共查询到20条相似文献,搜索用时 0 毫秒
1.
M. Uggowitzer C. Kugler M. Aschauer K. Hausegger H.-J. Mischinger M. Klimpfinger 《Abdominal imaging》1996,21(3):240-242
Enteroenteric intussusceptions in adults are rare events caused by tumors in most cases. A case of duodenojejunal intussusception
is presented which became manifest because of marked biliary obstruction and extensive pancreatic atrophy. As lead point,
a large duodenal polypous hamartoma could be identified. The role of ultrasound and CT as diagnostic imaging of choice in
this entity are discussed.
Received: 1/16/95Accepted: 2/14/95 相似文献
2.
R. H. Wachsberg C. D. Levine K. C. Cho M. Z. Simmons M. Y. Khan B. Koneru 《Abdominal imaging》1996,21(3):219-221
On magnetic resonance imaging (MRI) studies, wedge-shaped areas of signal abnormality noted in association with liver lesions
have been attributed to secondary phenomena and are said to be substantially larger than the actual tumor. We describe the
MRI and pathological appearance of a wedge-shaped cholangiocarcinoma. In cases where therapy might be affected, biopsy of
wedge-shaped MRI abnormalities associated with hepatic malignancy should be considered for accurate tumor staging.
Received: 23 December 1994/Accepted: 25 January 1995 相似文献
3.
Mucin-hypersecreting papillary cholangiocarcinoma presenting as abdominal wall abscess: CT and spiral CT cholangiography 总被引:1,自引:0,他引:1
We describe CT findings of a case of mucin-hypersecreting papillary cholangiocarcinoma (MHPC), with extrahepatic bile leakage
to the rectus abdominis muscle via the ligamentum teres hepatis forming an abdominal wall abscess. Endoscopic retrograde cholangiography
was unsatisfactory. Spiral three-dimensional CT cholangiography was helpful in assessing the resectability of MHPC by offering
anatomic details of the uninvolved biliary tree.
Received: 20 February 1995/Accepted: 4 April 1995 相似文献
4.
Enhancement of ascitic fluid on delayed contrast-enhanced CT has been described as a potential pitfall in diagnosis. We present
a case in which the phenomenon was beneficial to diagnosis. Enhancement of ascites was useful in delineating the entire extent
of a cystic pelvic mass. We also discuss probable molecular and histologic mechanisms responsible for this unique type of
enhancement.
Received: 8 August 1994/Accepted after revision: 17 November 1994 相似文献
5.
In pancreatitis, the fluid collection may extend to unusual sites and organs and form a pseudocyst. We present US and CT
findings of a pancreatic tail pseudocyst extending into the subcapsular space of the left kidney.
Received: 23 December 1994/Accepted: 25 January 1995 相似文献
6.
A. T. Koren E. M. Lautin R. Kutcher A. Rozenblit T. D. Banerjee 《Abdominal imaging》1996,21(3):272-274
A case report of complete testicular feminization is presented. The medical and radiological characteristics of this condition
which distinguish it from male cryptorchidism and other disorders of sexual differentiation are discussed. To our knowledge,
only three previous case reports have been published in the radiology literature. Our report is the first to describe MRI
findings.
Received: 2 March 1995/Accepted after revision: 28 March 1995 相似文献
7.
B. I. Choi Y. M. Shin J. K. Han J. W. Chung J. H. Park M. C. Han 《Abdominal imaging》1996,21(1):33-36
Background: The objective of this study was to determine if spiral computed tomography (CT) results in increased rate of detection of
focal hepatic nodules containing iodized oil after transcatheter oily chemoembolization when compared with conventional CT.
Methods: Spiral CT with single 24-s breath-hold technique was compared with conventional sequential CT in 42 patients with suspected
hepatocellular carcinomas. Two sets of CT scans obtained after transcatheter oily chemoembolization were independently reviewed
by two radiologists. The slice thickness was 10 mm for both data sets. The number and sizes of focal hepatic nodules containing
iodized oil were documented. All 42 patients had at least one hepatic nodule. The lesion size varied from 2 mm to 12 cm.
Results: In six of the 42 patients, more hepatic nodules could be identified on spiral CT compared with conventional CT. When scans
with spiral CT were used, 107 nodules were detected, whereas 98 nodules were detected with conventional CT. Overall, nine
(9%) more nodules were detected with spiral CT (<+>p= .002). If lesions larger than 2 cm are excluded, nine (15%) more lesions were detected with spiral CT (<+>p= .002).
Conclusion: Spiral CT results in increased rate of detection of focal hepatic nodules after transcatheter oily chemoembolization, particularly
in lesions smaller than 2 cm.
Received: 11 October 1994/Accepted: 6 November 1994 相似文献
8.
A complex mass confined to the gallbladder found on CT is unusual, but nor rare, with causes including benign inflammatory
disease, early primary carcinoma and metastases. Non-Hodgkin's lymphoma is rare and Hodgkin's disease, prior to the current
case, unheard of involving just the gallbladder. Thus, this should be considered part of the differential diagnosis of a complex
gallbladder mass.
Received: 9 February 1995/Accepted: 4 March 1995 相似文献
9.
M. Okada T. Shirotani T. Sakurai T. Yao M. Seo Y. Okada K. Sakamoto K. Tanaka 《Abdominal imaging》1996,21(2):133-141
Background: To clarify the radiographic characteristics of intractable gastric ulcers with H2-receptor antagonists.
Methods: The radiographic findings at the time of starting treatment were compared between 42 patients with gastric ulcers that did
not heal within eight weeks of starting treatment with H2-receptor antagonists (the intractable group) and 58 patients whose ulcers healed within the eight-week period (the tractable
group).
Results: The following radiographic findings in the intractable group were observed at a significantly higher incidence than those
in the tractable group and included: an ulcer located on the angle, linear ulcers, a greater depth, an uneven mound surrounding
an ulcer, prominent folds' convergence, an overhanging gastric mucosa, an irregular ulcer base, a shortening of the lesser
curvature and a U-shaped deformity of the angle. A multiple logistic regression analysis showed that the following three factors
had a significant and independent delaying effect on healing: a U-shaped deformity of the angle, an uneven mound surrounding
an ulcer and prominent folds' convergence. The relative risk of these factors were 12.7, 14.4 and 12.5, respectively.
Conclusions: Intractable gastric ulcer with H2-receptor antagonists can be predicted based on the characteristic radiographic findings at the start of treatment.
Received: 23 December 1994/Accepted: 25 January 1995 相似文献
10.
Demonstration of peritoneopleural communication in patients with cirrhotic ascites has an important impact on treatment planning.
We studied 12 such patients and found presence of peritoneopleural communication in five. Two had bilateral, one right-side
and two left-side, pleural effusion. Pleural fluid protein content was less than 2 g/dL in all patients.
Received: 30 January 1995/Accepted: 4 March 1995 相似文献
11.
H. Honda T. Hayashi K. Yoshida K. Takenaka K. Kaneko T. Fukuya Y. Tateshi T. Ro T. Maeda K. Masuda 《Abdominal imaging》1996,21(1):37-40
Background: Because of its poor prognosis, the diagnosis of hepatocellular carcinoma with sarcomatous change (HCCSC) is clinically important.
The purpose of this study is to elucidate the characteristic CT findings of HCCSC.
Methods: Two-phased dynamic incremental CT images of six histologically proven HCCSC were retrospectively reviewed.
Results: All tumors (100%) exhibited peripheral enhancement on delayed CT images. Lymphadenopathy was observed in 100% (six of six
patients); intrahepatic metastases, in 83% (five of six). Both metastatic lesions showed findings similar to those of the
primary hepatic tumors, such as peripheral enhancement. Histopathologically, delayed and/or prolonged peripherally enhanced
areas consisted of viable cancer cells with sarcomatous changes.
Conclusions: The appearance of HCCSC on CT is that of an irregularly demarcated intrahepatic mass with delayed or prolonged peripheral
enhancement, frequently with intrahepatic metastases and lymphadenopathy.
Received: 5 December 1994/Accepted: 4 January 1995 相似文献
12.
T. Fukuda I. Sakamoto S. Kohzaki M. Uetani M. Mori T. Fujimoto K. Hayashi S. Matsuo 《Abdominal imaging》1996,21(1):58-61
We reviewed the clinical and radiological features in eight patients with spontaneous rectus sheath hematoma (RSH). The diagnosis
was confirmed at surgery in four patients, and spontaneous resolution occurred in the other four. All patients were elderly
adults. Acute abdominal pain and a palpable mass after muscular strain, such as coughing or twisting, were features highly
suggestive of RSH. Sonographically, these hematomas may be confused with abdominal wall tumors. On CT scans, a hyperdense
mass posterior to the rectus abdominis muscle with ipsilateral anterolateral muscular enlargement is considered characteristic
of acute RSH, although chronic RSH may be isodense or hypodense relative to the surrounding muscle. MRI is very useful in
the diagnosis of RSH, which is demonstrated as a high signal intensity area on both T1- and T2-weighted images, especially
when the CT findings are not specific for RSH.
Received: 16 August 1994/Accepted: 3 October 1994 相似文献
13.
We report on three patients with large lipomas in the wall of the cecum, causing intussusception. Endoscopy is the preferred
modality for small lipomas, whereas CT and MR imaging are more useful in their ability in detecting fatty masses and assessing
the location of lesions. Barium enema study may contribute to the preoperative planning in selected cases.
Received: 1 November 1994/Accepted after revision: 5 January 1995 相似文献
14.
Rectus sheath hematoma: diagnostic classification by CT 总被引:3,自引:0,他引:3
A method of classification for hematomas of the rectus abdominis sheath (RSH) is proposed based on findings observed in CT
in the 13 cases of RSH in the present study. Type I hematomas (five cases) are slight and do not require hospitalization.
Type II (three cases) and type III (five cases) are moderate and severe hematomas, respectively, and do require hospitalization.
The patients with type III hematomas were all undergoing anticoagulant therapy and presented with a picture of acute abdomen,
and in all five cases blood transfusion was carried out. Ultrasonography and, in particular, CT permitted a correct diagnosis
of RSH. RSH should be considered (anticoagulant therapy induced) in females with sudden abdominal pain to avoid unnecessary
surgical intervention.
Received: 1 May 1995/Accepted: 12 June 1995 相似文献
15.
Occult bilateral ectopic vaginal ureters causing urinary incontinence: diagnosis by computed tomography 总被引:1,自引:0,他引:1
Diagnosis of an ectopic, infrasphincteric ureter can be difficult because the renal moiety drained by the ectopic ureter
is often small and functions poorly. We present a 6-year-old girl with urinary incontinence caused by bilateral vaginal ectopic
ureters that were not seen on excretory urography or renal sonography and were diagnosed only by contrast-enhanced computerized
tomography.
Received: 22 August 1994/Accepted after revision: 22 December 1994 相似文献
16.
Arteriocholedochal fistula: an unusual cause of hemobilia 总被引:1,自引:0,他引:1
We report an unusual cause of hemobilia in a patient with a transhepatic biliary catheter. Hemobilia was due to an extrahepatic
fistula between the gastroduodenal artery and the common bile duct and was responsible for significant blood loss. The fistula
was successfully treated with transarterial embolization that resulted in no further episodes of hemobilia during the following
12 months.
Received: 22 August 1994/Accepted: 23 September 1994 相似文献
17.
A patient with gastrointestinal bleeding due to amyloidosis-related factor X deficiency had extensive calcified retroperitoneal
amyloid deposition that was visible on plain radiographs and then localized by computed tomography. The radiologic findings
were important in arriving at the proper diagnosis despite negative biopsies.
Received: 14 December 1994/Accepted: 15 January 1995 相似文献
18.
W. L. Asbury Jr. P. A. Hatcher H. R. Gould W. A. Reeves D. D. Wilson 《Abdominal imaging》1996,21(3):275-277
A case of a 19-year-old male with a paraganglioma (pheochromocytoma) arising in the prostate and involving the urinary bladder
is presented. The radiological studies, including computed tomography, demonstrated ringlike calcification of the tumor, a
rare finding that is highly suggestive of the diagnosis of pheochromocytoma. The tumor was excised and found to be malignant
at surgery.
Received: 17 April 1995/Accepted: 23 May 1995 相似文献
19.
Two cases of symptomatic, surgically proven left paraduodenal hernias were shown with computed tomography (CT) imaging. A
small bowel loop was seen behind the pancreatic tail in one case, and a ring-oriented bowel loop was shown between the transverse
colon and the left adrenal gland in the other.
Received: 11 January 1995/Accepted: 4 February 1995 相似文献
20.
A case of renal granular cell carcinoma with inferior vena cava and right atrium involvement is presented. Spin-echo and
single breath-hold gradient-recalled-echo magnetic resonance pulse sequences demonstrate a patchy flow signal within the cavoatrial
thrombus. This pattern, in correlation with the histopathologic findings, represents tumoral neovascularity characteristic
of renal carcinoma venous invasion, which was previously reported by angiography, computed tomography, and color Doppler duplex
ultrasound.
Received: 27 April 1995/Accepted: 24 May 1995 相似文献