Staged penile skin reconstruction for sclerosing lipogranuloma / A hímvesszo borének helyreállítása szklerotizáló lipogranuloma okozta deformitás miatt.

Összefoglaló. Bevezetés: A hímtag körméretének növelése érdekében, az annak bore alá bejuttatott zsírnemu anyag szklerotizáló lipogranulomát okoz. Hazánkban a szklerotizáló lipogranuloma okozta hímvesszo-deformitások kezelésének legelterjedtebb módszere a két ülésben végzett borpótlás. Ennek ellenére a magyar nyelvu szakirodalomban kevés adat áll rendelkezésre a kétüléses mutét eredményességérol és várható szövodményeirol. Célkituzés: Tanulmányunkban a szklerotizáló lipogranuloma okozta deformitások miatti - két ülésben végzett - hímvesszobor-helyreállítással szerzett tapasztalatainkról, a mutét után kialakuló szövodményekrol számolunk be retrospektív adatgyujtés alapján. Módszer: 2008. március 1. és 2020. március 1. között a Debreceni Egyetem Urológiai Klinikáján 17 betegen végeztünk kétüléses hímvesszobor-helyreállító mutétet. A szklerotizáló lipogranuloma által érintett bort teljes mértékben eltávolítottuk, majd a lecsupaszított hímtagot a herezacskó elülso felszínén kialakított subcutan csatornába helyeztük. A második ülés során a herezacskó bore alá ültetett hímvesszot felszabadítottuk. Eredmények: A Clavien-Dindo-beosztás szerint az elso ülés után három, a második ülés után egy I. gradusú szövodmény alakult ki; II-V. gradusú szövodményt nem figyeltünk meg. Azon 9 beteg közül, akik mindkét ülésen átestek, 7 beteg elégedett volt a beavatkozás eredményével, 2 beteg korrekciós mutéten esett át fél és 9 évvel a második ülés után. A 8 beteg közül, akik csak ez elso ülést vállalták, egy korrekciós mutét történt 4 hónappal a mutét után. Következtetés: A hímvesszo szklerotizáló lipogranulomája esetén az érintett borterület kimetszése után hímvesszobor-helyreállítás szükséges. A herezacskó-borlebeny alkalmazásának elonye, hogy a herezacskó színe és elaszticitása a hímvesszoboréhez hasonló, a tapintás- és erogén érzet megmarad. A kétüléses hímvesszobor-helyreállítás kevés szövodménnyel, plasztikai sebészeti jártasság nélkül elvégezheto. Orv Hetil. 2021; 162(35): 1413-1417. INTRODUCTION: Subcutaneous injection of liquid fatty materials to enhance penile girth induce sclerosing lipogranuloma of the penis. In spite of its well known severe consequences there has been a persistent use of this practice in non-medical circumstances. OBJECTIVE: The aim of this paper is to present our observations with staged penile skin reconstruction for sclerosing lipogranuloma and to evaluate postoperative complications in a retrospective manner. METHOD: Between 2008 and 2020, 17 patients underwent surgery to treat sclerosing lipogranuloma of the penis by staged penile skin reconstruction at our department. Complete exscision of the involved tissue was performed, then the denuded penile shaft was inserted into a subcutaneous channel on the anterior side of the scrotum during the first stage. The second stage of reconstruction consisted of releasing the penile shaft from the scrotum. The second stage was performed merely on 9 in 17 patients. RESULTS: According to the Clavien-Dindo classification system, 3 grade I and 1 grade I complications occurred in the postoperative period after the first and second stage, respectively. Grade II-V complications were not observed. 7 of 9 patients who underwent both stages were satisfied with the final result, 2 patients had minor correction surgery 6 months and 9 years following the second stage. 1 of 8 patients who underwent only the first stage had minor correction surgery 4 months following the operation. CONCLUSION: In case of sclerosing lipogranuloma of the penis, excision of the affected tissue and reconstruction of the penile skin are indicated. Advantages of using scrotal skin flaps are that colour and elasticity of the scrotal skin are similar to penile skin, erogenous sensation of the scrotal flap remains intact. Applying staged penile skin reconstruction with scrotal skin flap has the advantage of few postoperative complications and it is easy to perform. Orv Hetil. 2021; 162(35): 1413-1417.

In Vivo Imaging of Experimental Melanoma Tumors using the Novel Radiotracer 68Ga-NODAGA-Procainamide (PCA).

PURPOSE: The most aggressive form of skin cancer is the malignant melanoma. Because of its high metastatic potential the early detection of primary melanoma tumors and metastases using non-invasive PET imaging determines the outcome of the disease. Previous studies have already shown that benzamide derivatives, such as procainamide (PCA) specifically bind to melanin pigment. The aim of this study was to synthesize and investigate the melanin specificity of the novel 68Ga-labeled NODAGA-PCA molecule in vitro and in vivo using PET techniques. METHODS: Procainamide (PCA) was conjugated with NODAGA chelator and was labeled with Ga-68 (68Ga-NODAGA-PCA). The melanin specificity of 68Ga-NODAGA-PCA was tested in vitro, ex vivo and in vivo using melanotic B16-F10 and amelanotic Melur melanoma cell lines. By subcutaneous and intravenous injection of melanoma cells tumor-bearing mice were prepared, on which biodistribution studies and small animal PET/CT scans were performed for 68Ga-NODAGA-PCA and 18FDG tracers. RESULTS: 68Ga-NODAGA-PCA was produced with high specific activity (14.9±3.9 GBq/µmol) and with excellent radiochemical purity (98%<), at all cases. In vitro experiments showed that 68Ga-NODAGA-PCA uptake of B16-F10 cells was significantly (p≤0.01) higher than Melur cells. Ex vivo biodistribution and in vivo PET/CT studies using subcutaneous and metastatic tumor models showed significantly (p≤0.01) higher 68Ga-NODAGA-PCA uptake in B16-F10 primary tumors and lung metastases in comparison with amelanotic Melur tumors. In experiments where 18FDG and 68Ga-NODAGA-PCA uptake of B16-F10 tumors was compared, we found that the tumor-to-muscle (T/M) and tumor-to-lung (T/L) ratios were significantly (p≤0.05 and p≤0.01) higher using 68Ga-NODAGA-PCA than the 18FDG accumulation. CONCLUSION: Our novel radiotracer 68Ga-NODAGA-PCA showed specific binding to the melanin producing experimental melanoma tumors. Therefore, 68Ga-NODAGA-PCA is a suitable diagnostic radiotracer for the detection of melanoma tumors and metastases in vivo.

[The Great Imitator. Case report]. / A nagy imitátor.

Authors present two patients suffering from renal tuberculosis, which caused differential diagnostic problems. The first patient was examined because of fever and left flank pain. Computed tomography revealed renal shrinkage on the left side. Retrograde pyelography demonstrated ureteric stricture and dilated calices. Urine culture showed Mycobacterium tuberculosis. Two months after initiation of the antituberculotic therapy nephrectomy was performed. The second patient was referred to the department because of fever after unsuccessful antibiotic treatment. Ultrasound examination showed a staghorn stone, dilated renal pelvis and perirenal abscess on the left side. Double J catheter insertion and percutaneous puncture of the abscess were performed. Culture of the pus aspirated proved Proteus morganii. Fever and complaints of the patient relieved after antibiotic treatment. Two months later double J catheter was changed because of persistent pyelonephritis. One week later the patient returned to the hospital with fever, which could not be reduced with intravenous antibiotics. Computed tomography showed purulent fluid in the left kidney, and nephrectomy was performed. Histology revealed renal tuberculosis. The authors summarize the diagnosis and treatment of renal tuberculosis on the basis of these two cases.

[Ostiolitholapaxy]. / Ostiolitholapaxia.

The authors developed a new, minimally invasive technique for the removal of impacted iuxtavesical ureteral stones, using nephroscope and a grasping forceps. They named this technique ostiolitholapaxy. The authors present their detailed technique and results. Between 1. 1. 1995 and 31. 12. 2006 48 operations were performed. In 41 cases the stones were removed successfully. In seven unsuccessful cases the stones were extracted by ureteroscopy. The authors worked up 41 successful cases presenting the steps and technical details of the procedure. Average stone size was 5,2 (3-12) mm. Male and female ratio was 23/18. In 19 patients local and in 22 patients spinal anaesthesia was performed. Among the patients who underwent local anaesthesia there were 13 (68,4%) female and 6 (31,6%) male patients. Average operating time was 8,5 (3,5-35) minutes. Mean follow-up time was 95,3 (2-143) months. The success rate of the procedure was 85,41%. There were no intraoperative complications. In the mentioned period no ureteral stricture and/or reflux-uropathy has developed. Due to the simplicity, efficacy of this technique and the fact that it can be performed even in local anaesthesia, this procedure can be useful in case of small symptomatic iuxtavesical stones as a quick and safe stone removal intervention.

A new technical approach for extraperitoneal laparoscopic bladder diverticulectomy.

In this paper, the authors report on a new, modified laparoscopic technique to remove a large bladder diverticulum. A 26-year-old male with a urinary problem underwent an ultrasound, as well as intravenous urography and cystoscopy examinations, which showed a large bladder diverticulum. The diverticulum was operated upon laparoscopically. The extraperitoneal laparoscopic intervention was facilitated by balloon placed into the diverticulum. The new technique for the laparoscopic diverticulumectomy procedure was successful and the operating time was 140 minutes. There were no perioperative complications. In conclusion, the laparoscopic removal of the bladder diverticulum is a safe and minimally invasive intervention. The introduction of a balloon into the diverticulum makes the operation easier.

Results of percutaneous endoscopic ureterolithotomy compared to that of ureteroscopy.

Percutaneous endoscopic ureterolithotomy is not a well-known method for the treatment of impacted ureteral stones. The authors performed a retrospective study to compare the effectiveness of this procedure to ureteroscopy for the treatment of ureteral calculi. Impacted ureteral stones were removed in 93 patients by percutaneous endoscopic ureterolithotomy (Group 1). In 142 patients, ureteroscopy was performed for the treatment of the ureteral stones (Group 2). The same instruments were used to carry out percutaneous endoscopic ureterolithotomy as were used for percutaneous nephrolithotomy. During these interventions, a direct percutaneous puncture and extraction of the stones was performed. The average diameter of the stones was 11 +/- 4 mm in Group 1 and 7 +/- 2 mm in Group 2. The average operating time was 32 +/- 11 minutes in Group 1 and 41 +/- 29 minutes in Group 2. The average duration of hospitalization following the operations was 7.2 +/- 3.1 days in Group 1 and 3.5 +/- 2.5 days in Group 2. In Group 1, the average time of the operations was significantly lower (p 0.006), and the duration of postoperative hospital stay was significantly higher (p < 0.001), compared to Group 2. In Group 1, retroperitoneal hematoma occurred in 1 patient and prolonged urine leakage was detected in 2 cases, whereas in Group 2, pyelonephritis occurred in 5 patients following the operation. In conclusion, the operating time of percutaneous endoscopic ureterolithotomy is shorter and the rate of complications comparable with that of ureteroscopy. Percutaneous endoscopic ureterolithotomy is suggested for the removal of impacted ureteral stones instead of open surgical ureterolithotomy.