Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 69-year-old male was admitted to the hospital with the chief complaint of left hydronephrosis and diagnosed. A year ago, he underwent sidmoidectomy to cure sigmoid colon cancer diagnosed as stage IV. Ultrasonography (US) and computed tomography (CT) detected the compression of the ureter at its middle left due to the enlargement of the left iliac lymph node and hydronephrosis and hydroureter at the proximal to the compressed part. Then, a ureteral tumor was suspected and urinary cytology was class V. Cystoscopy detected a papillary tumor projecting from the left ureteral orifice. Because the histopathological manifestation by transurethral resection of bladder tumor and that by the sidmoidectomy were consistent, it was considered that sigmoid colon cancer spread to the urinary bladder via the left ureter. There have been only 4 reported cases of adenocarcinoma that multiplied in the ureter, and this is the fifth case report.
 ...
PMID:[A case of sigmoid colon cancer that spread to the urinary bladder via the ureter]. 1628 21

Malakoplakia, characterized by histiocytes with Michaelis-Gutmann bodies, is a rare entity. It is particularly so in the gastrointestinal tract, where it has been described in association with colon cancer, with about 20 cases described worldwide. The significance of this condition lies in its potential effect upon the preoperative staging and treatment of associated colorectal cancer. Its presence may lead to preoperative clinical and radiological over staging and more extensive resection, as well as the use of neoadjuvant therapy or a decision to undertake palliative care. This condition is more common in males. We present the case of the oldest reported patient with this association. The patient was a 90-year-old female who was treated with a sigmoid resection for an obstructing sigmoid lesion. At operation, the left ureter was embedded within an inflammatory pericolic mass but was not grossly involved with tumor. The tumor was a Dukes' stage B adenocarcinoma and occurred in association with malakoplakia.
 ...
PMID:Malakoplakia occurring in association with colon carcinoma. 1677 60

We report a case of adenocarcinoma of the urinary bladder, mimicking simple ureterocele in a 55-year-old man, presenting irritative bladder symptoms. The literature review highlights the rarity of such tumor. Intravenous urography showed a dilated terminal portion of the left ureter resembling a cobra-head appearance. Cystoscopy revealed suspicious hyperemic lesion on the mucosa of the dilated terminal portion of the left ureter. Transurethral biopsy of the lesion was performed and pathological examination revealed a muscle-invasive adenocarcinoma. There were no metastatic lesions on computed tomography. The patient underwent radical cystectomy and urinary diversion.
 ...
PMID:Adenonocarcinoma of the urinary bladder mimicking simple ureterocele: a case report. 1717 19

A 71-year old male visited our hospital with a chief complaint of pollakisuria. The needle biopsies of the prostate were performed with PSA 8.0 ng/ml, and he was diagnosed as moderately differentiated adenocarcinoma. Imaging techniques revealed a right complete duplicated upper urinary system with an ectopic ureter draining to the prostatic urethra. He received radical prostatectomy with concomitant anastomosis of ureter to ureter. There is no evidence of hydronephrosis or tumor recurrence 11 months after operation. This is, to our knowledge, the second case report describing the association of radical prostatectomy and ectopic ureter.
 ...
PMID:[Radical prostatectomy for prostate carcinoma with ectopic ureter ; a case report]. 1741 70

We present the case of a 78-year-old male who presented to clinic for follow-up of a papillary transitional cell carcinoma of the urinary bladder. Notably, the patient also had a history of colorectal resection for an adenocarcinoma. The follow-up appointment revealed left hydronephrosis with evidence of a distal ureteric stricture. Cytology and biopsy from the ureter subsequently disclosed the presence of malignant cells that were originally thought to be of urothelial origin. Upon surgical resection the lesion was found to be an adenocarcinoma, morphologically consistent with a metastasis from the patient's primary colonic adenocarcinoma. This case illustrates a diagnostically challenging situation, with metastatic colonic carcinoma to the ureter occurring in a patient with two previously documented malignancies.
 ...
PMID:Ureteric obstruction: an unusual presentation of metastatic colon carcinoma. 1746 62

A 58-year-old man, who had undergone sigmoidectomy for sigmoid colon adenocarcinoma 3 years earlier, was referred to our clinic because of left ureteral tumor incidentally found by computed tomography (CT). Under the diagnosis of left ureteral carcinoma, retroperitoneoscopic left nephroureterectomy was performed. Pathological examination revealed adenocarcinoma of the left renal pelvis and ureter. Subtype of the adenocarcinoma was 'enteric type'. Five months later, urine cytology was positive and multiple non-papillary tumors were found on cystoscopy. By the transurethral resection of the tumors, bladder tumors appeared to be adenocarcinoma. Carefully considering the pathological findings and clinical course, we concluded that the tumor was not metastatic but primary adenocarcinoma followed by intravesical recurrence.
 ...
PMID:[Primary adenocarcinoma of renal pelvis and ureter suspected as metastatic tumor: a case report]. 1751 75

Primary adenocarcinoma of the seminal vesicles is a rare neoplasm. Congenital seminal vesicle cysts are commonly associated with unilateral renal agenesis or dysgenesis. To the best of our knowledge, mucinous adenocarcinoma of the seminal vesicle cyst that's associated with an ectopic ureter opening into the seminal vesicle and ipsilateral renal agenesis has not been described in the radiological literature. We report here on the radiological findings of a primary adenocarcinoma of a seminal vesicle cyst in this condition.
 ...
PMID:Primary mucinous adenocarcinoma of a seminal vesicle cyst associated with ectopic ureter and ipsilateral renal agenesis: a case report. 1755 97

Adenocarcinoma of the pancreas has a low 5-year survival rate of approximately 5%. Early diagnostics of pancreatic carcinoma during early tumor stages is made difficult by the lack of symptoms. In particular, individuals suffering from carcinomas located within the pancreatic tail are at high risk of a missed diagnosis. The early symptoms are usually nonspecific (e.g., nonspecific upper abdominal complaints, decrease in weight, loss of appetite, and impaired performance) and are characteristic only in carcinomas of the pancreatic head with painless icterus. If the patient complains of low back pain, a severe infiltration with no chance of a complete surgical resection is found in most cases. An adenocarcinoma of the pancreatic tail was diagnosed in this case report based on a large retroperitoneal extravasation missing further symptoms. The extravasation found represented a primary infiltration of the left ureter which was not diagnosed in primary computed tomography.
 ...
PMID:[Retroperitoneal extravasation as the primary symptom of a pancreatic carcinoma]. 1778 2

The patient was a 66-year-old man who presented with asymptomatic hematuria. Left hydronephrosis was observed on drip infusion pyelography (DIP), and retrograde pyelography (RP) was performed because the image of the ureter was poor. On RP, stenosis was observed in the left ureter at the L5 vertebral level. The same findings were obtained by antegrade pyelography in combination with nephrostomy. A white-colored tumor was observed at the site ofstenosis by flexible pyeloscopy, and biopsy was performed. Adenocarcinoma was identified by histopathological examination. Total left renal nephroureterectomy was performed after its diagnosis as primary adenocarcinoma of the ureter (T2, NO, MO). To our knowledge, this is the 12th case reported in Japan.
 ...
PMID:Primary adenocarcinoma of the ureter: report of a case. 1793 42

Malignant tumors of the ureter that display biphasic patterns are very rare; they include carcinosarcomas, sarcomatoid carcinomas and carcinomas with pseudosarcomatous stroma. Although the distinction between carcinosarcomas and sarcomatoid carcinomas has been extensively discussed in the past, the recent World Health Organization classification of urinary tract tumors (2004) does not distinguish the two lesions and use the term sarcomatoid carcinoma to represent these biphasic tumors. The epithelial components of previously reported ureteral biphasic tumors comprise transitional cell carcinoma, squamous cell carcinoma, carcinoma in situ, small cell carcinoma and adenocarcinoma. In this paper, we report the first case of sarcomatoid carcinoma of the ureter with a predominant basaloid squamous carcinoma component. A 63-year-old man who had developed asymptomatic gross hematuria was diagnosed with a right ureteral tumor and underwent a right nephroureterectomy. Macroscopic examination of the excised tumor revealed a polypoid mass. Histopathologic examination exposed a tumor with malignant epithelial and sarcomatous components. The malignant epithelial component was predominantly composed of basaloid squamous carcinoma, and the sarcomatous component was mostly composed of undifferentiated spindle cells. A small focus of a chondrosarcomatous component was present. There were also transitional zones between the two components. In addition, the spindle cells of the sarcomatous component were partially positive for cytokeratin 7. We believe that the findings of this case study will increase the morphological diversity used for diagnosing malignant tumors of the ureter.
 ...
PMID:Sarcomatoid carcinoma with a predominant basaloid squamous carcinoma component: the first report of an unusual biphasic tumor of the ureter. 1805 14


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>