1/6. Intravascular occlusive therapy: use of interventional radiology in cancer patients.Selective transcatheter intravascular occlusion in the treatment of cancer patients is a valuable extension of interventional diagnostic radiology. Intra-arterial embolization may be performed with various substances, including autologous clot, autologous subcutaneous tissue, Gelfoam, and stainless steel coil. Clinical applications in cancer patients include control of gastrointestinal and genitourinary hemorrhage, preoperative reduction of tumor vascularity, control of local symptoms, and therapeutic reduction of tumor bulk. The technique has been used for preoperative and palliative treatment of neoplasms of the head and neck, kidney, liver, spleen, and soft tissue and bone. Transcatheter intravascular occlusion should be performed only by radiologists experienced in angiographic techniques. Inadvertent occlusion of a normal vessel and thromboembolism are possible complications.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/6. Ectopic (pelvic) kidney mimicking bulky lymph nodes at pelvic lymphadenectomy.BACKGROUND: Ectopic (pelvic) kidney is the most common congenital renal anomaly with an incidence of 1 in 500 to 1 in 2000. A pelvic kidney can be encountered at pelvic or paraaortic lymphadenectomy. case reports: In two patients undergoing pelvic lymphadenectomy, lobulated tumors near the pelvic brim were initially interpreted as bulky lymph node conglomerates. Further dissection showed the ureter to originate from the masses, leading to a diagnosis of pelvic kidney. CONCLUSION: Pelvic kidneys mistaken for bulky lymph nodes are a potential intraoperative pitfall in patients with gynecologic malignancies. Keys to recognition include an index of suspicion, identifying the course of the ureter and origin of the renal vessels, and confirming absence of a kidney at the normal location.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
3/6. Giant perianal angiomyofibroblastoma--a case report.A 45-year old female had a long history of slow growing perianal tumor at the right side of her anus. Encapsulated tumour was found intraoperatively and completely excised using the Harmonic Scalpel. Tumour was well-circumscribed and relatively firm; measuring 12x6x4 cm. Histologically it was composed of oval to spindle cells with minimal nuclear atypia, set in mucous matrix with numerous thin-walled blood vessels. Immunohistochemically, expression of smooth-muscle actin and desmin, as well as estrogen and progesterone receptor were found in the tumour cells. The diagnosis of angiomyofibroblastoma was established. This rare benign tumour typically involves vulvovaginal, pelvic and perinal region. It is important to separate this neoplasm from locally invasive aggressive angiomyxoma and low grade fibromyxoid sarcoma, which can arise in the the same localisation. The patient was discharged on the third postoperative day and no recurrence was noted in 18 months follow-up.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
4/6. Aggressive angiomyxoma of the female pelvis and perineum. Report of nine cases of a distinctive type of gynecologic soft-tissue neoplasm.Nine case of a distinctive soft tissue tumor of the female pelvis and perineum are described. They were characterized by their occurrence in young women (ages 21-38), large size (up to 60 X 20 cm), locally infiltrative nature, and grossly gelatinous appearance. The initial clinical impression was usually that of a Bartholin gland cyst. The microscopic appearance was that of spindle or stellate cells widely separated by a loose myxoid stroma focally rich in collagen fibrils, a prominent vascular component, including many large thick-walled vessels without an arborizing pattern, and foci of proliferating glandular elements in two cases. Mitotic activity was exceedingly low. Ultrastructural study of the spindle cells showed features consistent with myofibroblastic differentiation. Four patients developed large local recurrences; one tumor recurred twice, 14 and 15 years after initial excision. No distant metastases have been documented to date, and all patients are alive and well. The differential diagnosis of this unusual tumor includes myxoma, myxoid liposarcoma, sarcoma botryoides, myxoid variant of malignant fibrous histiocytoma, nerve sheath myxoma, and other soft tissue tumors with secondary myxoid changes. We have chosen the term "aggressive angiomyxoma" for this neoplasm to emphasize the neoplastic nature of the blood vessels and its locally infiltrative and recurrent nature.- - - - - - - - - - ranking = 2keywords = vessel (Clic here for more details about this article) |
5/6. Aggressive angiomyxoma in males. A report of four cases.Aggressive angiomyxoma (AAM) is a rare, locally infiltrative but nonmetastasizing tumor of the pelvic and perineal soft tissues that occurs almost exclusively in adult females. The authors describe four cases of AAM in adult males that arose in the scrotum. There was some histologic variation among the tumors. One case was focally hypercellular around the blood vessels, two were more densely cellular throughout, and one had cystic degeneration. Three of the tumors were widely infiltrative, and one of the four tumors recurred locally. The clinicopathologic features of these cases are similar to those of AAM occurring in females. In either sex, AAM should be distinguished from benign myxoid tumors with a low risk of local recurrence and fully malignant myxoid tumors with distant metastatic potential.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
6/6. Pseudo-Meigs' syndrome caused by paraovarian fibroma.Meigs' syndrome includes an ovarian tumor, usually fibroma, associated with hydrothorax and ascites. It is accepted that uterine tumors, like fibromas, can also be associated with ascites and hydrothorax, but this is extremely rare. The mechanism of formation of peritoneal and pleural effusion is not well documented. The most likely pathogenesis ascribes the fluid formation to the filtration of interstitial fluid in the peritoneal through the tumor capsule, and the diffusion to the pleural space through the diaphragm lymphatic vessels at the foramen of Bochdalek. Paraovarian fibromas are also extremely rare neoplasms, probably of paramesonephric origin. It has been hypothesised that they can develop by proliferation of connective tissue cells around the Wolfian remnants. In this article, probably for the first time, a case of paraovarian fibroma with ascites and hydrothorax is presented.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |