A Rare Cause of Recurrent Vaginal Hydrocele: Herniating Mesenteric Hydatid Cyst.

Echinococcosis is a multisystem disease and has propensity to involve any organ, an unusual anatomical site, and can mimic any disease process. The hydatid cyst of the mesenteries known to occur secondary to hepatic involvement but occasional cases of his primitive form has also been reported. We report here one such case of primitive mesenteric hydatid cyst herniated through inguinal canal in a 5-yr-old boy, admitted to our Pediatric Surgery Department of Children's Hospital in Tunis, Tunisia in 2015.

Unusual malignant neoplasms of ovary in children: two cases report.

Sex cord tumors with annular tubules are known to originate from the sex cord of embryonic gonads that synthesize Sertoli cells, Leydig cells, granulosa cells, and theca cells of the ovarian stroma, while ovarian small cell carcinoma of the hypercalcemic type is a type of neuroendocrine tumor. Both these tumors are uncommon, potentially malignant neoplasms in children. We report the case of a sex cord tumor with annular tubules in an 11-year-old girl and a case of small cell carcinoma of the hypercalcemic type in a 10-year-old girl. We also discuss the prognosis and management of these tumors.

Diaphragmatic eventration in children.

BACKGROUND: Diaphragmatic eventration (ED) is a rare anomaly defined by a permanent elevation of a hemidiaphragm without defects. Clinical manifestations are diverse, ranging from asymptomatic to life-threatening respiratory distress. The aim of this study is to report our experience of management of eight children with ED over the past 15 years. METHODS: A retrospective study was conducted involving 8 infants and children with ED managed at the department of pediatric surgery of Tunis Children's Hospital. RESULTS: Five patients (2 males, 3 females) whose ages ranged from 5 month to 7 years (mean, 13 months) were operated on using diaphragmatic plication (3 right-sided and 2 left-sided plications) for symptomatic ED with a dramatic improvement in their respiratory status. Another infant (a 3-month-old boy) was admitted for respiratory distress that required mechanical ventilatory support. He died before operation because of sepsis. Two other asymptomatic patients with incidentally diagnosed ED were followed up for 5 years on average. Chest x-ray suggested eventration in all cases. Ultrasound was found to be a useful modality for diagnosis in 6 cases. There were no cases of associated malformation. CONCLUSION: Diaphragmatic eventration in children is usually congenital but may be acquired. Chest ultrasound is an important imaging modality for diagnosis. Diaphragmatic plication appears to be safe and effective. Surgical intervention is not recommended in asymptomatic patients.

Xanthogranulomatous pyelonephritis in childhood: diagnosis difficulties and success of conservative treatment.

BACKGROUND: Xanthogranulomatous pyelonephritis is an uncommon form of chronic pyelonephritis rarely seen in children. Preoperative diagnosis is difficult and management is still obscure. AIM: The authors report on a focal pseudotumoral case and discuss therapeutic modalities. CASE: A 2-year-old boy was admitted for a 2-weeks history of fever and right flank pain. Physical examination revealed a right lumbar mass. White blood cell count was 12.800/mm3 and C reactive protein elevated (50 mg/l). The urine culture was negative. Ultrasonography and computerized tomography demonstrated a focal multilocular cystic mass of the lower polar of right kidney, measuring 80 millimeters, with peripheral enhancement and perirenal involvement. At surgical exploration, a huge abscess of the lower polar of the kidney with dense adhesions to adjacent structures were noted. Excision of the collection and local drainage were performed. Pathologic examination of biopsy specimen confirmed the diagnosis of xanthogranulomatous pyelonephritis. Intraoperative culture was positive for Escherichia coli. Successful treatment of the lesion was achieved with adjunctive antibiotic therapy. The postoperative course was uneventful over a follow-up period of 2 years. CONCLUSION: Xanthogranulomatous pyelonephritis should be considered in the differential diagnosis of a renal mass. A first-line conservative treatment must be strongly recommended in pediatric focal cases.

Presternal giant epidermal cyst: 2 cases.

BACKGROUND: Epidermal cysts are a common benign lesion, occurring often above the shoulder and within the face and the scalp. Presternal site and huge volume are quite rare, especially in children. AIM: The authors report on two paediatric cases, discuss etiopathogenesis and diagnostic difficulties. CASES: A 2, 5 and 3-year-old boys were admitted for voluminous subcutaneous tumour of the chest. The lesions had appeared since neonatal period with rapid growth after a minimal trauma for the last year. The physical examination found a great presternal cystic mass of 70 mm in diameter which is painless round and mobile. Ultrasonography and magnetic resonance imaging, showed a subcutaneous cystic mass with no mediastinal involvement or other localization in both. Complete surgical excision including the overlying skin with direct cutaneous closure was performed in both cases. The histological examinations confirmed the diagnosis of epidermal cyst. Postoperative courses were uneventful with no recurrence during respectively 18 months and 5 years follow-up periods. CONCLUSIONS: Giant presternal epidermal cyst is uncommon and can raise diagnostic problems. Imaging investigations facilitate accurate diagnosis. Because of malignant degeneration, surgical excision should be mandatory.

A stump appendicitis in a child: a case report.

BACKGROUND: Stump appendicitis is a delayed complication of appendectomy. It is rare and few cases reported in the paediatric literature. The authors report on another case in a child and focus on the diagnostic peculiarities of this entity. CASE: A 9-year-old boy with previous history of open appendectomy was admitted for a right lower quadrant pain with bilious vomiting and fever. Physical examination demonstrated tenderness in the right lower quadrant and guarding over the appendectomy scar. The white blood cell count was 23.500 cells/mm3. Plain abdominal radiograph and ultrasonography revealed fecalith localized in the right iliac fossa. The diagnosis of stump appendicitis was advocated and confirmed at laparotomy. A gangrenous and perforated appendiceal stump was found and completely removed. The post-operative course was uneventful after 18 months follow-up period. CONCLUSION: Stump appendicitis is rare and should be considered in any patient with right lower quadrant pain even if there is a history of appendectomy. Complete removal of the appendix is the only mean to prevent the occurrence of this complication.

[Acute cholangitis revealing a primary pancreatic hydatid cyst in a child]. / Une angiocholite aiguë révélant un kyste hydatique du pancréas chez l'enfant.

Pancreatic hydatid cysts represent 0.1 to 1% of all hydatidoses. A 12 year-old-boy, with a previous history of abdominal pain, was admitted for acute cholangitis. Laboratory investigations showed cholestasis, cytolysis and eosinophilia. Serum amylase levels were normal. Abdominal ultrasound and CT scan revealed a 100 mm hydatid cyst, located in the head of the pancreas. The biliary and pancreatic ducts were markedly dilated. Exploratory laparotomy confirmed the diagnosis. A pancreatic fistula was discovered. Subtotal excision of the cyst and external drainage of the pancreatic fistula were performed. Laboratory tests were normal post-operatively. The pancreatic fistulae persisted for two months. Hypercaloric and hyperprotidic feeding resulted in occlusion in three weeks. The rest of the postoperative course was uneventful and the size of the biliary and pancreatic ducts was normal. The authors discuss the diagnostic features of pancreatic hydatid cyst and discuss therapeutic modalities.

[Recurrent urinary lithiasis revealing hereditary xanthinuria]. / Lithiases urinaires récidivantes révélant une xanthinurie héréditaire.

INTRODUCTION: Hereditary xanthinuria, due to a purine metabolism disorder, is a rare cause of urinary lithiasis in children. CASE: We report the case of a child aged 3 and a half years, who presented recurrent urinary lithiasis that led to destruction of the right kidney. Infrared spectrophotometric analysis of the calculus concluded that it was composed of 100% xanthine. Laboratory tests showed hypouricemia and hypouricosuria with elevated urinary excretion of oxypurines. These findings led to a diagnosis of hereditary xanthinuria. CONCLUSION: Early diagnosis of this rare disease is essential to avoid its complications. Metabolic causes must be sought in children with lithiasis.

[Cystic dysplasia of the testis]. / La dysplasie kystique du testicule.

Cystic dysplasia of the testis is an exceptional benign tumour resulting from a functional abnormality of the connection between the rete testis and the efferent ductules of the epididymis. The authors report a new case observed in a child. The frequent association with a renal abnormality is highly suggestive. Treatment usually consists of orchidectomy, but can be conservative with long-term surveillance. The prognosis is usually excellent.

[Congenital mesoblastic nephroma with multiple cysts]. / Le néphrome mésoblastique congénital aux manifestations multikystiques.

Mesoblastic nephroma is a rare, benign congenital disease with a clinical presentation similar to that of Wilms tumour. It was described for the first time by BOLANDE in 1967. The authors report the case of a 6-month-old infant admitted for investigation of an abdominal mass. The radiological assessment (ultrasonography. CT) concluded on a right intrarenal retroperitoneal tumour occupying almost all of the abdominal cavity, predominantly cystic suggesting a diagnosis of non-metastatic Wilms tumour. Radical ureteronephrectomy was performed. The outcome was favourable with a follow-up of 2 years. Histological examination corrected the diagnosis to mesoblastic nephroma by showing a fibrous tumour composed of spindle cells resembling muscle cells, associated with intracystic haemorrhage. The authors emphasize the clinical and radiological features of this tumour, its treatment (exclusively surgical) and its good prognosis (98% survival).