Pediatric case of presacral ganglioneuroma: diagnostic considerations and therapeutic strategy

Background

Ganglioneuroma (GN) is an uncommon tumor belonging to the neuroblastic tumors group and is often localized in the posterior mediastinum, retroperitoneum, and adrenal gland. Presacral (PS) location is extremely rare. Its management remains a challenge.

Case presentation

A 4-year-old child presented to our department for an isolated abdominal mass. Para-clinical exams concluded to PSGN. Subtotal surgical excision was performed through an anterior transperitoneal approach. The size of the residual tumor did not progress after the 6-year follow-up period and the patients were asymptomatic.

Conclusions

GN should be considered in the case of soft tissue presacral masses in pediatrics. Subtotal resection seems sufficient in case of an extension to the sacrum with low morbidity. The residual tumors are still stable and the prognosis seems conserved. Further, long-term follow-up in large studies is needed to confirm these findings.

Familial lupus in Tunisia: a series of 14 families

The relatively high prevalence of systemic lupus erythematosus (SLE) in familial cases supports genetic susceptibility to this disease. Although many advances have been made in the identification of new genes implicated in lupus pathogenesis, to date, there has been no large study of familial SLE. We report what we believe to be the first study of familial SLE in the North African population. The objectives of this study were to determine the main clinical and laboratory features of familial lupus and to compare them to sporadic lupus in a population of Tunisian patients. Fourteen families in which the diagnosis of lupus could be verified in at least two relatives were included in the study. All patients fulfilled four or more criteria defined by the American College of Rheumatology. Twenty-seven patients (23 females and 4 males) with familial SLE among a cohort of 253 SLE patients were found, resulting in a frequency of 10.67%. No significant differences were found between familial SLE cases and their controls in terms of sex ratio, mean age at onset and clinical and serological manifestations, which is consistent with the results of other series reported in the literature. Our results support the importance of carrying out more genetic studies within families of SLE in order to have a better understanding of the genetic and molecular mechanisms of the disease.

[Inherited kidney stones: A nephrology center experience]

INTRODUCTION

Genetic factors must be considered in etiological diagnosis of urinary lithiasis. The aim of this study was to determine clinical, metabolic characteristics and the progression of hereditary urinary lithiasis in our patients.

METHODS

A retrospective study was conducted between 2008 and 2018 and 60 patients were included. Patients were referred to our department from pediatrics departments to be followed-up in adulthood in 9 cases, for etiological investigation in 42 cases and for chronic renal failure in 9 cases.

RESULTS

Thirty-five men and twenty-five women were enrolled in this study with a M/F sex ratio equal to 1.4. The mean age at the time of diagnosis of the hereditary character of the urinary lithiasis was 28.6years (3months-63years). The average delay between the onset of the lithiasis disease and the etiological diagnosis was 8years (0-42years). We noted 31 cases of cystinuria, 18 cases of primary hyperoxaluria type 1 with two mutations (I244T in 14 cases, 33-34 Insc in 23 cases) and 11 cases of renal tubulopathy. Fourteen patients were affected with chronic renal failure, of which five were in the end-stage renal disease. Crystalluria was positive in 62% of cases. The morpho-constitutional analysis of stones was performed in 37 cases and it contributed to the diagnosis in 29 cases. After an average follow-up of 16years, we noted normal renal function in 42 cases, chronic renal failure in 7 cases, hemodialysis in 10 cases all with primary hyperoxaluria and transplantation in 1 case.

CONCLUSION

The etiological diagnosis of hereditary urinary lithiasis in our study was made with considerable delay. Cystinuria was the most frequent etiology and primary hyperoxaluria was the most serious affection.

LEVEL OF EVIDENCE

4.

Laparoendoscopic Single-Site (LESS) Surgery in Pediatric Urology: A 4-Year Experience

Objective

The aim of the study was to assess the feasibility and outcomes of pediatric urological laparoendoscopic single-site (LESS) surgery.

Materials and Methods

We retrospectively collected charts of all patients who underwent LESS procedures in our department from January 2013 to December 2016. Data included demographic characteristics, type of procedures, intraoperative details, hospital stay, and complications. The umbilicus was used as the surgical site in all cases. All procedures were performed with a homemade glove port and standard straight 3- or 5-mm laparoscopic instruments.

Results

Seventy-three patients (55 males, 18 females) were identifed. Procedures included 46 orchidop-exies, 21 pyeloplasties, 8 varicocelectomies, 3 nephrecto-mies, 3 nephroureterectomies, 3 orchiectomies, and 1 renal hydatid cyst treatment. Median operative time for the entire cohort was 47 min (range 26-156 min). There was no signifcant intraoperative blood loss. No conversion to conventional laparoscopy or open surgery was needed. All patients required paracetamol postoperatively. The mean follow-up was 18 months. Two patients had testicular atrophy after a Fowler-Stephens procedure and 1 patient had testicular reascension. Cosmetic results were excellent. Forty-five (62.5%) patients were discharged on the day of surgery.

Conclusion

Our study demonstrated that LESS surgery using our glove port technique and conventional laparoscopic instruments is a feasible and safe technique for the surgical management of various pediatric urological conditions.

Single-port laparoscopic ovarian transposition in an 11-year-old girl

Ovarian transposition was the first procedure proposed for children with cancer to preserve ovarian function from damage caused by abdominal and pelvic radiotherapy. In this paper, we describe the first paediatric case of single-port laparoscopic ovarian transposition.

Ovarian masses in pediatric patients: a multicenter study of 98 surgical cases in Tunisia

Ovarian masses requiring surgical intervention are uncommon in the pediatric population. Our aim is to report results of a multicentric Tunisian study concerning the clinical practice and the management of pediatric ovarian masses and to identify the factors that are associated with ovarian preservation. Between January 2000 and December 2015, 98 pediatric patients (<14 years) were surgically treated for ovarian masses at the five pediatric surgery departments in Tunisia. Ninety-eight patients were included in this study. The mean age of the patients at time of surgery was 8.46 ± 4.87 years. Sixty-three ovarian masses (64.3%) were non-neoplastic lesions, 24 (24.5%) were benign tumors, and 11 (11.2%) were malignant neoplasms. Conservative surgery (ovarian-preserving surgery) was successfully performed in 72.4% of the benign lesions, whereas only three patients (27.3%) with malignant tumors underwent ovary-sparing tumor resection (p < .001). The mean diameter of the tumors in the patients who underwent oophorectomy was significantly larger than that in the patients who underwent conservative surgery (7.8 ± 3.9 cm vs. 5.7 ± 2.9 cm, respectively, p = .001). In our study, the risk factors for oophorectomy were a malignant pathology and large tumor size. In accordance with the Gynecologic Cancer Intergroup consensus, we recommend that surgical management of ovarian masses in children should be based on ovarian-preserving surgery.

Enterobius vermicularis: A Cause of Abdominal Pain Mimicking Acute Appendicitis in Children. A Retrospective Cohort Study

BACKGROUND

Enterobius vermicularis (EV) is the most common helminthic infection in the world. This small parasite is predominant in the pediatric population. The presence of EV in the appendix can cause or mimick appendicitis. The aim of our study was to compare patients with EV infection and those without EV infection, and to identify predictive factors that may help the diagnosis of EV infection in patients presenting with right iliac fossa pain and avoid negative appendectomy.

METHODS

A retrospective analysis of all the appendices removed between January 2012 and December 2016 was conducted at the department of pediatric surgery, Hedi Chaker Hospital, Sfax, Tunisia. According to the final histopathological diagnosis, patients with EV infection were compared to those without EV infection. Data including age, sex, white blood cell (WBC) count, neutrophil count, eosinophil count, C-reactive protein, and ultrasound results for both groups were analyzed and compared. The study protocol was approved by the local hospital ethics committee. Statistical analysis was performed using IBM SPSS, version 20. Descriptive analysis in the form of mean and standard deviation was performed on demographic information. Differences between groups were assessed using the student t-test for continuous variables and the χ2 test and Fisher exact test where appropriate for categorical variables.

RESULTS

In total, 540 pediatric appendectomies were performed. Overall, 63.5% of patients were male and 36.5% were female. Mean age was 9.28 ± 2.77 years. 22.2% of procedures were completed laparoscopically, 76.5% were open and 1.3% were converted. The negative appendectomy rate was 11.1%. EV was present in 9.8% of cases. Comparison of clinical, biological, and ultrasound findings between two groups of patients with EV (EV+) and those without EV (EV-) shows a statistical significance for pruritus ani (P < 0.001), WBC count (P < 0.001), neutrophil count (P < 0.001), C-reactive protein (CRP) (P = 0.001), positive ultrasound (P < 0.001), perforation rate (P = 0.009), and negative appendectomy rate (P < 0.001). No significant difference between the two groups was seen when comparing gender (P = 0.271), vomiting (P = 0.130), eosinophil count (P = 0.915), and procedure (P = 0.536).

CONCLUSION

EV was seen in 9.8% of pediatric appendectomies in our study. Pruritus ani, normal WBC count, normal neutrophil count, and normal CRP level at presentation could predict EV infection in children who present with right iliac fossa pain.

Bilateral Testicular Torsion in a Neonate

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Laparo-Endoscopic Single-Site (LESS) Cutaneous Ureterostomy in a Neonate

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Hydroxychloroquine-induced hyperpigmentation in systemic diseases: prevalence, clinical features and risk factors: a cross-sectional study of 41 cases

Introduction Hydroxychloroquine is an antimalarial agent widely prescribed in internal medicine, rheumatology and dermatology. Its use can be complicated by various side effects including skin pigmentation. Objectives The aim of the study is to review epidemiological, clinical features and risk factors of hydroxychloroquine-induced pigmentation. Materials and methods We performed a cross-sectional study conducted over a period of 5 months. During this period, patients who had been treated with hydroxychloroquine for over 6 months, in the internal medicine department, underwent a complete dermatological examination. All patients completed a structured questionnaire to collect demographic data, dosage and treatment duration of hydroxychloroquine, other drug intake, hydroxychloroquine indication, and presence of pigmentary changes on the skin, nail, hair, and mucosa. Results A total of 41 patients (38 women and 3 men) were included in the study. The mean age was 39.2 ± 15.4 years. The hydroxychloroquine was indicated for systemic lupus erythematosus in 73.2%, dermatomyositis in 12.2%, rheumatoid arthritis in 9.8%, actinic lichen and sarcoidosis each in 2.4%. Cutaneous pigmented lesions were found in 21 cases (51%), mucous pigmentation in 5 cases (12%) and nail pigmentation in 1 case (2.5%). In 12 of 41 (29%) of the hydroxychloroquine users, we conclude a hydroxychloroquine-induced pigmentation. There were 11 women and one man with a mean age of 43 years and all of them were systemic lupus erythematosus patients. Pigmented lesions were located on the lower limbs in seven cases, the face in two cases, lips in two cases and the gum in two cases. Pigmentation appeared after a median duration of hydroxychloroquine treatment of 32 months with a median cumulative dose of 361 g. Overall, two patients reported that the appearance of pigmented lesions was preceded by the occurrence of ecchymotic areas following microtrauma. Significant association was found between hydroxychloroquine-induced pigmentation and treatment with oral anticoagulants and/or antiplatelet agents ( p = 0.03). Conclusion Our systematic examination of patients demonstrated that hydroxychloroquine-induced pigmentation is not rare. The imputability of hydroxychloroquine in the genesis of this discoloration is difficult to establish. Our study supports the hypothesis that ecchymosis, platelet antiaggregants and oral anticoagulants may be the main predisposing factors to hydroxychloroquine-induced pigmentation.

Hybrid laparoendoscopic single-site (LESS) pyeloplasty: Initial experience in children

BACKGROUND AND OBJECTIVE

Mini-invasive surgery is still evolving to get better surgical conditions for patients with ureteropelvic junction obstruction. We used technical modifications (hybrid pyeloplasty) that simplify surgical steps of laparoendoscopic single-site pyeloplasty in children. Our aim was to compare hybrid pyeloplasty to laparoendoscopic single-site pyeloplasty and to open pyeloplasty.

PATIENTS AND METHODS

We retrospectively reviewed records of patients with ureteropelvic junction obstruction aged<14years undergoing pyeloplasty at our institute from January 2011 to December 2015. Demographic data, laterality, operative time, length of hospital stay, drainage tubes, and postoperative complications were recorded. Surgical outcomes were evaluated based on renal sonography and Lasix diuretic renography.

RESULTS

Among 38 patients, 17 underwent open pyeloplasty (group I), 10 had laparoendoscopic single-site pyeloplasty (group II) and 11 had hybrid pyeloplasty (group III). The mean age at the time of operation was 55 months. The operative time in group III was significantly shorter than that in group I and group II (P<0.001). The shortest median hospital stay was noted in the group III. The mean follow-up period was 26 months (range: 6-52 months).

CONCLUSION

The hybrid pyeloplasty using LESS combine the successful outcomes of open surgery and advantages of minimally invasive surgery. It offers small incision surgery, good working space, short operation time, secure anastomosis and good cosmetic results.

LEVEL OF EVIDENCE

5.