scholarly journals Dermatofibrosarcoma on a postoperative scar

2021 ◽  
Vol 12 (e) ◽  
pp. 1-2
Author(s):  
Hindo Palamino ◽  
Siham Belmourida ◽  
Fatima Ezzahrae El Ghaitib
Keyword(s):  
Author(s):  
Ирина Александровна Шурыгина ◽  
Н.В. Зеленин ◽  
Г.Б. Гранина ◽  
М.Г. Шурыгин

Цель исследования: оценить влияние блокатора р38 МАРК SB203580 на дифференцировку фибробластов в зоне формирования послеоперационного рубца. Материалы и методы: На модели линейной кожно-мышечной раны у крыс линии Вистар оценено влияние локального введения блокатора р38 МАРК SB203580 в составе лекарственной пленки на дифференцировку фибробластов (n = 30) по сравнению с заживлением раны без введения активного вещества (n = 30). Проводили оценку количества коллагена в области раны, периоперационной зоне и интактной дерме, а также иммуноморфологическое окрашивание на CD34, CD45, ММР9 и актин в сроки от 2 часов до 30 суток. Результаты: Установлено, что применение блокатора р38 SB203580 приводило к значительному снижению интенсивности коллагенообразования в зоне формирующегося рубца. Так, у животных контрольной группы относительная площадь, занятая волокнами коллагена в зоне послеоперационной раны, закономерно возрастала в сроки от 3 до 30 суток, достигая максимальных значений к концу наблюдения - 73,54% [66,87; 78,01]. При введении SB203580 в течение всего срока наблюдения отмечалось достоверное снижение коллагенообразования в сравнении с группой контроля, к 30 суткам показатель составил 43,60% [41,05; 60,15] (р = 0.002). Введение SB203580 снижало привлечение прогениторных клеток фибробластического ряда в зону формирования послеоперационного рубца, повышало фиброкластическую активность. Aim. To assess effects of a p38 MAPK inhibitor, SB203580, on fibroblast differentiation in the zone of postoperative scar formation. Materials and methods. The effect of locally injected p38 MAPK inhibitor, SB203580, on fibroblast differentiation (n = 30) was compared with wound healing without an active substance injection (n = 30) on a model of linear musculocutaneous wound in Wistar rats weighing 220-250 g. We measured the amount of collagen in the wound zone, perioperative zone, and intact derma and conducted immunomorphological staining for CD34, CD45, MMP9, and actin at timepoints of 2 hours to 30 days. Results. The p38 inhibitor, SB203580, induced a significant decrease in collagenation intensity in the zone of forming scar. In Wistar rats of the control group, the percent area of collagen fibers in the zone of postoperative wound was increasing between days 3 and 30 and reached a maximum of 73.54 % [66.87; 78.01] by the end of observation period. The SB203580 injection significantly decreased collagenation over the entire period of observation compared with the control group (43.60 % [41.05; 60.15] by day 30, р = 0.002). The SB203580 injection decreased the engagement of fibroblastic progenitors in the zone of postoperative scar formation and increased the fibroclast activity.


1927 ◽  
Vol 23 (4) ◽  
pp. 479-479
Author(s):  
I. Savkov

Session of March, 8Demonstration of preparations of peptic postoperative ulcer on the material of the Surgery Department of the Lip Hospital.Demonstration of patient with disseminating form of cancer recurrence around postoperative scar after breast removal operation.


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Evangelia Papakonstantinou ◽  
Vasileios Kalles ◽  
Ioannis Papapanagiotou ◽  
Theodoros Piperos ◽  
Dimitrios Karakaxas ◽  
...  

Splenosis is a common benign condition that occurs after splenic rupture via trauma or surgery. The mechanism behind splenic cell autotransplantation begins with the splenic rupture, either from trauma or surgical removal. Splenosis is usually found incidentally and, unless symptomatic, surgical therapy is not indicated. Subcutaneous splenosis is an extremely rare form of splenosis, mostly observed in abdominal surgical scars. We report a case of subcutaneous splenosis, as well as a comprehensive review of the literature. In our case, a 43-year-old woman who had splenectomy after traumatic splenic rupture at the age of 7 years old presented for plastic reconstruction of her postoperative scar. Upon surgery, two asymptomatic subcutaneous nodules were incidentally discovered. The presence of splenic tissue was confirmed by the histological study. The nodules were not excised, as the patient was not symptomatic.


2009 ◽  
Vol 23 (5) ◽  
pp. 506-511 ◽  
Author(s):  
Zi Zhang ◽  
Demin Han ◽  
Shengzhong Zhang ◽  
Yehua Han ◽  
Wei Dai ◽  
...  

Background Patients with chronic rhinosinusitis (CRS) often remain symptomatic after technically proficient functional endoscopic sinus surgery. Current hypothesis indicates biofilms may contribute to the persistence of infection. However, few studies showed biofilms in postoperative patients. This study was designed to identify bacterial biofilms on postoperative mucosa, as well as to investigate the healing of sinus mucosa after surgery. Methods After intraoperative mucosa was obtained for assessment of biofilms, 27 patients were followed up for 6 months. Postoperative medications and symptoms were recorded. As indicated by endoscopic evaluation, biopsy specimens of postoperative edema, scar, or adhesion were obtained. Samples were prepared for scanning electron microscopy (SEM) and hematoxylin and eosin (H&E) staining. Results Fifteen postoperative samples were taken from the 20 patients with intraoperative biofilms. Under SEM, postoperative biofilms were identified in 4/6 scar samples and 5/9 edema samples. There was no significant difference in biofilm presence between samples of scar and edema. Microcolonies were also identified on postoperative scar under H&E staining. The presence of intraoperative and postoperative biofilms was correlated with the severity of preoperative Lund-MacKay computed tomography score and postoperative Lund-Kennedy endoscopic score. Compared with intraoperative samples, postoperative samples from the same nine patients significantly recovered from ciliary damage, metaplasia, and basement membrane thickness. Postoperative cultures were positive in samples with and without postoperative biofilms. Conclusion Biofilms persist after treatment, and may cause the unfavorable outcomes of surgery for CRS. The mucosa with biofilms can recover after surgery. Apparent bacterial plaque can be identified by H&E staining.


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