• Title/Summary/Keyword: Keloid

Search Result 41, Processing Time 0.022 seconds

Usefulness of Modified Facelift Incision for Parotidectomy (이하선절제술시 Modified Facelift 절개의 유용성)

  • Kim Dong-Young;Lim Young-Chang;Choi Eun-Chang
    • Korean Journal of Head & Neck Oncology
    • /
    • v.16 no.1
    • /
    • pp.37-41
    • /
    • 2000
  • Background and Objectives: The most commonly used incision for parotidectomy is modified Blair incision, but it has unsatisfactory cosmetic result due to long exposed scar in the neck. Therefore, we introduce an alternative approach with more acceptable scar named modified facelift incision. We report it's techniques, indications and disadvantages with our experiences. Materials and Methods: During the 1999, 15 patients were underwent parotidectomies using modified facelift incision. We studied the postoperative complications and the cosmetic results respectively. Results: There were 11 benign tumors, 3 malignant tumors, and 1 chronic inflammation. Total parotidectomy was performed in 2 malignant tumors and chronic parotitis patients. The others has superficial parotidectomy. In terms of operation field, there was no difference between classical incision and facelift incision. Partial facial nerve palsy was noted in 2 cases, who required sacrifice of branches of facial nerve because of malignant tumor invasion. There were no specific complications associated with this type of approach. Postoperative cosmetic results were satisfactory in all cases. Conclusion: Modified facelift incision provides better cosmetic result than conventional incision without narrowing of operation field. We believe that it is a safe alternative approach to all parotidectomy cases especially to women and patient with keloid skin. The only limitation of this incision is poor adaptability for combining neck dissection.

  • PDF

Effects of Aqueous Extracts from Angelica dahurica Benth. on ${\alpha}-Melanocyte$ Stimulating Hormone-induced Melanogenesis in Bl6 Mouse Melanoma Cell (백지(白芷)의 ${\alpha}-Melanocyte$ Stimulating Hormone에 의해 유도된 Bl6 흑색종 세포의 멜라닌 형성에 미치는 영향)

  • Hong, Ui-Suk;Lee, Jun-Hyuk;Choi, Byung-Tae;Yoon, Hwa-Jung;Ko, Woo-Shin
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.18 no.1
    • /
    • pp.1-12
    • /
    • 2005
  • Melanin determines phenotypic appearance and its election-opaque property protects cells from physical, including ultraviolet (UV) radiation, and chemical stimuli such as free radicals. However hyper-pigmentation is associated with various skin diseases such as keloid scar. The aim of present study was to investigate the effects of aqueous extracts from Angelica dahurica Benth. (AEAD) on ${\alpha}-Melanocyte$ stimulating hormone $({\alpha}-MSH)-induced$ melanogenesis in B16 mouse melanoma cell. Relative high doses ($5\;mg/m{\ell}$) of AEAD could inhibit melanin formation without apoptotic death in cells treated with ${\alpha}-MSH$. And also, ${\alpha}-MSH-induced$ activation of tyrosinase was inhibited in cells treated with AEAD. These results suggest that AEAD inhibit melanogenesis through inhibiting tyrosinase activity, and also, AEAD may apply to develop whitening drugs and cosmetics.

  • PDF

Steroid Injection on Facial Hypertrophic Scar: Report of 3 Cases (안면부 비후성 반흔에 스테로이드 주사: 증례보고)

  • Lee, Bada;Kwon, Jin-Il;Lim, Jae-Seok;Baek, Jiwoong;Park, Jin Hoo;Kim, Hyung Jun
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.34 no.6
    • /
    • pp.494-497
    • /
    • 2012
  • Traumatic lacerations are common in the orofacial region as a result of accidents. Due to the frequent movement of the skin around the mandible, scars in that area are more likely to widen or become hypertrophic. Treatment of facial laceration was performed on three patients and followed by regular check-up. It was discovered that the scars have become hypertrophic, so steroid injections were used. The results were satisfactory with the decrease in sizes and hardnes of the scar. Facial scarring is a particularly distressing phenomenon and has always been a challenge to treat as the scars are more likely to widen or become hyphertrophied due to the frequent movement of the muscle in the facial area. We confirmed that the positive effect of steroid on hypertrophic scars. So, we suggest that proper treatment and periodic follow-up, adjuvant treatments especially steroid injection is necessary in patients with lacerations.

Analysis of Frequency of Use of Different Scar Assessment Scales Based on the Scar Condition and Treatment Method

  • Bae, Seong Hwan;Bae, Yong Chan
    • Archives of Plastic Surgery
    • /
    • v.41 no.2
    • /
    • pp.111-115
    • /
    • 2014
  • Analysis of scars in various conditions is essential, but no consensus had been reached on the scar assessment scale to select for a given condition. We reviewed papers to determine the scar assessment scale selected depending on the scar condition and treatment method. We searched PubMed for articles published since 2000 with the contents of the scar evaluation using a scar assessment scale with a Journal Citation Report impact factor >0.5. Among them, 96 articles that conducted a scar evaluation using a scar assessment scale were reviewed and analyzed. The scar assessment scales were identified and organized by various criteria. Among the types of scar assessment scales, the Patient and Observer Scar Assessment Scale (POSAS) was found to be the most frequently used scale. As for the assessment of newly developed operative scars, the POSAS was most used. Meanwhile, for categories depending on the treatment methods for preexisting scars, the Vancouver Scar Scale (VSS) was used in 6 studies following a laser treatment, the POSAS was used in 7 studies following surgical treatment, and the POSAS was used in 7 studies following a conservative treatment. Within the 12 categories of scar status, the VSS showed the highest frequency in 6 categories and the POSAS showed the highest frequency in the other 6 categories. According to our reviews, the POSAS and VSS are the most frequently used scar assessment scales. In the future, an optimal, universal scar scoring system is needed in order to better evaluate and treat pathologic scarring.

USEFULNESS OF MIDFACIAL DEGLOVING APPROACH IN ORAL & MAXILLOFACIAL REGION (구강악안면외과 영역에서의 MIDFACIAL DEGLOVING APPROACH의 유용성)

  • Cha, In-Ho;Yoon, Hyun-Joong;Lee, Eui-Wung
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.20 no.3
    • /
    • pp.214-216
    • /
    • 1998
  • In the treatment of maxillary lesion including a maxillary sinuses, most of oral and maxillofacial surgeons have used the vestibular incision or the Weber-Fergusson incision. However, the vestibular incision has disadvantage which it provides a rather limited exposure and the Weber-Fergusson incision leaves visible scar in the midface. Furthermore, because the scar is confined on unilateral side only, the technique is hesitated to apply especially in children, younger patients and women. Since Casson first introduced midfacial degloving technique, this approach has been used frequently to treat the lesion on nasal cavity, nasopharynx, skull base and paranasal sinuses by ENT surgeons. But, we think this technique can be used usefully in oral and maxillofacial regions. So, we experienced favorable results which it provided a proper exposure, no visible facial scar and it could be used on bilateral midfacial lesions.

  • PDF

Early Results of the Sternocostal Elevation for Pectus Excavatum (Sternocostal elavation술의 누두흉 교정효과)

  • An, Byeong-Hui;Seon, Hyeon
    • Journal of Chest Surgery
    • /
    • v.25 no.6
    • /
    • pp.621-629
    • /
    • 1992
  • Thirteen sternocosal elevations for pectus excavatum were performed on twelve patients between Jan 1989 and Sep. 1991. Eleven among the twleve patients were male. The subjects ranged in age from 2 years to 20 years, with a mean age of 8.33 years[SD=4.80 years], Eleven patients were below 15 years. The early postoperative evaluation by Humphreys` criteria except keloid formation was excellent in all the patients. The lower vertebral index[LVI], configuration index[CI], and upper vertebral index[UVI] were measured on the lateral chest roentgenogram. The LVI and CI improved significantly from 0.31$\pm$0.06 and 1.14$\pm$0.06 preoperatively to 0.25$\pm$0.03 and 0.78$\pm$1.10 postoperatively. The degrees of depression, flatness, and asymmetry and funnel index were measured at the most deformed portion on the computed tomgram performed pre- and postoperatively. The degrees of depression and funnel index improved significantly from 3.32$\pm$0.73 and 5.77$\pm$1. 54 preoperatively to 1.85$\pm$0.14 and 2.96$\pm$0.43 postoperatively, There was no significant change in the degree of flatness however, Six postoperative morbidities occurred in five patients Three were superficial wound infection, two hemopneumothorax, and one reoeration, Reoperation was performed due to forward displacement of the distal sternum below the posterior sternotomy, The findings of this study suggest that the sternocostal elevation is an excellent primary method for the pectus excavatum of children and young adolescents.

  • PDF

Dermatofibrosarcoma Protuberans of the Head and Neck:Report of 6 Cases (두경부에서 발생한 융기성 피부섬유육종 치험 6례)

  • Seo, Hyo-Seok;Seo, Sang-Won;Chang, Choong-Hyun;Kang, Min-Gu;Chang, Hak
    • Korean Journal of Head & Neck Oncology
    • /
    • v.24 no.2
    • /
    • pp.203-206
    • /
    • 2008
  • Objectives:DFSP(Dermatofibrosarcoma protuberans) is an uncommon, slowly growing, locally invasive malignant tumor that usually presents as a painless, often long-standing mass arising in the dermis of skin. It occurs most frequently on the trunk and proximal parts of the limbs, less commonly in the head and neck region and has a frequent tendency to recur after surgical excision. Clinically, the initial appearance of the tumor similar to that of benign tumor such as keloid and dermatofibroma. Therefore, accurate clinical diagnosis and adequate surgical excision are important. Materials and Methods:We experienced 6 patients of DFSP in head and neck during the recent 6 years, 5 male and 1 female patients. The age of the patients ranged from 31 to 66. As reconstructive methods, the authors used cervicofacial flap, trapezius musculocutaneous flap, TRAM flap, anterolateral thigh free flap and skin graft. Results:The patients were followed up after operation from 24 to 79 months and all remained free of disease except one case, who occurred at forehead area. Conclusion:We present the experience of 6 cases of DFSP occurred in head and neck. We obtained satisfactory results with appropriate diagnosis and treatment which wide excision with surgical margins 3-5cm. We also present an operative plan of this locally aggressive and highly recurrent tumor.

Operative Treatment of Fractures of the Midshaft Clavicle using Locking Compression Plate (Locking Compression Plate를 이용한 전위성 쇄골 간부 골절의 수술적 치료)

  • Chung, Nam-Sik;Hong, Ki-Do;Ha, Sung-Sik;Park, Sung-Joon;Kang, Jung-Ho;Sim, Jae-Cheon
    • Journal of Korean Orthopaedic Sports Medicine
    • /
    • v.5 no.1
    • /
    • pp.63-68
    • /
    • 2006
  • Purpose: To assess the effectiveness of the Locking compression plate (LCP) after open reduction for the treatment of the displaced clavicular shaft fracture, the clinical and radiologic outcome of the patients who were managed with the LCP for internal fixation after open reduction has been analyzed. Materials and Methods: We reviewed 26 cases with a displaced clavicular shaft fracture treated by internal fixation using Locking compression plate after open reduction between May 2003 and November 2004. The patients were followed up for at least six months period, and final postoperative outcome was evaluated using clinical results based on Kang's criteria, radiologic signs of fusion. Results: All fractures united by an average of 9.3 weeks without delayed union and showed fast recovery of motion fraction and shoulder function. In addition,24 cases without the fractures of proximal humerus recovered to normal range of shoulder notion within 2.9 weeks. Clinically, according to Kang's criteria, the outcome was good or better in 22 patients. The complications included shoulder joint dysfunction in two cases and keloid formation in one case, and no other complications were observed. Conclusion: The internal fixation using LCP for the treatment of displaced clavicular shaft fracture is a safe, reliable method of treatment, with few complications, and offers rapid recovery of shoulder joint function and bone union.

  • PDF

PRODUCTION OF TRANSFORMING GROWTH FACTOR-${\beta}_1$ IN HUMAN FIBROBLASTS INDUCED WITH BACTERIAL TOXINS (세균 독소를 작용시킨 섬유아 세포에서 Transforming Growth Factor-${\beta}_1$의 생성)

  • Lee, Seong-Geun;Kim, Kwang-Hyuk
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.26 no.4
    • /
    • pp.345-354
    • /
    • 2000
  • TGF-${\beta}_1$ is a potent chemotactic factor for inflammatory cells and fibroblasts. It also stimulates the celluar source and components of extracellular matrix and the production of proteinase inhibitors. Collectively, these biologic activities lead to the accumulation and stabilization of the nascent matrix, which is vital to wound healing. The objective of this study is to investigate production of TGF-${\beta}_1$ in vitro fibroblast culture in the presence of Staphylococcus enterotoxin B(SEB) and/or lipopolysaccharide(LPS) and to elucidate the role of TGF-${\beta}_1$ which may be responsible for wound healing. The fibroblasts were originated from facial dermis and hypertrophic scar in 26 year-old male patient. In the presence of LPS($0.01{\mu}g$, $0.1{\mu}g$, $1.0{\mu}g$), SEB($0.01{\mu}g$, $0.1{\mu}g$, $1.0{\mu}g$) respectively, cells($5{\times}10^3ml$) were cultivated in vitro. At 1, 3, and 5 days after incubation, cells were counted. Also, cells($2.5{\times}10^5ml$) were cultivated in EMEM with LPS(0.01, 0.1 and $1.0{\mu}g$), SEB(0.01, 0.1 and $1.0{\mu}g$) respectively and LPS($0.1{\mu}g$) and SEB($0.1{\mu}g$) in combination for 24, 48, and 72 hours respectively. Culture supernatants were harvested at 1, 2, and 3 days after incubation period and triplicate culture supernatants were pooled and TGF-${\beta}_1$ was assayed in duplicate. The results were as follows. 1. In facial dermal fibroblast induced with SEB and LPS respectively or in combination, the suppression of cell proliferation occurred very significantly at 1 day after incubation, compared with the control. In SEB exposure, the production of TGF-${\beta}_1$ was decreased very significantly at 1 day after incubation, compared with the control. However, in LPS, SEB and LPS exposure, the production of TGF-${\beta}_1$ was increased very significantly at 1 day after incubation, compared with the control. 2. In hypertrophic scar fibroblast induced with SEB and LPS respectively or in combination, the suppression of cell proliferation did not occur at 1 day after incubation, compared with the control. In SEB and LPS exposure in combination, the production of TGF-${\beta}_1$ was increased very significantly at 1 day after incubation, compared with the control. However, the production of TGF-${\beta}_1$ did not occur in SEB and LPS exposure respectively. In conclusion, the concentration of bacterial toxins and the incubation period correlated with cell proliferation and production of TGF-${\beta}_1$ very significantly and both fibroblasts have different phenotype each other in this regard. This data suggest that the significant production of TGF-${\beta}_1$ may develope abnormal wound healing associated with tissue fibroproliferative disorder, such as hypertrophic scar and keloid formation.

  • PDF

Clinical analysis and review of literature on pilomatrixoma in pediatric patients

  • Hu, Ju Long;Yoo, Hyokyung;Kwon, Sung Tack;Kim, Sukwha;Chung, Jee Hyeok;Kim, Hyeonwoo;Kim, Jinhyun;Yu, Na Hee;Kim, Byung Jun
    • Archives of Craniofacial Surgery
    • /
    • v.21 no.5
    • /
    • pp.288-293
    • /
    • 2020
  • Background: Pilomatrixoma is a benign tumor that originates from the hair follicle matrix. It usually presents as a hard, slow growing, solitary mass that can be easily misdiagnosed as other skin masses. The aim of this study was to clinically analyze a case series of pilomatrixoma in pediatric patients from Korea. Methods: A total of 165 pediatric patients from 2011 to 2018 with a histological diagnosis of pilomatrixoma were included. A retrospective review was performed using the electronic medical records, including patient demographics, number and location of the mass, clinical and imaging presentation, and postoperative outcomes. Results: There were 61 male and 104 female patients with 152 solitary and 13 multiple pilomatrixomas. Among solitary pilomatrixomas, the lesion commonly occurred in the head and neck (84.2%), followed by upper limbs (11.2%), lower limbs (3.3%), and trunk (1.3%). The pilomatrixoma lesion presented as the following types based on our clinical classification: mass (56.02%), pigmentation (25.31%), mixed (12.65%), ulceration (4.82%), and keloid-like (1.2%). Ultrasonography showed a high positive predictive value (95.56%). There were no specific complications observed except for two cases of recurrence. Conclusion: Pilomatrixoma has various clinical feature presentations and commonly occurs in the head and neck. Ultrasonography is a helpful diagnostic tool. Surgical removal of the lesion is the main treatment method with a low recurrence rate.