Omental well-differentiated liposarcoma: US, CT and MR findings

Liposarcomas are the most common of sarcoma tumours, they are usually located in the lower limbs, retroperitoneum, or abdominal cavity; up to date, only a few cases of omental liposarcoma with different histotype have been described. We present a case of omental well-differentiated liposarcoma and discuss imaging findings on ultrasound, computed tomography, and magnetic resonance to differentiate omental liposarcomas from other abdominal tumour entities

Current and emerging imaging techniques to evaluate bowel dysfunctions in patients with Multiple Sclerosis: a review

Multiple Sclerosis (MS) is the most common chronic disease of central nervous system (CNS). MS patients may present with a wide variety of neurologic symptoms, including fatigue, sensory and motor disturbances, depression, cognitive disorders, bladder, bowel and sexual dysfunctions (1). Pelvic floor disorders are often overlooked symptoms in patients with MS (2). With respect to the general population, constipation and/or faecal incontinence are more frequent in MS, with an estimated prevalence ranging from 52% to 68% (3). The neuro-pathophysiological mechanism of bowel dysfunction in MS remains unclear. Several factors act in concert to maintain fecal continence; among the anatomical factors the anal sphincter is crucial, interplaying with rectum and pelvic floor muscles to controll defecation. In recent decades, technological advances in diagnostic imaging have dramatically improved our knowledge favouring the assessment of anatomical and functional deficits in patients with bowel dysfunctions. We conducted a review to provide an overview on the relevance of current and emerging imaging techniques to study morphologic and functional abnormalities of anorectal region and pelvic floor of MS patients. Multimodal imaging techniques are frequently used: both static and dynamic imaging provide new insights into the complexity of global pelvic floor dysfunctions. The defecography seems to be the gold standard examination for the identification of morphological and functional disorders of the recto-anal region and pelvic floor (4). Although MRI defecography provide more accuracy in morphologic and functional assessment and allows to avoid radiation exposure, defecography is a cost-effective procedure, simple to perform, and widely available in every hospital equipped with a fluoroscopy room

Computed tomography-guided cryoablation of local recurrence after primary resection of pancreatic adenocarcinoma

The optimal management of local recurrences after primary resection of pancreatic cancer still remains to be clarified. A 58-yearold woman developed an isolated recurrence of pancreatic cancer six year after distal pancreatectomy. Re-resection was attempted but the lesion was deemed unresectable at surgery. Then chemotherapy was administrated without obtaining a reduction of the tumor size nor an improvement of the patient’s symptoms. Thus the patient underwent percutaneous cryoablation under computed tomography (CT)-guidance obtaining tumor necrosis and a significant improvement in the quality of life. A CT scan one month later showed a stable lesion with no contrast enhancement. While the use of percutaneous cryoblation has widened its applications in patients with unresectable pancreatic cancer, it has never been described for the treatment of local pancreatic cancer recurrence after primary resection. Percutaneous cryoablation deserves further studies in the multimodality treatment of local recurrence after primary pancreatic surgery

Mammography and ultrasound imaging of preinvasive and invasive canine spontaneous mammary cancer and their similarities to human breast cancer

Understanding the evolution of proliferative breast disease such as atypical hyperplasia and carcinoma in situ is essential for clinical management of women diagnosed with these lesions. Therefore, an animal model that faithfully represents human breast disease in every aspect from spontaneity of dysplasia onset, histopathologic features, and genetics to clinical outcome is needed. Previously, we studied canine spontaneous atypical hyperplasia and ductal carcinoma in situ (low, intermediate, and high grade) and reported their similarities to human lesions in histopathologic and molecular features as well as prevalence. To further validate the resemblance of these lesions to humans, we examined their mammographic and sonographic characteristics in comparison with those of human’s as well as the potential of the human Breast Imaging Reporting and Data System (BI-RADS) to predict canine disease. Nonlesional, benign, and malignant mammary glands of dogs presented to Sassari Veterinary Hospital were imaged using mammography and ultrasonography. The images where then analyzed and statistically correlated with histopathologic findings and to their similarities to humans. Our results showed that canine mammary preinvasive lesions, benign, and malignant tumors have mammographic abnormalities, including the presence, pattern, and distribution of macrocalcification and microcalcification, similar to their human counterparts. BI-RADS categorization is an accurate predictor of mammary malignancy in canine, with 90% sensitivity and 82.8% specificity. The similarities of mammographic images and the ability of BI-RADS to predict canine mammary malignances with high specificity and sensitivity further confirm and strengthen the value of dog as a model to study human breast premalignancies for the development of prognostic biomarkers

Clinical evaluation of sodium hyaluronate in the treatment of patients with sopraspinatus tendinosis under echographic guide: experimental study of periarticular injections

Purpose. The purpose of this study was to examine the effect of periarticular injection of hyaluronate into shoulders with supraspinatus tendinosis under echographic guide. Methods and materials. The subjects were 56 patients with clinical, echographic and magnetic resonance diagnosis of supraspinatus tendinosis. They were divided in two groups by random sampling; 28 patients were assigned in SH group (sodium hyaluronate) and 28 patients in SC group (sodium chloride). The test drug was 20 mg sodium hyaluronate (2 ml, Hyalgan®, Fidia SpA, Abano T., P.M. 500–700.000, 20 mg/2 ml). Results. Preliminary results showed that sodium hyaluronate presented the highest efficacy in the improvement of clinical symptoms and recovery of functional status in patients with supraspinatus tendinosis in fact the mean V.A.S. score (Visual Analogue Scale) at 1 month after the end of the infiltrative cycle was 8.0 in the SC group vs. 2.8 in SH group and these numerical data were substantially unchanged also after 3 and 4 months. Conclusion. Hyaluronate injection under echographic guide should be use not only as a lubricant but also to prevent articular cartilage degeneration and cover and protect the articular cartilage; indeed sodium hyaluronate can decrease inflammatory joint process.<br/

Breast cryoablation in patients with bone metastatic breast cancer

PURPOSE: To assess retrospectively the safety and feasibility of palliative breast cryoablation to treat primary breast tumors in patients with stage IV breast cancer. MATERIALS AND METHODS: In 17 female patients (mean age ± SD, 59 y ± 13; range, 37-81 y) with 22 bone metastatic ductal invasive breast lesions (2.5 cm × 1.6 cm ± 1.4 × 1.1; range, 1.0 cm × 0.5 cm to 6.7 cm × 5.5 cm), 19 computed tomography (CT)-guided percutaneous cryoablation sessions were performed for treatment of primary breast tumors. All patients had radiologic evidence (contrast-enhanced CT or magnetic resonance imaging) of persistence or progression of the primary breast cancer despite systemic therapy. The radiologic outcome was evaluated with a mean follow-up period of 13 months (range, 3-31 mo). Treatment of skeletal metastases was unnecessary during the follow-up period. RESULTS: All of the cryoablation sessions were completed and well tolerated. Complete regression of the disease was achieved in 15 (88%) patients 2 months after the cryoablation. Two (12%) patients underwent a second cryoablation treatment because of a minimal persistence of viable tumor (residual disease). No relapse of primary tumors was observed on breast imaging during the follow-up period. One patient (6%) developed a new lesion localized to the contralateral breast. CONCLUSIONS: These data suggest that palliative cryoablation of primary advanced breast cancer is a well-tolerated, feasible, and effective treatment option. Given the palliative effects of breast cryoablation demonstrated in this series, larger studies replicating these results are warranted.</br

Cauda equina syndrome secondary to idiopathic spinal epidural lipomatosis

Study Design. Three cases of idiopathic epidural lipomatosis are reported. Objectives. Description of the relationship between spinal pathologic overgrowth of fat tissue and neurologic symptoms. Summary of Background Data. Idiopathic epidural lipomatosis is a very rare condition; it is usually secondary to chronic steroid therapy or endocrinopathic diseases. Methods. Three men with a mean age of 58.5 years, who experienced intermittent claudication, bilateral radicular pain in both legs, and urinary dysfunction with hypoesthesia in the perineal region, were evaluated by plain radiography and magnetic resonance imaging, the results of which demonstrated a pathologic overgrowth of fat tissue in the spinal canal with a marked impingement of the dural sac. Obesity, endocrinopathic diseases, and chronic steroid therapy were excluded for all patients. Surgical treatment was performed by wide multilevel laminectomies, fat debulking, and instrumented posterolateral fusion. Results. After surgery there was a gradual improvement in symptoms and signs so that 2 years later the patients returned to daily activities and were neurologically normal. Conclusions. Spinal epidural lipomatosis can be a cause of back pain but rarely radicular impingement. Magnetic resonance imaging is the procedure of choice. The treatment must be performed early by wide surgical decompression

I Carcinomi in situ della mammella: inquadramento clinico ed attualità

INTRODUCTION: Lobular and ductal carcinomas in situ of the breast (LCIS and DCIS) origin from the ductal-lobular unit of mammary gland, but they are characterized for different morphologic patterns and evolution. In 1980 they represent 1.4% of diagnosis in breast biopsy, less of 5% of carcinomas of the breast. Actually in 7.5% of breast biopsy an in situ carcinoma is recognized (approximating 40% of breast cancers). Our purpose is to evaluate the different available strategies in the clinic management of DCIS and LCIS and, in case of surgical treatment, which reconstructive approach obtains satisfactory breast conformation.MATERIALS AND METHODS: The study enclose 125 patients: 40 of them presented LCIS (32%) and 85 DCIS (68%). In 40 patients (32%) underposed to mastectomy was performed a reconstruction in cooperation with aesthetic surgeons. 35 of 40 women with LCIS are included in a follow-up programme, 5 of them had a bilateral mastectomy and reconstruction. RESULTS: No recurrences were observed in patients affected by LCIS. Six patients underposed to wide excision for DCIS developed local recurrence, treated by mastectomy. No recurrences were observed in patients treated initially with mastectomy. Some complications correlated to reconstruction were detected. CONCLUSIONS: One of most controversial sights in breast pathology is the understanding of biological meaning of CLIS: in facts CDIS can be considered a pre-invasive cancer, CLIS is reasonably considerable only a risk indicator for developing breast cancer but it isn’t a pre-neoplastic lesion. Very important is the reconstruction of the breast to improve the quality life of patients

Computed tomography-guided cryoablation of pelvic metastasis from uterine leiomyosarcoma

Owing to its ability to place and use multiple cryoprobes simultaneously, cryoablation enables the treatment of tumors of any shape. Cryoablation causes ice crystals to form within cells, inducing membrane rupture and cell death via cellular dehydration and local tissue ischemia. Ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI) enable clear visualization of the margins of low-density and solid ice. A case of breast cancer with axillary lymph-node metastasis treated with CT-guided cryoablation has been reported previously