1.Cutaneous Cytomegalovirus Infection Presenting As Recalcitrant Bullous Pemphigoid Lesion
Gayun BAEK ; Taehan KOO ; Min-Soo KIM ; Mihn-Sook JUE
Annals of Dermatology 2023;35(Suppl1):S97-S99
Cytomegalovirus (CMV) infection is common among immunocompromised hosts; however, its cutaneous manifestation is considered rare in comparison to internal organ involvement. Clinical manifestations of cutaneous CMV infection generally include perioral or perianal ulcerations. On the other hand, autoimmune bullous dermatosis can have bullae and ulcerations similar to those caused by cutaneous CMV infection. Autoimmune bullous dermatosis requires treatment with immunosuppressive agents for relatively long periods, which may cause reduction of immunocompetence. Because of this iatrogenic immunosuppression, patients with autoimmune bullous dermatosis subsequently acquire increased risk for opportunistic infections. However, cases of bullous pemphigoid (BP) complicated by cutaneous CMV infection are rarely reported. Herein, we report the case of an 88-year-old male who had BP and subsequently recalcitrant perianal skin lesions, which were eventually diagnosed as cutaneous CMV infections.
2.Intralymphatic Histiocytosis Associated with Osteoarthritis: A Case Report
Taehan KOO ; Hyun Ji KANG ; Min-Soo KIM ; Mihn-Sook JUE
Annals of Dermatology 2022;34(3):225-227
Intralymphatic histiocytosis (ILH) is a rare cutaneous condition with uncertain pathogenesis. It is characterized by dilated lymphatic vessels that contain histiocytes within their lumina. Although the etiology of ILH remains unknown, it has been associated with various inflammatory and neoplastic diseases, such as rheumatoid arthritis (RA), reaction to metal joint implants and Merkel cell carcinoma, breast cancer and colon cancer. An 83-year-old female presented with an erythematous patch on the left forearm that had appeared six months previous. She had suffered from osteoarthritis (OA) and the cutaneous lesion was located in the vicinity of the affected joint. Skin biopsy from the lesion showed dilated dermal vessels and some ectatic vessels that contained many mononuclear histiocytes. Based on the clinical and histopathological findings, we diagnosed her with ILH with OA. Two sessions of intralesional triamcinolone acetonide injection (5 mg/ml) were administered to treat the skin lesion, which gradually improved over a period of a few months. We here report a rare case of ILH associated with degenerative OA.
4.Histopathological Examination of the Nail Plate and Comparison between Periodic Acid-Schiff and Gomori’s Methenamine Silver Stains for the Diagnosis of Onychomycosis
Gayun BAEK ; Taehan KOO ; Donghoon LEE ; Hyun Ji KANG ; Min-Soo KIM ; Younghye KIM ; Mihn-Sook JUE
Korean Journal of Dermatology 2021;59(8):618-623
Background:
A direct potassium hydroxide (KOH) smear is used to diagnose onychomycosis despite its broad sensitivity range. For a more accurate diagnosis, histopathologic examination can be used and consistently show high sensitivity.
Objective:
We investigated the value of histopathologic examination of the nail plate as a diagnostic tool for onychomycosis. We proposed effective routine diagnostic staining to compare sensitivity between periodic acid-Schiff (PAS) and Gomori’s methenamine silver (GMS) staining.
Methods:
This retrospective study was conducted from January 1, 2019 to May 31, 2020, and included 97 patients who showed negative results on direct KOH smear but had clinical manifestations that implied onychomycosis. We performed nail plate biopsy and PAS or GMS staining to identify fungal hyphae missed in the direct KOH smear. Sensitivity comparison between PAS and GMS was performed in co-stained samples.
Results:
Among 97 patients with 102 cases, 55 cases (53.9%) of onychomycosis were confirmed by histopathologic examination. A total of 68 patients (70.1%) had a previous medical history of antifungal agents within previous six months. PAS and GMS staining were concurrently performed in 73 cases, and onychomycosis was confirmed in 41 cases. The sensitivity of PAS was 100% (41/41), while that of GMS was 87.8% (36/41); this difference was not significant.
Conclusion
This study suggests that histologic examination of the nail plate is an effective tool to diagnose onychomycosis and can be performed with a direct KOH smear. Two staining methods, PAS and GMS, are recommended for concurrent performance to enhance the identification of fungal hyphae.
6.Histopathological Examination of the Nail Plate and Comparison between Periodic Acid-Schiff and Gomori’s Methenamine Silver Stains for the Diagnosis of Onychomycosis
Gayun BAEK ; Taehan KOO ; Donghoon LEE ; Hyun Ji KANG ; Min-Soo KIM ; Younghye KIM ; Mihn-Sook JUE
Korean Journal of Dermatology 2021;59(8):618-623
Background:
A direct potassium hydroxide (KOH) smear is used to diagnose onychomycosis despite its broad sensitivity range. For a more accurate diagnosis, histopathologic examination can be used and consistently show high sensitivity.
Objective:
We investigated the value of histopathologic examination of the nail plate as a diagnostic tool for onychomycosis. We proposed effective routine diagnostic staining to compare sensitivity between periodic acid-Schiff (PAS) and Gomori’s methenamine silver (GMS) staining.
Methods:
This retrospective study was conducted from January 1, 2019 to May 31, 2020, and included 97 patients who showed negative results on direct KOH smear but had clinical manifestations that implied onychomycosis. We performed nail plate biopsy and PAS or GMS staining to identify fungal hyphae missed in the direct KOH smear. Sensitivity comparison between PAS and GMS was performed in co-stained samples.
Results:
Among 97 patients with 102 cases, 55 cases (53.9%) of onychomycosis were confirmed by histopathologic examination. A total of 68 patients (70.1%) had a previous medical history of antifungal agents within previous six months. PAS and GMS staining were concurrently performed in 73 cases, and onychomycosis was confirmed in 41 cases. The sensitivity of PAS was 100% (41/41), while that of GMS was 87.8% (36/41); this difference was not significant.
Conclusion
This study suggests that histologic examination of the nail plate is an effective tool to diagnose onychomycosis and can be performed with a direct KOH smear. Two staining methods, PAS and GMS, are recommended for concurrent performance to enhance the identification of fungal hyphae.
7.A Case of Solitary Fibrofolliculoma on the Antitragus of the Ear
Taehan KOO ; Gayun BAEK ; Eunjung PARK ; Mingyul JO ; Ji-Ho PARK ; Min Soo KIM ; Mihn-Sook JUE
Korean Journal of Dermatology 2020;58(7):472-475
Fibrofolliculoma is a benign perifollicular connective tissue tumor that usually occurs in the face. Most fibrofolliculoma present as multiple lesions and typically occur with trichodiscomas and acrochordons, constituting the Birt-Hogg-Dube syndrome. Solitary fibrofolliculoma is nonhereditary and unassociated with other cutaneous abnormalities. A 72-year-old man visited our clinic complaining of a solitary umbilicated nodule on the antitragus of the left ear. Skin biopsy from the lesion showed a central dilated follicular infundibulum with anastomosing bands of follicular epithelium extending into the fibrous stroma. The diagnosis of a solitary fibrofolliculoma was made based on the clinical and histopathological findings. No signs of lesion recurrence for 1 year after shave removal were noted. We report a rare case of solitary fibrofolliculoma that occurred on the antitragus of the ear.
9.Probiotics Used for Respiratory Diseases.
Yungoh SHIN ; Taehan KIM ; Keun KIM
Journal of Bacteriology and Virology 2015;45(2):79-92
Continuous increase of bacterial resistance to antibiotics causes many problems such as the advent of resistance to pathogenic bacteria, difficulty of microbial disease treatments, environmental pollution and others. It is inevitable to find potential substitutes for antibiotics in order to solve the above mentioned problems. Recently many literatures have shown that probiotics could be applied to the treatment or amelioration of respiratory diseases in addition to intensively studied gut related diseases. Target diseases for collecting data and analysis of the efficacies were chosen because viral respiratory infections are the most common diseases in humans. They were mainly viral diseases like common colds, pneumonia in addition to allergies and asthma. Papers on clinical efficacies, safety risks and mechanisms of microbial action of respiratory diseases were secured through known information sites and analyzed for their exact evaluations. The present analysis of research results on probiotics efficacies for respiratory diseases showed discrepancies in efficacies. On the whole, half to one third of papers reviewed only showed certain level of efficacies against respiratory viral diseases. It is very difficult to compare the results directly because the studies varied highly in study design, outcome measures, probiotics, dose, and matrices used. However, the results obtained so far show the potential applications of probiotics to the prevention or amelioration of the diseases. Conclusively, further well organized studies using randomized, double-blind, placebo-controlled clinical trials are needed to elucidate the realities of probiotics on respiratory related diseases and to obtain more definite efficacy results.
Anti-Bacterial Agents
;
Asthma
;
Bacteria
;
Common Cold
;
Environmental Pollution
;
Humans
;
Hypersensitivity
;
Outcome Assessment (Health Care)
;
Pneumonia
;
Probiotics*
;
Respiratory Tract Infections
;
Virus Diseases
10.Early Experiences of the Transurethral Needle Ablation(TUNA) in BPH.
Taehyo KIM ; Tai Young AHN ; Taehan PARK
Korean Journal of Urology 1999;40(1):63-67
PURPOSE: TUNA is a new minimally invasive treatment modality for the patients with benign prostatic hyperplasia of prostate utilizing low levels of radiofrequency energy. We presented our early experiences of TUNA for the treatment of BPH to evaluate its clinical outcome. MATERIALS AND METHODS: From July 1995 to March 1997, 36 patients were treated with TUNA(15 with manual system, 21 with automatic system). Mean age of the patients was 63.5 years. All patients were evaluated preoperatively with PSA, AUA symptom score, uroflowmetry and transrectal ultrasonography(TRUS). AUA symptom score at 1, 3, 12 month and uroflowmetry at 1, 3 month postoperatively were available for analysis. RESULTS: Mean PSA value was 3.4ng/ml and mean prostate volume by TRUS was 35.5gram preoperatively. Nine out of 36 procedures were performed with local anesthesia. Mean operating time was 45.6 minutes. At postoperative 3 and 12 month, symptom score was improved from 22.0+/-1.5 to 11.7+/-1.6 and 11.0+/-1.9(p<0.05), respectively and maximal flow rate was increased from 11.2+/-0.7ml/sec to 14.4+/-1.5ml/sec at postoperative 3 month(p<0.05). Results have been far better since using automatic system. Complications were observed in one patient with clot retention and in 11 patients with postoperative urinary retention. CONCLUSIONS: TUNA is a simple, safe, efficacious and minimally invasive treatment procedure with short hospital stay, less morbidity for treatment of the patients with BPH. It could also be performed with local anesthesia. We suggest that TUNA would be a new promising treatment modality for BPH.
Anesthesia, Local
;
Humans
;
Hyperthermia, Induced
;
Length of Stay
;
Needles*
;
Prostate
;
Prostatic Hyperplasia
;
Tuna
;
Urinary Retention

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