Biomedical subjects
Publications and source records attributed to Fathi Meziane.
The authors report a case of giant retroperitoneal liposarcoma. The diagnosis was suspected after scanography and magnetic resonance imaging and confirmed by the histological analysis of the extracted piece after surgical treatment. Postoperative evolution was favourable after one year without recurrence or distant metastasis. The authors discuss the pathologic and therapeutic aspects and the prognosis of retroperitoneal liposarcoma.
OBJECTIVES: Renal cysts of the sinuses or parapelvic cysts constitute a rare form of renal cyst, usually associated with low back pain. Symptomatic forms may be treated by percutaneous aspiration, but the treatment of these cysts has changed considerably over recent years due to the proximity of the renal hilum. Percutaneous treatment is now contraindicated due to its high complication rate, and open surgery is an invasive technique. Laparoscopy appears to be the most appropriate and most effective solution. PATIENTS AND METHODS: The authors report five cases of parapelvic renal cysts all presenting with renal colic and diagnosed by ultrasound, and confirmed by CT in three cases. Treatment consisted of retroperitoneal laparoscopy using four trocars allowing cyst resection with no intraoperative complications or conversion. RESULTS: The mean operating time was 55 minutes (range: 40 to 70 minutes). The postoperative course was uneventful and all patients were discharged on postoperative D1 or D2. No recurrence was observed after a mean follow-up of 6 months (range: 3 to 15 months). CONCLUSION: Retroperitoneal laparoscopic treatment of parapelvic renal cysts is an effective approach, with a low morbidity and less postoperative pain, a short convalescence period and good cosmetic results.
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The inflammatory myofibroblastic tumour of the bladder is a rare benign affection that interests mainly young adults. Its etiopathogeny remains unknown, but its tumoral origin was evocated recently by Griffin (1999), incriminating a chromosomic abnormality involving the ALK gene. We will discuss the etiopathogenic, anatopathological and therapeutical aspects of this lesion for which the diagnosis is histological and the treatment remains conservative with a good prognosis.
Inflammatory pseudotumours of the kidney are rare and raise a problem of differential diagnosis with renal cancer. The authors discuss the diagnostic difficulties of this disease in the light of two patients, aged 32 years and 60 years, admitted for left low back pain (2 cases), large kidney (1 case) and haematuria (1 case). The combination of renal ultrasound and CT suggested a renal tumour or a renal cyst, and MRI suggested a necrotic tumour. Surgical exploration led to tumour excision in one case and surgical biopsy in the other case due to the unresectable appearance of the tumour. Histological examination revealed an inflammatory mass with no signs of malignancy in the two cases. A favourable course was observed in both cases with a normal kidney on subsequent CT. The preoperative diagnosis of pseudotumour remains difficult, despite progress in medical imaging and often requires surgical exploration. The diagnosis is based on a correlation of radiological and histological findings.