鸡的几种肾肿病的鉴别诊断

鸡肾肿病是常见多发病,有肾肿症状的共性,也有个性。诊断较难,容易误诊。我多年来在临床实践中,对鸡肾肿病从病原特性、流行特点、临床症状和病理变化等方面,总结了诊断要点。为便于在临床上鉴别,现分述如下。1 肾型传染性支气管炎 该病是由病毒引起的急性高度接触性传染病,一年四季均可发生,但以15—30日龄的鸡多发。它表现轻微甩鼻、呼噜、渴欲增加,饮水量比正常增加1—2倍,拉白色水样稀粪,鸡腿干糙,死亡率10—20％。剖检病死鸡可见皮肤不易剥离,肌肉干燥,肾脏明显肿大,色淡,肾小管和输尿管充满尿酸盐,肾呈花斑状。腔上囊正常。2 传染性法氏囊病 本病是由传染性法氏囊病毒引起鸡的一种急性高度接触性传染病。一年四季均可发生。

家禽肾肿病(肾型传染性支气管炎)的防治

近年来在家禽中有新的传染病发生流行,给我区的养殖业带来了巨大的损失.现据我们临床遇到的肾肿病的诊断和治疗情况介绍如下:

Renal and perinephric abscesses in West China Hospital:10-year retrospective-descriptive study

AIM： To elucidate the clinical, radiological and laboratory pro？les of renal abscess （RA） and perinephric abscess （PNA）, along with related treatment and outcome.METHODS： Ninety-eight patients diagnosed with RA or PNA using the primary discharge diagnoses identi？ed from the International Statistical Classification of Diseases and Related Health Problems Tenth Edition （ICD-10） codes （RA： N15.101, PNA： N15.102） between September 2004 and December 2014 in West China Hospital were selected. Medical records including patients’ characteristics, symptoms and signs, high-risk factors, radiological features, causative microorganisms and antibiotic-resistance pro？les, treatment approaches, and clinical outcomes were collected and analyzed.RESULTS： The mean age of the patients was 46.49 years with a male to female ratio of 41：57. Lumbar pain （76.5%） and fever （53.1%） were the most common symptoms. Other symptoms and signs included chills （28.6%）, anorexia and vomiting （25.5%）, lethargy （10.2%）, abdominal pain （11.2%）, fank mass （12.2%）, fank ？stula （2.0%）, gross hematuria （7.1%）, frequency （14.3%）, dysuria （9.2%）, pyuria （5.1%） and weight loss （1.0%）. Painful percussion of the costovertebral angle （87.8%） was the most common physical ？nding. The main predisposing factors were lithiasis （48.0%）, diabetes mellitus （33.7%） followed by history of urological surgery （16.3%）, urinary tract infections （14.3%）, renal function impairment （13.3%）, liver cirrhosis （2.0%）, neurogenic bladder （1.0%）, renal cyst （1.0%）, hydronephrosis （1.0%）, chronic hepatitis B （1.0%）, post-discectomy （1.0%） and post-colectomy （1.0%）. Ultrasound （US） and computed tomography were the most valuable diagnostic tools and US was recommended as the initial diagnostic imaging choice.Escherichia coli （51.4%）, Staphylococcus aureus （10.0%） and Klebsiella pneumoniae （8.6%） were the main causative microorganisms. Intravenous antibiotic therapy was necessary while intervention including surgical and nonsurgical approaches were reserved for larger abscesses, multiple abscesses, PNAs and non-responders. CONCLUSION： Heightened alertness, prompt diagnosis, and especially proper antibiotics in conjunction with interventional approaches allow a promising clinical outcome of renal and perinephric abscesses.

Clear Cell Sarcoma of the Kidney-A Case Report

Clear cell sarcoma of the kidney （CCSK） is a rare and highly malignant tumor which is usually confused with other kidaey tumors We experienced such a patient and present report this.

Complex pattern of colon cancer recurrence including a kidney metastasis: A case report

We report a case of a 77-year-old female with a local recurrence of cancer after right hemicolectomy which infiltrated the pancreatic head affording pancreatoduodenectomy, who developed 3 years later recurrent tumor masses localized in the mesentery of the jejunum and in the lower pole of the left kidney. Partial nephrectomy and a segment resection of the small bowel were performed. Histological examination of both specimens revealed a necrotic metastasis of the primary carcinoma of the colon. Although intraluminal implantation of colon cancer cells in the renal pelvic mucosa from ureteric metastasis has been described, metastasis of a colorectal cancer in the kidney parenchyma is extremely rare and can be treated in an organ preserving manner. A complex pattern of colon cancer recurrence with unusual and rare sites of metastasis is reported.

Kidney function outcomes following thermal ablation of small renal masses

The diagnosis of small renal masses(SRMs) continues to increase likely attributable to widespread use of axial cross-sectional imaging. Many of these SRMs present in elderly patients with abnormal baseline renal function. Such patients are at risk for further decline following therapeutic intervention. Renal thermal ablation presents one approach for management of SRMs whereby tumors are treated in situ without need for global renal ischemia. These treatment characteristics contribute to favorable renal function outcomes following kidney tumor ablation particularly in patients with an anatomic or functional solitary renal unit.

Complications of extrahepatic echinococcosis:Fistulization of an adrenal hydatid cyst into the intestine

Echinococcal cysts are usually found in liver and lungs, but any other organ can potentially be involved. Extrahepatic disease due to hydatid cyst may develop in the abdominal and pelvic cavity, aside from in other less common locations, which may make both diagnosis and treatment more complex. We present a rare case of extrahepatic echinococcosis in a 70-year old patient with a 4-d history of dull abdominal pain, anemia within the transfusion range and fever. She underwent surgery for left renal hydatid cysts 30 years ago. After non operative treatment, imaging studies showed a calcified hydatid cyst in a retrogastric location communicating with a proximal jejunal loop. En-block resection of the mass together with the adrenal gland was performed including closure of the enteric fistula. Anatomic pathology confirmed the diagnosis of a calcified hydatid cyst of left adrenal origin. Surgery is the treatment of choice and most authors recommend removal of cyst and adrenal gland.

Diagnosis and Treatment of Primary Adult Renal Sarcoma

Objective To investigate the clinical characteristics of primary adult renal sarcoma.Methods A total of 1654 cases with adult renal tumors were treated during 1985 to 2009 in Peking Union Medical College Hospital.Of all,17 cases were diagnosed as primary renal sarcoma and underwent radical nephrectomy.The clinical features of 17 such patients were retrospectively analyzed.Results The first symptom of 10(59%) cases in all renal sarcomas was abdominal mass.The pathological diagnosis was leiomyosarcoma(7 cases),rhabdomyosarcoma(2 cases),malignant fibrous histiocytoma(2 cases),low-differentiated sarcoma(2 cases),chromophobe renal cell carcinoma coexisting with liposarcoma(1 case),fibrosarcoma(1 case),embryonic sarcoma(1 case) and leiomyosarcoma(1 case).One patient died of tumor thrombus of the inferior vena cava during surgery.Finally,15 cases were regularly followed up for 4 to 60 months.Till now,1 had tumor-free survival for 9 months,and the other 14 cases died 2-38 months after the operation with a median survival time of 18(range,5-60) months.The median survival time of leiomyosarcoma group was 28(range,11-60) months,and 2 cases of malignant fibrous histiocytoma died 4 and 8 months after the operation respectively.Conclusions The primary renal sarcoma has the clinical symptom similar with advanced renal cell carcinoma and has poor prognosis.Leiomyosarcoma might have relative good prognosis.

Synchronous bilateral multiple chromophobe cell renal carcinoma complicated with right kidney cyst: a case report

Synchronous bilateral multiple chromophobe cell renal carcinoma is rare; here we report a case diagnosed with bilateral renal multiple tumors complicated with a cyst in the right kidney. Retroperitoneal laparoscopic bilateral nephron sparing surgery was performed and there was no serious postoperative renal dysfunction. Pathological and immunohistochemical diagnoses of both tumors were chromophobe cell renal carcinoma. The patient has been doing well without any evidence of recurrence or metastasis for 6 months.

Evaluation of nephron sparing surgery for renal tumors:a single institution experience

Objective:The aim of the study was to report the experience of National Cancer Institute(NCI),Cairo University,Egypt,in managing various benign and malignant renal tumors with nephron sparing surgery(NSS),and to assess its safety and feasibility.Methods:Reviewing the literature for NSS,and records of patients who underwent NSS in the period from January 2000 to December 2009 at National Cancer Institute,Cairo University regarding the patient and tumor related characteristics,the indication for NSS,operative technique,postoperative complications,full histopathological data,and follow up results.Results:The total number of patients was 17.Mean age at surgery was 30.7 years(range 1.5-65 years).Five patients had bilateral tumors during surgery.The mean tumor size was 4.5 cm(range 1-9 cm).All patients had normal preoperative kidney functions.Seven patients had an absolute indication for NSS,6 patients had a relative indication,and 4 patients had an elective indication.All the 5 patients with bilateral tumors underwent bilateral simultaneous surgery.Cold ischemia was used in 8 patients,1 patient was exposed to warm ischemia,manual compression was used in 2 patients,and no vascular control was applied in 6 patients.Complications were encountered in 2 patients,one of them had urinary leakage which needed reoperation,and the other had subcutaneous hematoma which was treated conservatively.Histopathological analysis revealed Wilm's tumor(8 patients),angiomyolipoma(4 patients),renal cell carcinoma(4 patients),and hydatid cyst(1 patient).All patients had negative surgical margin.For patients with Wilm's tumor,the mean follow up was 21.4 months(range 0-94 months),2 patients had local recurrence,and 1 patient had distant metastasis.For patients with RCC,the mean follow up was 15.3 months(5-33 months),no patients had local recurrence or distant metastasis.All patients had normal kidney functions during postoperative and follow up periods.Conclusion:NSS is a feasible safe procedure that can be done with acceptable complications rate and it provides a good solution for patients with bilateral tumors,early localized renal cell carcinoma,and benign tumors.

Renal Collecting Duct Cancer： a Report of 2 Cases

Renal collecting duct cancer is a rare malignant tumor, which accounts for 1% to 2% of epithelial kidney tumors. Its pathologial appearance has been easily misdiagnosed as a mammilliform renal cell carcinoma or as other tumors. The malignancy of renal collecting duct cancer is high, with early metastasis and poor prognosis. The clinical data for 2 cases of the tumor are discussed in this report, including reports on the histopathology and the changes in immunohistochemistry.

Multicentricity and its associated factors in renal cell carcinoma

OBJECTIVE: To investigate the incidence and associated factors of multicentricity in renal cell carcinoma (RCC) in Chinese patients. METHODS: One hundred and two kidney samples from radical nephrectomy due to RCC were step sectioned at 3 mm intervals and examined. All tissue abnormalities were removed, stained and examined for multicentricity. Then, on each slice of the sample, both the parenchymal margin of 15 mm beyond the pseudocapsule and tissue around the renal sinus were continuously sectioned and examined for completeness of the pseudocapsule and vascular and lymph node invasion. The relationship between muliticentricity and other pathological parameters was evaluated. RESULTS: The incidence of multicentricity was 15.7% (16/102); it was significantly lower in primary tumors 4.0 cm (4.9%, 2/41 vs 23.0%, 14/61; chi(2) = 6.055, P = 0.014). The incidence was 9.8% (8/82) in tumors without vascular invasion and 40.0% (8/20) in those with it (P = 0.003, Fisher's exact test). The incidence of multicentricity was 1.9% (1/53) in tumors with a complete pseudocapsule and 30.6% (15/49) in those without it (chi(2) = 15.885, P = 0.000). The grade, stage, subtypes and lymph node invasion of the primary tumor were not significantly associated with multicentricity. Multiple logistic regression analysis showed that pseudocapsular incompleteness and vascular invasion were two significant predictors of RCC multicentricity (P = 0.005 and 0.023). CONCLUSIONS: The incidence of multicentricity of RCC in this group of patients was in accordance with published studies. Multifocality was significantly associated with tumor size, pseudocapsule completeness and vascular invasion. NSS should be limited to tumors less than 4.0 cm when the contralateral kidney is normal and careful long-term follow-up is necessary in tumors with positive vascular invasion and incomplete pseudocapsule.

Trauma-related xanthogranulomatous interstitial nephritis: a clinicopathological analysis

Objective: To investigate the pathogenesis, exact nature, histologic feature of xanthogranulomatous interstitial nephritis (XGIN) as well as its significance in clinical medicine. Methods: The medical histories concerned were collected with diagnostic images including CT scanning, ultrasonography, intravenous urography (IVU) and laboratory data being synthesized by comparison with what was discovered during operations and pathologic examinations. Results: All patients were ever struck on their loins or backs by blunt violence over 4-12 years. The diseases were clinically diagnosed as “renal cancer” before, during and after operations, and treated with radical nephrectomy. Located at cortical parts, the tumor focus had penetrated the renal capsules and invaded other organs. However, immunohistochemistry demonstrated that the lesions were xanthogranulomas, not tumors, in which there were stacks of foam cells and lymphocytes with vast extends of fibrotic tissues obliterating the cortical interstitial structures. Urinary tracts yielded no bacterium, obstruction or calculus. Conclusions: XGIN is likely to be one kind of immunologic mediated granuloma following blunt renal trauma. It is imperative to clarify pathogenesis and character of this lesion so as to find out any approach to diagnosis and cure of such an unusual nephropathy.