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ABSTRACT: To describe the imaging features of pancreatic metastases from renal cell carcinoma.
Retrospective study of 17 patients with isolated metachronous pancreatic metastases from renal cell carcinoma with surgical and pathological correlation.
The preoperative diagnosis was made on ultrasound in 13 cases. Contrast-enhanced CT showed intense tumor enhancement at the arterial phase, mostly homogeneous but sometimes heterogeneous. There were multiple lesions in six cases. Following complete surgical resection, survival was fairly good.
Long-term follow-up with CT obtained in the arterial and portal venous phases is mandatory. The arterial phase acquisition is essential for the diagnosis of pancreatic metastases from renal cell carcinoma.
Journal de Radiologie 12/2011; 92(12):1091-100. · 0.42 Impact Factor
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ABSTRACT: We wanted to study the role of dynamic pelvic MRI (D-MRI) in the surgical management of patients with genito-urinary prolapse.
A routine D-MRI examination before and after laparoscopic double promontofixation was performed in 15 cases with symptomatic vaginal prolapse in need of surgical treatment. The review included also three self-administered questionnaires of symptoms and quality of life. We compared the preoperative clinical evaluation of the studied cases with D-MRI data. Changes after the surgical treatment were also studied.
The D-MRI provides an accurate diagnostic evaluation of the pelvis, which is both objective and reproducible. The correlation between clinical scores and radiological magnetic resonance was 53.3% only. In cases with absence of previous pelvic surgery, there was a radio-clinical discrepancy of 40% of cases, while in cases with history of a previous pelvic surgery we found a discrepancy of 60% of cases. This was due to clinical difficulty in differentiating between peritoneocele and rectocele, or due to under-diagnosis of complex prolapse. The sensitivity of MRI in the diagnosis of cystocele, hysterocele and rectocele were respectively 100, 100 and 83%. The gain in sensitivity provided by the MRI was significant for the diagnosis of peritoneocele: 100% against 33%. The specificity was 100%. Static images allowed a detailed study of damaged connective tissues and pelvic muscles.
The D-MRI seems an appropriate tool in pre-operative assessment of cases with vaginal prolapse. It will help in focusing our surgical strategy, especially in cases that present post-hysterectomy and in cases with residual or recurrent prolapse.
Progrès en Urologie 02/2011; 21(2):93-101. · 0.58 Impact Factor
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Journal de Radiologie 04/2009; 90(3 Pt 1):324-6. · 0.42 Impact Factor
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Journal de Radiologie 03/2009; 90(3P1):324-326. · 0.42 Impact Factor
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ABSTRACT: To evaluate the role of contrast enhanced US in the characterization of renal tumors. Materials and methods. Eighty-six renal tumors (33 solid, 53 cystic) underwent contrast enhanced US after indeterminate CT/MRI (67 lesions) or US (19 lesions). Pathological correlation was available for 42 cases, and follow-up at 3 and 6 months was available for 13 cases. Diagnosis was achieved in 21 cases. Lesions included: 19 renal cell carcinomas (4 conventional, 14 papillary, 1 tubulocystic), 5 oncocytomas, 3 metastases, 6 pseudomasses, and 53 cystic lesions including 6 malignant tumors.
Solid tumors were correctly identified in 100% of cases. Characterization of solid tumors was possible with specificity of 92.9% for papillary carcinoma, 57.1% for clear cell carcinoma, and 100% for oncocytoma. The specificity for distinguishing solid benign from solid malignant tumor was 100% based on the presence of hypoechogenicity relative to normal renal parenchyma on delayed imaging. Contrast enhanced US allowed reclassification of 23 indeterminate lesions on conventional US. It is of limited value for large cystic lesions or cystic lesions with extensive wall calcification.
Contrast enhanced US is easily performed in clinical practice and allows improved characterization of some renal tumors compared to other cross sectional imaging techniques.
Journal de Radiologie 12/2008; 89(11 Pt 1):1735-44. · 0.42 Impact Factor
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Journal de Radiologie 12/2007; 88(11 Pt 1):1733-5. · 0.42 Impact Factor
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ABSTRACT: We report an exceptional case of periureteral and presacral localizations of extramedullary hematopoiesis. To our knowledge, the association of presacral or periureteral masses has not been described before. Diagnosis was suggested by the association of computed tomography (CT) imaging findings and knowledge of the clinical context. Guided CT biopsy is a safe and efficient means to obtain final diagnosis of atypical extramedullary hematopoiesis localizations.
Acta Radiologica 04/2007; 48(2):246-8. · 1.37 Impact Factor
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ABSTRACT: This pictural essay presents the different imaging patterns of the main renal tumor processes described in the latest pathological classification. Most of them make it possible to suggest certain histological types in order to modify the surgical approach.
Journal de Radiologie 10/2006; 87(9):1025-54. · 0.42 Impact Factor
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ABSTRACT: Multiple treatments are proposed to cure prostate carcinoma. Radical prostatectomy is the classical option for localized tumor. However radiotherapy can be proposed in such circumstances with the argument of a less invasive procedure with similar results. High Intensity Focalised Ultrasound (HIFU) is a new technique available for similar staging of the carcinoma with good results. Follow up is based on biological evaluation of PSA. Imaging studies are required only in cases of abnormal level. Endorectal Ultrasonography with biopsies is useful after radical surgery. Indications for MRI study is mainly to differentiate a localized from a general recurrence.
Journal de Radiologie 03/2006; 87(2 Pt 2):244-56. · 0.42 Impact Factor
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ABSTRACT: Pathological processes of the scrotum are very numerous. They are composed by few common well known diseases and a large spectrum of rare lesions. The testis may be involved by some systemic diseases. Ultrasound is the main modality for scrotal imaging and complementary to clinical evaluation. When a tumoral process is suspected, surgery is required to confirm the diagnosis and provide histology. The role of MR remains under evaluation.
Journal de Radiologie 07/2003; 84(6):667-80. · 0.42 Impact Factor
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ABSTRACT: Pathological processes of the scrotum are very numerous. They are composed by few common well known diseases and a large spectrum of rare lesions. The testis may be involved by some systemic diseases. Ultrasound is the main modality for scrotal imaging and complementary to clinical evaluation. When a tumoral process is suspected, surgery is required to confirm the diagnosis and provide histology. The role of MR remains under evaluation.
Journal de Radiologie 06/2003; 84(5):581-95. · 0.42 Impact Factor
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ABSTRACT: Urinary obstruction has three different clinical aspects: acute, chronic and intermittent. Imaging modalities and diagnostic strategies are different for each of them. Although the morphologic analysis is accurate for all imaging modalities, the diagnosis of hydronephrosis may not be so easy, except for major typical form. There are some pitfalls, for instance the presence of parapelvic cysts at ultrasound and difficulties for initial or minor forms. Nowadays, IVU is still in routine the best examination to assess renal function. In the near future, MRI should be able to give useful information for both morphologic and functional status and take an important role in the evaluation of urinary obstruction.
Journal de Radiologie 03/2003; 84(2 Pt 1):109-19. · 0.42 Impact Factor
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ABSTRACT: Emphysematous pyelitis (EP) is a benign entity. To our knowledge, it has not been reported frequently in the radiology literature. Previous articles have not focused on EP but rather have included other gas-forming entities (eg, emphysematous pyelonephritis [EPN]). The authors describe imaging findings in EP and distinguish them from findings in EPN in five cases. Computed tomography is the current method for demonstrating isolated gas production inside the urinary collecting system. The prognosis is excellent, with rapid complete recovery after medical treatment.
Radiology 04/2001; 218(3):647-50. · 5.73 Impact Factor
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ABSTRACT: Post-traumatic rupture of UPJ obstruction is a rare event, with few reported cases in the literature. Diagnosis is suggested on imaging studies, especially US and CT findings. The presence of an anterior pelvic hematoma associated with thinning of kidney parenchyma, very distended pelvis and non dilated ureter is suggestive of pre-existing pathology.
Journal de Radiologie 03/2001; 82(2):171-3. · 0.42 Impact Factor
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ABSTRACT: New MRI modalities today available allow exploration of many kidney diseases. Main developments have been made in the diagnosis of small tumors and tumoral extension of huge masses. The other important way of application is MR urography which perfectly show the dilated urinary tract in few seconds. Their potential application are for renal insufficiency, allergic reaction to iodine contrast media and in cases of contra indication to ionised radiations. It is a complementary sequence to assess the urinary tract in pelvic exploration. The evaluation of kidney function will be possible in the near future.
Journal de Radiologie 10/2000; 81(9 Suppl):1085-95. · 0.42 Impact Factor
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ABSTRACT: Vesical disorders are numerous. For tumoral processes, the role of imaging modalities is limited to the loco-regional extension. In certain rare cases of benign tumors, precise diagnosis can be evocated. Nowadays, urinary insufficiency is explored by dynamic MRI. It provides a complete assessment of the whole muscular and visceral compartments of the pelvic cavity.
Journal de Radiologie 10/2000; 81(9 Suppl):1099-111. · 0.42 Impact Factor
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ABSTRACT: Helical CT is the most useful imaging modality to evaluate kidney diseases. Different imaging protocols are used to assess the correct diagnosis in each clinical situation. The nephrographic phase (between 90 and 100 s of delay after injection) is more accurate than the cortical phase (between 30 and 40 s of delay) to depict and characterise small renal masses. Multiplanar and 3D reconstruction are useful to plan partial kidney surgery or percutaneous surgery of lithiasis. In emergency, spiral CT, if available, is suitable to assess renal colic. Spiral CT is the best modality to evaluate traumatic kidney.
Journal de Radiologie 10/2000; 81(9 Suppl):1071-81. · 0.42 Impact Factor
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Journal de Radiologie 10/2000; 81(9 Suppl):1096-7. · 0.42 Impact Factor
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Journal de Radiologie 10/2000; 81(9 Suppl):1112-3. · 0.42 Impact Factor
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BJU International 08/2000; 86 Suppl 1:42-7. · 2.84 Impact Factor
