 부위의 털의 변색과 전신적 탈모증세로 건국대학교 부속 동물 병원에 내원하였다 병변 부위에서는 육안적으로 약간의 피부 발적과 소농포가 발견되었지만 총 혈구 계산, 혈액 화학 검사에서는 특이한 소견이 발견되지 않았다. 아울러 최근 약물투여 병력도 없었다. 병변부의 trichogram에서는 모근 쪽과 모간에 멜라닌 과립이 착색되어 있었고, 병변 이외의 부위에서는 멜라닌 착색이 관찰되지 않았다. 그리고 병변부 피부 생검에서는 약한 부전 각화증이 관찰되었으며 아주 미약한 진피층의 호중구 침윤이 관찰되었다. 본 케이스에서는 melanotrichia가 미용 직후에 피부에 가해지는 각종 자극에 의해 발생할 수 있음을 보여주고 있다. 그러나, 미용 후 멜라닌 신생의 정도와 델라닌 세포의 증식 기전은 본 증례로서는 현재까지 명확하게 밝혀지지는 않았다.

• 대한수의학회지
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• 제45권3호
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• pp.375-379
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• 2005

Porcine juvenile pustular psoriasiform dermatitis (PJPPD) is a disease of young pigs and characterized by nonpruritic round eruption of skin. The cause of this disease is yet undetermined but is presumed to be genetic predisposition. There may be few opportunities for veterinarian to detect this disease compared with actual situation in field because these lesions resolve spontaneously in two months. The authors detected spontaneous PJPPD case and performed clinical and pathological studies on three pigs from one farm. The specific skin lesions were observed in the forty-day old pigs of mixed breed, which were produced by the sows received semen from the same boar, restrictively. However, there was no skin lesion of pigs in suckling or fattening periods. Grossly, lesions were commonly found on the ventral abdominal part as a papule and were spreaded to the skin of whole body. With the spreading of lesions centrifugally, skin was showed as a umbilicated plaques or mosaic pattern with a few pustules or crusts. Microscopically, the most prominent lesion was the psoriasiform hyperplasia with acanthosis, down growth of rete ridges, exocytosis of eosinophils and neutrophils, ballooning degeneration of superficial epidermis, and koilocytic degeneration of keratinocytes. Additionally, there were moderate dermal edema and severe mixed cellular infiltration, especially eosinophils. No infectious agent which can cause the skin lesion, was detected or cultured, and no lesion caused by infectious agents was also observed, pathologically. With pathological results of this study, it is supposed that pathogenesis or severity of PJPPD may be related to the infiltration of eosinophil or hypersensitivity.

• 한국임상수의학회지
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• 제28권5호
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• pp.538-541
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• 2011

8세의 중성화 수술을 한 요크셔테리어종견이 재발성표재성농피증을 호소하여 경북대학교 수의과대학 부속동물병원에 내원하였다. 내원 당시 전신에 다수의 농포와 구진이 관찰되었다. 농포의 압착도말염색 표본에서 다수의 간 균과 상대적으로 적은 수의 구균이 함께 관찰되어, 각각 세균을 분리 동정한 결과 Proteus mirabilis와 Staphylococcus pseudointermedius으로 확인되었다. 4% 농도의 클로르헥시딘 샴푸 약욕과 항생제감수성시험 결과에 의한 전신 enrofloxacin과 amoxicillin-clavulanic acid 치료를 병행한 결과 2주 후에는 임상증상이 현저히 개선되었고, 6주 후에는 임상증상이 완전히 사라졌다. 본 증례는 개에서 일반적인 항생제 치료에 응답하지 않는 재발성농피증의 경우 그람음성 간균의 혼합감염 가능성을 시사하였다.