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( Woo Jin Lee ),( Mi Hye Lee ),( Joon Min Jung ),( Chong Hyun Won ),( Sung Eun Chang ),( Jee Ho Choi ),( Kee Chan Moon ),( Mi Woo Lee ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: Dermatofibroma (DF) sometimes clinically presents as a subcutaneous nodule without extending to the surface. Clinicopathologic features of DF clinically presenting as a subcutaneous nodule have not been evaluated. Objectives: This study reviewed the clinical and histological features of 42 cases of DF clinically presenting as a subcutaneous nodule and compared them with 95 cases of conventional DF. Methods: We performed a retrospective evaluation of 672 DF cases diagnosed at our institution between June 2003 and July 2013. The pathological diagnosis of DF was based on the detection of the immunophenotypical characteristics: factor XIIIa positivity and CD34 negativity. Results: DFs clinically presenting as a subcutaneous nodule were associated with shorter pre-diagnosis duration than conventional DFs, and the occurrence of size increase during the pre-diagnosis period was significantly more frequent in conventional DFs. In addition, DFs clinically presenting as a subcutaneous nodule were more likely than conventional DFs to occur in the head and neck region. Although the tumor depth was deeper than in conventional DFs, less than half of the DFs clinically diagnosed as a subcutaneous nodule were found histologically to be “subcutaneous” or “deep-penetrating DFs”. Conclusion: The present study suggests that DF clinically presenting as a subcutaneous nodule is a variant DF with distinct clinical and histological features that distinguish them from conventional DF.
[FCP 2] Subcutaneous cholesterol nodule
( Jaeyeon Ryu ),( Hyunji Lee ),( Hyun-min Seo ),( Chul Hwan Bang ),( Ji Hyun Lee ),( Jun Young Lee ),( Young Min Park ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1
A 71-year-old man presented with a painful subcutaneous nodule on the right shin; examination revealed tenderness and swelling. The patient had a history of end-stage renal disease, diabetes mellitus, hypertension and dyslipidemia. Ultrasonography revealed diffusely increased echogenicity combined with high echogenic punctuate lesions. A punch biopsy specimen revealed cholesterol 2clefts from the dermis to the subcutaneous fat. The aspiration of effusion around the nodule showed cholesterol crystals under polarized light microscopy. These crystals showed typical flat, rectangular crystals with notched corners. These findings were consistent with a subcutaneous cholesterol nodule. Intralesional injection of triamcinolone acetonide was administered. After two injections at intervals of two weeks, there was clinical improvement of swelling and pain. Although the nodule remained, the patient refused further treatment. Subcutaneous cholesterol nodules are rare conditions and accepted as benign in nature. They do not associate to any kind of systemic disease or arthropathy. The pathophysiology is still poorly understood. It is generally mistaken for a gouty tophus. We report a case with subcutaneous cholesterol nodule to discuss the clinical presentation and diagnostic procedure.
조혜진 ( Hye Jin Cho ),이주흥 ( Joo Heung Lee ),양준모 ( Jun Mo Yang ),이일수 ( Eil Soo Lee ),김원석 ( Won Serk Kim ),이가영 ( Ga Young Lee ),김계정 ( Kea Jeung Kim ) 대한피부과학회 2007 大韓皮膚科學會誌 Vol.45 No.6
Background: Ultrasonographic imaging is very useful tool to determine various neoplasms and inflammatory changes of the human body. In addition, thanks to the use of various frequencies in ultrasonography, subcutaneous and some dermal lesions can be evaluated without invasive procedures such as a biopsy. Objective: This study was performed to evaluate the usefulness of ultrasonography in the diagnosis of subcutaneous nodules. Methods: We reviewed the medical records of 29 patients with subcutaneous nodules and analyzed the correlation between ultrasonographic findings and final biopsy findings. The HDI-5000 ultrasonography system (Philips, Eindhoven, Netherlands) with variable probes (from 5 to 12 MHz) was used in this study. Results: In 27 patients, ultrasonographic findings were matched with final biopsy findings. One pilomatricoma was misdiagnosed as a cyst and one hemangioma as lipoma. It was very interesting to find that two malignant tumors and one subcutaneous granuloma annulare were detected by ultrasonographic examination in the absence of any clinical clues. Conclusion: Ultrasonography is a very useful, noninvasive, easy to apply, and relatively predictive tool for the evaluation of subcutaneous nodules. Although a skin biopsy is necessary for final diagnosis, ultrasonography would be a good substitute in the diagnosis of subcutaneous nodules when the patient refuses a skin biopsy and the nodule is located in a highly cosmetic area. (Korean J Dermatol 2007;45(6):529∼533)
피하 결절의 진단에 있어 초음파 검사의 정확성에 대한 통계적 연구
김윤환 ( Yoon Hwan Kim ),이승재 ( Seung Jae Lee ),박지혜 ( Ji Hye Park ),최종원 ( Chong Won Choi ),이가영 ( Ga Young Lee ),김원석 ( Won Serk Kim ) 대한피부과학회 2013 대한피부과학회지 Vol.51 No.6
Background: Ultrasonography is an important diagnostic tool for many aspects of clinical medicine. It is a non-invasive method of examination that provides high-resolution images in real time. However, some dermatologists may be anxious about the efficacy of ultrasonography. Objective: To evaluate the diagnostic accuracy and to assess the utility of diagnostic ultrasonography for subcutaneous benign lesions. Methods: The study included 96 patients with subcutaneous benign lesions who underwent ultrasonography and then received a pathologic diagnosis after biopsy or surgery at our hospital from July 2010 to December 2012. This study evaluated the number of cases in which the preoperative diagnosis after ultrasonography or just after physical examination agreed to the pathologic diagnosis. Results: Ultrasonography significantly increased the diagnostic yield of subcutaneous benign lesions (after physical examination, 54.2%; after ultrasonography, 84.4%; p<0.001). The sensitivity for the diagnosis of lipoma (after physical examination, 70%; after ultrasonography, 92.5%; p<0.001) and the specificity for the diagnosis of epidermal cyst (after physical examination, 84.1%; after ultrasonography, 94.2%; p<0.001) significantly increased after ultrasonography. The sensitivity for the diagnosis of epidermal cyst and pilomatricoma also tended to increase after ultrasonography. Conclusion: The study results suggested that ultrasonography is useful for diagnosis and/or preoperative examination of subcutaneous benign lesions.
( Min Young Lee ),( Jee-bum Lee ),( Seung-chul Lee ),( Young Ho Won ),( Sook Jung Yun ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1
A 36-year-old man presented with subcutaneous nodule on the right upper arm. A small nodule developed 8 years ago, and grew in size and was accompanied by tingling sensation and numbness from 1 month prior. Also, he had bluish irregular 12 x 12 cm sized patches on his right hand since birth, which crossed from palm to the hand dorsum. During excision, the nodule was closely located along the median nerve, and was observed as a large black oval pedunculated tumor with 6 cm length. Histopathologically, the tumor on the arm showed large cellular nodule without atypia on one part which was diagnosed as subcutaneous cellular nodule, and heavily pigmented epithelioid cells on the other area, which was diagnosed with pigmented epithelioid melanocytoma. Skin biopsy from the hand showed heavily pigmented dendritic cells proliferation in the dermis with perieccrine, perivascular, and perineural involvements. We diagnosed the hand lesion as plaque-type blue nevus. The next generation sequencing to find the genetic change was performed with formalin-fixed, paraffin-embedded block. The subcutaneous cellular nodule had GNAQ mutation of c.626A>C (Q209P) on exon 5, and c.303C>A (Y101<sup>*</sup>) on exon 2. The pigmented epithelioid melanocytoma had GNAQ mutation of exon 5 c.626A>C (Q209P).
이준영(Jun Young Lee),박천욱(Chun Wook Park),조백기(Baik Kee Cho),허원(Won Hugh),조문제(Moon Jae Cho) 대한피부과학회 1986 대한피부과학회지 Vol.24 No.2
We report herein a case of subcutaneous granuloma annulare occured in a 3-year-old girl who had 7 subcutaneous nodules on the scalp, lumbar area, buttock, right tibial area and both ankles. liistopathologically, multiple foci of complete and incomplete collagen degeneration surrounded by histiocytes in a palisading arrangement were seen in the subcutaneous layer. Some vessel walls were thickened and infiltrated with inflammatory cells and many eosinophils were scattered among the inflamrnatory cell infiltrate around the palisaiing granuloma. Five of the lesions disappeared spontaneously and other s decreased in size without specific treatment in 2 months.
Efficacy of diagnostic ultrasonography of subcutaneous tumors
( Yoon Hwan Kim ),( Hyun Min Seo ),( Sang Hyeon Hwang ),( Heun Joo Lee ),( Joon Hong Min ),( Joon Lee ),( You Jin Yang ),( Seung Jae Lee ),( Ji Hye Park ),( Chong Won Choi ),( Ga Young Lee ),( Soo Hon 대한피부과학회 2012 대한피부과학회 학술발표대회집 Vol.64 No.3
Successful treatment of subcutaneous sarcoidosis with minocycline
( Jaewoong Choi ),( Sung Jay Choe ),( Won Soo Lee ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1
Subcutaneous sarcoidosis is known to be a rare subtype of cutaneous sarcoidosis. It is highly prone to have systemic involvement, and oral corticosteroid is generally accepted as the first line therapy when the evidence of internal organ involvement is obvious. However, according to the chronic course of subcutaneous sarcoidosis and its tendency of frequent recurrence, adverse effects of prolonged use of systemic corticosteroid cannot be ignored. Also, systemic corticosteroid cannot be taken into consideration in some patients. In this case, tetracycline was used based on the fact that it is generally accepted as a safe and effective medication in treatment of broad spectrum of cutaneous disease, and its property of granuloma formation inhibition. It has been proven that minocycline is effective in treatment of sarcoidosis, but there have been only one case report about the efficacy of minocycline on the treatment of subcutaneous sarcoidosis, a rare subtype of sarcoidosis. Herein we report a rare and interesting case of cutaneous sarcoidosis, which showed a significant clinical improvement upon use of minocycline.
문상은 (Sang Eun Moon) 대한피부과학회 1995 大韓皮膚科學會誌 Vol.33 No.5
Background : The occurane of sarcoidosis seems to be increased recently. A proportion of patients initiallly visit the derrnatological department. However, there are few clinical reports about sarcoidosis for the dermatolagist. Objective : This study wa performed to find the clinical and histopathological characteristis of sarcoidosis as a multisystemic disease. Methods : We reviwed the chart of patients with sarcoidosis who were diagnosed at SNUH from 1984 to 1994 and analysed the characteristics of the clinical and histopathologic findings according to several factors. Results : 1)Man to woman ratio was 1: 2 and 70% of patients were in theirs third to fifth decades. 2)The main complaints were respiratory symtoms and cutaneous lesion. 3)The most frequently invloved organ was intrathoracic, followed by skin, peripheral lymph node, eye and bone in that order. 4)The cutaneous lesion was found in 50% of patients(15 out of 30) and specitic lesions were present in 14 cases. A subcitaneous nodule was the most common lesion(67%). 5)In subcutaenous sarcoicosis, there was hilar lymphadenopathy in 70% of the patients, lung parenchymal infiltration in 10%, peripheral lymphadenopathy in 30%, bony lesion in 30%. 6)The laboratory and histopathological findings were similar to previously reported results. Conclusion : The general features of patients were similar to other reports except for the fre quency of cutaneous involviment. Cutaneous involvement was found in 50% of patients and this was higher than in foreigr reports. In cutaneous sarcoidosis, the subcutaneous nodule was the most frequent specific lesior. (Kor J Dermatol 1995;33(5): 922-930)