scholarly journals Metanephric Adenoma Associated with Unusual Urinary Candidiasis: A Challenging Morbidity from Postoperative Anastomotic Leak

2021 ◽  
pp. 1-3
Author(s):  
Mohamed A. Elkoushy ◽  
Sameer A Munshi ◽  
Mohnna S Subahi ◽  
Shafaq Mujtaba ◽  
Mohamed A. Elkoushy
Keyword(s):  
Postoperative Morbidity ◽  
Benign Neoplasm ◽  
Papillary Renal Cell Carcinoma ◽  
Good Prognosis ◽  
Imaging Studies ◽  
Metanephric Adenoma ◽  
Fungus Infection ◽  
Postoperative Anastomotic Leak ◽  
Clinical Problems ◽  
Current Report

Metanephric adenoma (MA) of the kidney is a rare benign neoplasm, which is mostly incidental-discovered during imaging studies for other clinical problems. However, this tumor may overlap in morphology with the papillary renal cell carcinoma and there are descriptions of metastatic disease. To date, fewer than 200 cases of MA have been reported worldwide and usually have a good prognosis. In the current report, a case of MA in a middle-aged lady is presented, which developed postoperative morbidity resulting from prolonged perinephric leakage secondary to urinary and perinephric fungus infection as a part of systemic candidiasis. The clinical, morphological and immunohistochemical features are presented together with a review of the current literature.

scholarly journals Radiation Therapy Improves Local Control in Juvenile Nasopharyngeal Angiofibroma following Disease Progression after Embolization and Surgical Resection: A Case Report

2021 ◽  
pp. 739-745
Author(s):  
Zane Blank ◽  
Richard Sleightholm ◽  
Beth Neilsen ◽  
Michael Baine ◽  
Chi Lin
Keyword(s):  
Radiation Therapy ◽  
Disease Progression ◽  
Surgical Resection ◽  
Local Control ◽  
Benign Neoplasm ◽  
Good Prognosis ◽  
Juvenile Nasopharyngeal Angiofibroma ◽  
Adjuvant Radiation ◽  
Nasopharyngeal Angiofibroma ◽  
Presenting Symptoms

Juvenile nasopharyngeal angiofibroma (JNA) is a relatively uncommon, benign neoplasm of the nasopharynx that can be very difficult to diagnose early due to inconspicuous and seemingly harmless presenting symptoms. Early diagnosis and treatment of JNA are essential for a good prognosis. JNA typically responds well to radiation therapy (RT), but when it does not, the most appropriate next course of action has not been readily defined due to the limited occurrence and experience with this neoplasm. Herein, we describe a JNA patient, who continued to progress after surgery and 36 Gy of adjuvant radiation, but after an additional 14.4 Gy, he has remained in remission for over 2 years. An 11-year-old boy who presented with JNA underwent treatment with embolization and surgical resection. Unfortunately, the tumor progressed within 2 months of surgical intervention and he required RT for adequate local control. While undergoing RT, he again demonstrated signs of progression; so his radiation regimen was increased from 3,600 cGy in 20 fractions to 5,040 cGy in 28 fractions. Since completing RT, the tumor has continued to decrease in size, and the patient is stable and has been without signs of disease progression for over 24 months now. Thus, escalating the radiation regimen to 5,040 cGy may improve local control in rapidly progressive JNA.

scholarly journals KANK1-NTRK3 fusions define a subset of BRAF mutation negative renal metanephric adenomas

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Aida Catic ◽  
Amina Kurtovic-Kozaric ◽  
Ardis Sophian ◽  
Lech Mazur ◽  
Faruk Skenderi ◽  
...  
Keyword(s):  
Papillary Renal Cell Carcinoma ◽  
Genetic Alterations ◽  
Chromosome 9 ◽  
Chromosome 15 ◽  
Fish Analysis ◽  
Renal Neoplasm ◽  
Metanephric Adenoma ◽  
Cytogenetic Aberration ◽  
Conventional Cytogenetic Analysis ◽  
Formalin Fixed Paraffin Embedded

Abstract Background Metanephric adenoma (MA) is a rare benign renal neoplasm. On occasion, MA can be difficult to differentiate from renal malignancies such as papillary renal cell carcinoma in adults and Wilms̕ tumor in children. Despite recent advancements in tumor genomics, there is limited data available regarding the genetic alterations characteristic of MA. The purpose of this study is to determine the frequency of metanephric adenoma cases exhibiting cytogenetic aberration t (9;15)(p24;q24), and to investigate the association between t (9,15) and BRAF mutation in metanephric adenoma. Methods This study was conducted on 28 archival formalin fixed paraffin-embedded (FFPE) specimens from patients with pathologically confirmed MA. Tissue blocks were selected for BRAF sequencing and fluorescent in situ hybridization (FISH) analysis for chromosomal rearrangement between KANK1 on chromosome 9 (9p24.3) and NTRK3 on chromosome 15 (15q25.3), which was previously characterized and described in two MA cases. Results BRAFV600E mutation was identified in 62% of our cases, 9 (38%) cases were BRAFWT, and 4 cases were uninformative. Of the 20 tumors with FISH results, two (10%) were positive for KANK1-NTRK3 fusion. Both cases were BRAFWT suggesting mutual exclusivity of BRAFV600E and KANK1-NTRK3 fusion, the first such observation in the literature. Conclusions Our data shows that BRAF mutation in MA may not be as frequent as suggested in the literature and KANK-NTRK3 fusions may account for a subset of BRAFWT cases in younger patients. FISH analysis for KANK1-NTRK3 fusion or conventional cytogenetic analysis may be warranted to establish the diagnosis of MA in morphologically and immunohistochemically ambiguous MA cases lacking BRAF mutations.

scholarly journals Mixed Adenoneuroendocrine Carcinoma of the Gastroesophageal Junction: A Rare Find

2017 ◽  
Vol 5 (4) ◽  
pp. 232470961775018 ◽  
Author(s):  
Paurush Ambesh ◽  
Joseph Weissbrot ◽  
Sabina Ratner ◽  
Ankur Sinha ◽  
Ravikaran Patti ◽  
...  
Keyword(s):  
Gastroesophageal Junction ◽  
Neuroendocrine Differentiation ◽  
Tumor Type ◽  
Imaging Studies ◽  
Management Options ◽  
Biopsy Material ◽  
Management Guidelines ◽  
Neoplastic Lesions ◽  
Esophageal Tumors ◽  
Current Report

Neoplastic lesions that demonstrate neuroendocrine features are rare. However, esophageal tumors containing both adenocarcinomatous and neuroendocrine components are exceedingly rare. Mixed adenoneuroendocrine carcinomas (MANECs) are gastrointestinal tumors with both adenocarcinomatous and neuroendocrine differentiation. They have a tendency for early metastases but clinically manifest relatively late. Imaging studies are often nonspecific with regard to tumor type, and a histopathologic study of biopsy material is required for definitive diagnosis. The overall prognosis is poor. The current report describes a rare case of gastroesophageal MANEC tumor, with approximately 60% neuroendocrine and 40% adenocarcinomatous components. Since there is a dearth of concrete management guidelines for MANECs, we present possible management options to add to the existing literature.

Ovarian Sparing Surgery in Mature Ovarian Teratomas in Children: A 20-Year Single-Center Experience

2020 ◽  
Author(s):  
Olga Szymon ◽  
Bartosz Bogusz ◽  
Anna Taczanowska-Niemczuk ◽  
Marcin Maślanka ◽  
Wojciech Górecki
Keyword(s):  
Postoperative Morbidity ◽  
Good Prognosis ◽  
Ovarian Teratoma ◽  
Single Center Experience ◽  
Complementary Approach ◽  
Tumor Transformation ◽  
Benign Nature ◽  
Chemical Peritonitis ◽  
Bilateral Lesions

Abstract Introduction Despite its benign nature, possible bilateral presentation, and a very good prognosis, ovarian sparing tumorectomy (OST) in mature ovarian teratoma (MOT) is not commonly performed. Unilateral oophorectomy has physiological consequences, while bilateral is devastating. The aim of this study is promotion of OST in MOT among children. Materials and Methods We reviewed 120 patients operated for MOT between August 1999 and 2019. Results Ovariectomy was performed in 15 patients (14 between 1999 and 2009 and 1 after 2010). In 105 girls, OST was possible including 32 with ovarian torsion. The approach was laparoscopy in 30 girls (11 conversions) and laparotomy in 94. Intra-abdominal spillage occurred in 30% of laparoscopic dissections. Postoperative morbidity was not associated with surgical approach (p = 0.613) or presence of adnexal torsion (p = 0,608). Follow-up was from 4 months to 9 years (median = 4 years) with access to 90% of patients. Bilateral lesions were observed in six (synchronous in five and metachronous in one) patients. Recurrence appeared in three patients operated via laparotomy and OST (after 12, 46, and 74 months). In one girl, asynchronous contralateral MOT was found 5 years after unilateral oophorectomy. Ovarian regeneration after torsion was observed in sonography in 84.4% of the patients. None of the patients experienced chemical peritonitis or malignant tumor transformation. Conclusion OST is safe and effective and should be the first-line procedure in children. Laparoscopy and laparotomy constitute a complementary approach to MOT. Ultrasound follow-up is necessary to monitor recurrence, contralateral disease, and ovarian regeneration.

scholarly journals Pediatric Differentiated Thyroid Carcinoma: Outcome in Response to Initial Treatment

2019 ◽  
Vol 24 (2) ◽  
pp. 143-148
Author(s):  
Md Mosleh Uddin ◽  
Syed Farhan Ali Razib ◽  
Kazi Shameemus Salam ◽  
Mohd Abdus Sattar ◽  
Belayat Hossain Siddiquee
Keyword(s):  
Adverse Effects ◽  
Thyroid Carcinoma ◽  
Total Thyroidectomy ◽  
Initial Treatment ◽  
Differentiated Thyroid Carcinoma ◽  
Good Prognosis ◽  
Imaging Studies ◽  
Patients Experience ◽  
Longterm Outcome

Introduction: Though the differentiated thyroid carcinoma in children is a common pediatric endocrine malignancy, its prognosis is excellent with a proper initial treatment. Objectives: This is to evaluate the initial treatment patern for a good prognosis with longterm outcome in pediatric DTC patients. Methods: This study is a prospective one done in BSMMU during a period of 10 years in 52 post-operative pediatric DTC patients after excluding the follow-up missing patients. These patients are yet in a regular follow-up were outcome evaluated with clinical, pathological & imaging studies. Results: All the patients got initial treatment of total thyroidectomy. About half of the group had undergone neck dissection along with total thyroidectomy. Forty six patients had taken 131-I therapy. The survival is 100%. Conclusion: The life expectancy for children with DTC is excellent. However, many patients experience adverse effects from thyroid surgery, resulting in life long complications.  Bangladesh J of Otorhinolaryngology; October 2018; 24(2): 143-148

scholarly journals Renal Adenomas: Pathological Differential Diagnosis with Malignant Tumors

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
F. Algaba
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Malignant Tumors ◽  
Papillary Renal Cell Carcinoma ◽  
Renal Tumors ◽  
Maximum Diameter ◽  
Metanephric Adenoma ◽  
Cytological Features ◽  
Tumors Classification

The renal adenomas can be confused by imaging diagnosis with malignant renal tumors, but there are also real biological dilemmas to determine their behavior. The consensus decisions are the following. (1) The adenoma of clear cells is not accepted, instead it is considered that all the clear-cell tumors are carcinomas, with greater or lesser aggressiveness. (2) Among the papillary neoplasms the WHO 2004 renal cell tumors classification are considered as papillary adenomas tumors with a maximum diameter of 5 mm and may represent a continuum biological process to papillary renal cell carcinoma. The papillary adenomas associated with End-kidney and/or acquired cystic disease may have a different pathogenesis. (3) To consider a tumor as an oncocytoma the size is not important, only the cytological features, microscopic, ultrastructural, and immunohistochemically can help, but some chromosomal observations introduce some questions about its relation with the chromophobe renal cell carcinoma. (4) Finally, the metanephric adenoma, a tumor with some morphological similarity with the nephroblastoma must be considered in the renal adenomas diagnosis.

Renal Metanephric Adenoma Mimicking Papillary Renal Cell Carcinoma on Computed Tomography: A Case Report

2013 ◽  
Vol 90 (3) ◽  
pp. 369-372 ◽  
Author(s):  
Akinori Masuda ◽  
Takao Kamai ◽  
Tomoya Mizuno ◽  
Tsunehito Kambara ◽  
Hideyuki Abe ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Renal Cell Carcinoma ◽  
Case Report ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Papillary Renal Cell Carcinoma ◽  
Metanephric Adenoma

scholarly journals Adult Nephroblastoma with Predominant Epithelial Component: A Differential Diagnostic Candidate of Papillary Renal Cell Carcinoma and Metanephric Adenoma—Report of Three Cases

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Shiho Watanabe ◽  
Hiroshi Naganuma ◽  
Michio Shimizu ◽  
Satoshi Ota ◽  
Shin-ichi Murata ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Tumor Cells ◽  
Renal Cell ◽  
Benign Tumor ◽  
Renal Tumor ◽  
Papillary Renal Cell Carcinoma ◽  
Metanephric Adenoma ◽  
Old Females ◽  
Epithelial Element

Although nephroblastoma is the commonest renal tumor of childhood, it is rare in adults. In cases of predominantly epithelial type occurring in adulthood, it might be difficult to distinguish it from papillary renal cell carcinoma and metanephric adenoma. Here, we report three cases of adult epithelial nephroblastoma in 24-, 76-, and 21-year-old females. Histologically, the tumors were composed of papillotubular architectures of small and uniform tumor cells with high nucleocytoplasmic ratio without blastemal element. Immunohistochemically, the tumor cells were positive for WT-1 and CD57 but negative for AMACR, which was helpful to exclude the possibility of papillary renal cell carcinoma. Metanephric adenoma is a benign tumor, which can be distinguished by the observation of the cellular atypism and growth pattern. However, nephroblastoma with predominant epithelial element mimics the malignant counterpart of metanephric adenoma, that is, “metanephric adenocarcinoma.”

A Composite Renal Tumor: Metanephric Adenofibroma, Wilms Tumor, and Renal Cell Carcinoma: A Missing Link?

2012 ◽  
Vol 15 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Maria Laura Galluzzo ◽  
Maria T. Garcia de Davila ◽  
Gordan M. Vujanić
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Renal Tumor ◽  
Wilms Tumor ◽  
Papillary Renal Cell Carcinoma ◽  
Renal Tumors ◽  
Metanephric Adenoma ◽  
Missing Link ◽  
Additional Support

A coexistence of different renal tumors has rarely been reported. The most commonly described association is of Wilms tumor and renal cell carcinoma. Metanephric adenofibroma has also been associated with Wilms tumor or papillary renal cell carcinoma. Another reported association is metanephric adenoma and papillary renal cell carcinoma with sarcomatoid dedifferentiation. Herein we describe a complex renal tumor containing areas of metanephric adenofibroma, Wilms tumor, and undifferentiated renal cell carcinoma in a previously healthy 18-year-old boy. The tumor showed histologic and immunohistochemical features of these 3 different tumors, offering additional support to the view that these 3 tumors are related.

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