1/13. Inflammatory fibroid polyp of the esophagus.The case of a 76-year-old woman with a submucosal tumor of the esophagus, whose principal symptoms were dysphagia and epigastric/retrosternal pain, is reported here. endoscopy, barium swallow and a CAT scan all pointed to extramucosal localization. The lesion was located in the lower esophagus lying on the stomach fundus. An ulcer in the region of the cardia complicated the tumor. Two sets of conventional biopsies failed to detect malignancy, only inflammation and intestinal metaplasia were seen in the specimens of the mucosa surrounding the ulcer. The endoscopic ultrasonographic findings were an indistinct margin, hypoechogenicity, homogeneous appearance and location within the second and third echographic layer. The surgical resection of the tumor was complemented by an anterior partial fundoplication. The histologic study revealed an inflammatory fibroid polyp, which is a rare, benign, non-capsulated submucosal lesion composed mainly of loose connective tissue and vessels, with an eosinophilic inflammatory component. This lesion is seldom found in the esophagus.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/13. pneumocystis carinii infection in bilateral aural polyps in a human immunodeficiency virus-positive patient.pneumocystis carinii is an opportunistic infection found in patients with impaired immunity. Under favourable conditions the parasite can spread via the blood stream or lymphatic vessels and cause extrapulmonary dissemination. We report a case of P carinii infection presenting as bilateral aural polyps, otitis media and mastoiditis in human immunodeficiency (hiv)-positive patient with no history of prior or concomitant P carinii infection.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
3/13. Clinicopathological correlation of polypoidal choroidal vasculopathy revealed by ultrastructural study.AIMS: To describe the clinical and histopathological findings in a patient with polypoidal choroidal vasculopathy. methods: A 76 year old Japanese man had a discrete, orange-red lesion of 1 disc diameter in the macula, with the fluorescein and indocyanine green angiographic and optical coherence tomographic findings compatible with polypoidal choroidal vasculopathy. He underwent a surgical removal of the macular lesion, followed by light and electron microscopic examinations. RESULTS: The histopathological examination revealed that the specimen consisted of degenerated retinal pigment epithelium-Bruch's membrane-choriocapillaris complex and inner choroid. A tortuous, unusually dilated venule was present adjacent to an arteriole with marked sclerotic changes, appearing to form arteriovenous crossing. These vessels seemed to represent native inner choroidal vessels, and had haemorrhage per diapedesis. blood cells and fibrin filled the lumina of the vessels and accumulated in the extravascular spaces, indicating vascular stasis. CONCLUSION: Hyperpermeability and haemorrhage due to stasis of a dilated venule and an arteriole involved by sclerosis at the site where they cross in the inner choroid might cause oedema and degeneration of the tissue. Voluminous accumulation of blood cells and fibrin might generate elevation of tissue pressure sufficient to displace the weakened lesion anteriorly. The result suggests that the polypoidal vessels in this case represent abnormality in the inner choroidal vasculature.- - - - - - - - - - ranking = 4keywords = vessel (Clic here for more details about this article) |
4/13. A large fibrous polyp of the gallbladder mimicking a polypoid carcinoma.Fibrous polyp of the gallbladder is a rare variant of benign gallbladder polyp. Differentiation between a benign polyp and polypoid carcinoma of the gallbladder is often difficult when the polyp is more than 1 cm in diameter. We report a rare case of a large fibrous polyp of the gallbladder mimicking a carcinoma. A 44-year-old Korean woman who presented with abdominal pain was diagnosed with a large gallbladder polyp, measuring 1.26 cm in diameter, by abdominal ultrasonography. The lesion was echogenic with a nodular surface on ultrasonography, and showed contrast enhancement on computed tomography. Neither evidence of infiltration into the gallbladder wall nor lymph node enlargement was shown. The resected gallbladder showed a 1.2 x 0.8-cm-sized polyp with a nodular surface. Histologically, it showed a leaf-like configuration and loose or cellular connective stroma containing scattered duct-like structures, varying-sized vessels, and patchy infiltration of chronic inflammatory cells. stromal cells were immunoreactive for vimentin and smooth-muscle actin and negative for S-100 protein and desmin. Large fibrous polyps of the gallbladder should be considered in the differential diagnosis of benign and malignant polypoid lesions of the gallbladder.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
5/13. Endometrial polyps in postmenopausal patients receiving tamoxifen.The histologic features of an endometrial polyp include irregular, often dilated glands, thick-walled blood vessels, and a fibrotic stroma. Such polyps may be responsive to some chemotherapeutic drugs that can exert hormonal effects. We report on endometrial polyps detected in three postmenopausal patients who were receiving tamoxifen for treatment of metastatic breast carcinoma. The clinical presentation in all cases was vaginal bleeding and all had documented uterine enlargement suggestive of an intrauterine malignancy. The polyps were large, measuring up to 9 cm in largest diameter. On histologic examination each polyp had extensive cystic glandular hyperplasia. In one case foci of atypical epithelial proliferation and predecidualization were noted. The atypical proliferation suggested a borderline neoplastic process and was strongly positive for carcinoembryonic antigen. These findings underscore the marked proliferative changes that can be induced in endometrial polyps in postmenopausal women receiving hormonally active chemotherapeutic agents.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
6/13. "Placental polyp": light microscopic and immunohistochemical observations.A case of the chronic type of placental polyp, occurring in a 37-year-old woman approximately 9 years after abortion of her last known pregnancy, is reported. The placental polyp was predominantly composed of necrotic and hyalinized chorionic villi without identifiable lining trophoblast; however, some villi showed a thin rim of apparently viable syncytiotrophoblast that exhibited focal strong positivity for human chorionic gonadotropin by immunohistochemical studies. Intermediate trophoblast, especially abundant within the intervillous fibrin, appeared most viable and showed strong positivity for human placental lactogen (hPL); syncytiotrophoblast also showed focal positivity for hPL. The basal aspect of the polyp was composed of abundant decidua that contained dilated and ectatic blood vessels. This study demonstrates the presence of cytoplasmic markers for pregnancy in a chronic type of placental polyp, apparently of 9 years' duration, and draws attention to an entity that may be encountered more frequently due to the current prevalence of induced abortions.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
7/13. Pulmonary and extrapulmonary lymphangioleiomyomatosis. Report of a case with bilateral renal angiomyolipomas, multifocal lymphangioleiomyomatosis, and a glial polyp of the endocervix.The authors report an extraordinary case of a 33-year-old female who had pulmonary and extrapulmonary lymphangioleiomyomatosis, bilateral renal angiomyolipomas, multifocal lymphangioleiomyomatosis involving the uterus, ovaries, periadrenal vessels, and liver. The patient also had a glial polyp of the endocervix which represented retained fetal parts from an abortion 15 years earlier. Both ovaries showed multiple follicle cysts which may have been a source of endogenous estrogen. The classical stigmata of the tuberous sclerosis complex were absent. The multifocal lymphangioleiomyomatosis of the various organs described presents an extremely rare manifestation of this disorder.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
8/13. Giant fibrovascular polyp of the esophagus.Fibrovascular polyp (FVP) of the esophagus is a benign intraluminal tumor that consists primarily of loose connective tissue with numerous vessels and can attain vast dimensions. Symptoms are commonly dysphagia, vomiting, and weight loss. Small polyps can be removed endoscopically, but larger masses should be excised surgically because of the potential for hemorrhage. This case report illustrates the characteristic features of this unusual disease.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
9/13. Inflammatory bronchial polyps associated with asthma.We report a case of inflammatory bronchial polyps associated with asthma in a 10-year-old boy. He expelled about 50 polyps varying in size from 0.4 to 1.8 cm without difficulty. Microscopically, the polyps were lined by columnar epithelium supported by stroma consisting of a loose connective tissue with many capillary vessels and a chronic inflammatory infiltration composed mainly of lymphocytes, plasma cells, and eosinophils. The blood and urine laboratory data were normal except for blood eosinophilia of 3% to 10%, and a chest roentgenogram that showed a left perihilar small nodular lesion and a small irregular area in the right upper lobe. Test results of pulmonary function and blood gases were normal. The association of bronchial inflammatory polyps with asthma and the clinical manifestation in this patient is very uncommon.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
10/13. Unusual pattern of gastric and hepatic infiltration in an infant with acute monocytic leukemia.A 10-month-old girl with acute monocytic leukemia is presented. Ultrasound of the abdomen on admission showed an unusual distribution of leukemia infiltrates in the stomach and liver. The leukemic infiltrates in the wall of the stomach presented as intraluminal polyps, while the leukemic infiltration of the liver was strictly confined to the portal vessels.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
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