scholarly journals Primary Cerebellar Neuroendocrine Tumors: Chimeras or Real Entities A Case Report with a 6-Year Follow-Up

2016 ◽  
Vol 9 (2) ◽  
pp. 432-439
Author(s):  
Claudio Vernieri ◽  
Daniela Femia ◽  
Sara Pusceddu ◽  
Carlo Capella ◽  
Juan Rosai ◽  
...  

We report the case of a 38-year-old patient who was diagnosed with a cerebellar well-differentiated neuroendocrine tumor (WDNET) in 2009. At first glance, we believed that it was a metastasis from an unrecognized WDNET arising outside the cerebellum. However, despite a prolonged follow-up of 6 years, an extracranial WDNET has never been found. During this time, the tumor recurred locally twice, and the patient was treated with surgery and radiotherapy. At the moment, he enjoys good general conditions and his tumor is under control. Due to the histopathological characteristics and clinical behavior of the tumor, we believe that this is the first report to date of a primary cerebellar WDNET.

2021 ◽  
Author(s):  
Qi Yu ◽  
Zhen Li ◽  
Xinwei Han

Abstract Neuroendocrine tumors in the mediastinum are relatively rare. We report a patient with mediastinal neuroendocrine tumor that was successfully resected after descending stage by drug-eluting embolic transcatheter arterial chemoembolization had been performed. No tumor recurrence was found in the 1-year follow-up after surgical resection.


Author(s):  
Sulagna Manna ◽  
Suma Mysore Narayana ◽  
C. S. Premalata

Primary pure neuroendocrine tumors of the testis are rare with a high malignant potential requiring long-term follow-up. Only limited number of studies are available in the literature. In the present study, we describe a case report of a 31 year old young man who presented with a left testicular swelling, initially misdiagnosed as seminoma. Later, after correlating with the morphology and immunohistochemistry the diagnosis of neuroendocrine tumor of testis was concluded. Neuroendocrine tumors cases should be kept in long term follow up, to prevent relapse and recurrence.


2021 ◽  
Author(s):  
Jane E. Rogers ◽  
Michael Lam ◽  
Daniel M. Halperin ◽  
Cecile G. Dagohoy ◽  
James C. Yao ◽  
...  

We evaluated outcomes of treatment with 5-fluorouracil (5-FU), doxorubicin, and streptozocin (FAS) in well-differentiated pancreatic neuroendocrine tumors (PanNETs) and its impact on subsequent therapy (everolimus or temozolomide). Advanced PanNET patients treated at our center from 1992 to 2013 were retrospectively reviewed. Patients received bolus 5-FU (400 mg/m2), streptozocin (400 mg/m2) (both IV, days 1-5) and doxorubicin (40 mg/m2 IV, day 1) every 28 days. Overall response rate (ORR) was assessed using RECIST version 1.1. Of 243 eligible patients, 220 were evaluable for ORR, progression-free survival (PFS), and toxicity. Most (90%) had metastatic, nonfunctional PanNETs; 14% had prior therapy. ORR to FAS was 41% (95% confidence interval [CI]: 36-48%). Median follow-up was 61 months. Median PFS was 20 (95% CI: 15-23) months; median overall survival (OS) was 63 (95% CI: 60-71) months. Cox regression analyses suggested improvement with first-line vs subsequent lines of FAS therapy. Main adverse events ≥ grade 3 were neutropenia (10%) and nausea/vomiting (5.5%). Dose reductions were required in 32% of patients. Post-FAS everolimus (n=108; 68% second line) had a median PFS of 10 (95% CI: 8-14) months. Post-FAS temozolomide (n=60; 53% > fourth line) had an ORR of 13% and median PFS of 5.2 (95% CI: 4-12) months. In this largest reported cohort of PanNETs treated with chemotherapy, FAS demonstrated activity without significant safety concerns. FAS did not appear to affect subsequent PFS with everolimus; this sequence is being evaluated prospectively. Responses were noted with subsequent temozolomide-based regimens although PFS was possibly limited by line of therapy.


2013 ◽  
Vol 8 (1) ◽  
Author(s):  
Stefano Fiori ◽  
Alessandro Del Gobbo ◽  
Gabriella Gaudioso ◽  
Lucio Caccamo ◽  
Sara Massironi ◽  
...  

2018 ◽  
Vol 23 (03) ◽  
pp. 415-418
Author(s):  
Sakiko Mizuno ◽  
Kensuke Ochi ◽  
Jun Miyauchi ◽  
Itsuo Watanabe ◽  
Hiraku Hotta ◽  
...  

A liposarcoma is extremely rare in the digits. A 73-year-old woman was diagnosed with a lipoma in her middle finger 10 years ago. As this tumor increased in size and presented with imaging findings that were atypical of lipomas, careful marginal resection biopsy outside the pseudo-capsule was performed, and the tumor was diagnosed as a well-differentiated liposarcoma. At the 5-year follow-up, the patient showed no evidence of local recurrence or metastasis, with no loss of hand function. The findings from this case suggest that even for a lipomatous tumor in the digits, further imaging examination and resection biopsy should be considered if the tumor presents with features that are atypical of lipomas.


2021 ◽  
Vol 75 (1) ◽  
pp. 68-71
Author(s):  
Lukáš Bača ◽  
Róbert Psár ◽  
Martin Hanousek ◽  
Petr Fojtík

Neuroendocrine tumors are slow-growing neoplasms, histologically based on enteroendocrine cells. They are tumors with different degrees of differentiation, uncertain bio­logical nature and metastatic ability. Their most common localization is the gastrointestinal tract, with a special group of the neuroendocrine tumors of appendix, which are incidentally found after appendectomy. In case report, we would like to present a case of a patient with neuroendocrine tumors of appendix dia­gnosed by colonoscopy.


2020 ◽  
Vol 76 (1) ◽  
pp. 27-32
Author(s):  
Yan-Qun Zhang ◽  
Jie-Xian Wen ◽  
Rong-Kui Luo ◽  
Hai-Xia Yuan ◽  
Wen-Ping Wang

Duodenal neuroendocrine tumors are rare neoplasms arising from endocrine cells. Here we present a case of 32-year-old woman with Duodenal neuroendocrine tumors, report the imaging and contrast-enhanced Ultrasound (CEUS) features and review previous literatures of neuroendocrine tumors, which may be valuable for the differential diagnosis of duodenal neoplasms.


2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Iqra Haq ◽  
Somashekar G. Krishna ◽  
Bhaveshkumar Patel ◽  
Thavam Thambi-Pillai ◽  
Chencheng Xie ◽  
...  

Cystic pancreatic neuroendocrine tumors represent around 13% of all neuroendocrine tumors (Hurtado-Pardo 2017). There has been an increase in the incidence of cases due to improvement in imaging modalities. This is a case of a 68-year-old male with the incidental finding of a pancreatic cyst on CT. Initial Endoscopic Ultrasound with Fine Needle Aspiration (EUS-FNA) showed sonographic and cytology features suggestive of a pancreatic pseudocyst. However the cyst persisted with no change in size after aspiration leading to a follow-up EUS- FNA, which was combined with needle based confocal laser endomicroscopy (nCLE). The nCLE features were consistent with a cystic pancreatic neuroendocrine tumor, which was later confirmed on histology after surgical resection.


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