scholarly journals Invasive neuroendocrine tumor of the kidney: a case report

Rare Tumors ◽  
2009 ◽  
Vol 1 (2) ◽  
pp. 115-116
Author(s):  
Ephrem O Olweny ◽  
Michael H Hsieh ◽  
Jill C Buckley ◽  
Jack W McAninch

Neuroendocrine tumors (NETs) involve the genitourinary system in less than 1% of cases, with primary renal carcinoids comprising only 19% of reported genitourinary NETs (56 cases worldwide). We report a case of a renal NET presenting as a large renal mass with extensive local invasion, requiring definitive radical en bloc resection via a thoracoabdominal approach.

Author(s):  
João Isidro Fracasso ◽  
Antônio Benincá Albuquerque ◽  
André Luca Boeira Rovani ◽  
Larissa Maroni ◽  
Guilherme Baroni De Macedo ◽  
...  

Neuroendocrine tumors (NETs) are epithelial neoplasms with predominant neuroendocrine differentiation that arise in most organs of the body. Neuroendocrine tumors of the thymus (tNET) and mediastinum are very uncommon. We report the case of a 49-year-old male patient with neuroendocrine tumor of the thymus, superiorly in the anterior mediastinum, asymptomatic of the respiratory tract presenting with epigastric pain, treated with the lesion's surgical resection en bloc associated with radiotherapy and chemotherapy.


Endoscopy ◽  
2021 ◽  
Author(s):  
Hugo Uchima ◽  
Alberto Diez-Caballero ◽  
Jaume Capdevila ◽  
Mercé Rosinach ◽  
Alfredo Mata ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jeongseok Kim ◽  
Jisup Kim ◽  
Eun Hye Oh ◽  
Nam Seok Ham ◽  
Sung Wook Hwang ◽  
...  

AbstractSmall rectal neuroendocrine tumors (NETs) can be treated using cap-assisted endoscopic mucosal resection (EMR-C), which requires additional effort to apply a dedicated cap and snare. We aimed to evaluate the feasibility of a simpler modified endoscopic mucosal resection (EMR) technique, so-called anchored snare-tip EMR (ASEMR), for the treatment of small rectal NETs, comparing it with EMR-C. We retrospectively evaluated 45 ASEMR and 41 EMR-C procedures attempted on small suspected or established rectal NETs between July 2015 and May 2020. The mean (SD) lesion size was 5.4 (2.2) mm and 5.2 (1.7) mm in the ASEMR and EMR-C groups, respectively (p = 0.558). The en bloc resection rates of suspected or established rectal NETs were 95.6% (43/45) and 100%, respectively (p = 0.271). The rates of histologic complete resection of rectal NETs were 94.1% (32/34) and 88.2% (30/34), respectively (p = 0.673). The mean procedure time was significantly shorter in the ASEMR group than in the EMR-C group (3.12 [1.97] vs. 4.13 [1.59] min, p = 0.024). Delayed bleeding occurred in 6.7% (3/45) and 2.4% (1/41) of patients, respectively (p = 0.618). In conclusion, ASEMR was less time-consuming than EMR-C, and showed similar efficacy and safety profiles. ASEMR is a feasible treatment option for small rectal NETs.


Author(s):  
Houssem Harbi ◽  
Amira Akrout ◽  
Mohamed Fourati ◽  
Amine Zouari ◽  
Nozha Toumi

A 68-year-old female was operated for a giant dedifferentiated retroperitoneal liposarcoma (RLS) encasing entirely the right kidney. She had an en-bloc resection of the tumor with right nephrectomy. The en-bloc resection should avoid R1 resection margins. Renal conservation is suggested if the kidney is widely displaced and for elderly patient.


2020 ◽  
Vol 29 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Hideki Kobara ◽  
Yoichi Miyaoka ◽  
Yoshio Ikeda ◽  
Takayoshi Yamada ◽  
Masashi Takata ◽  
...  

Background and Aims: Endoscopic submucosal dissection (ESD) seems to be a reasonable option for gastrointestinal subepithelial lesions (SELs) localized within the submucosa. Indications for ESD include small neuroendocrine tumors (NETs) and indeterminate SELs. However, the prospective data regarding ESD and surveillance remain unclear. This study was performed to prospectively investigate the outcomes of ESD, including organ-specific outcomes and the mid-term prognosis. Methods: This prospective multicenter study included 57 patients who underwent ESD for SELs localized within the submucosa [definite NETs (n = 42) and indeterminate SELs (n = 15)]. The efficacy and safety of ESD were evaluated in the whole cohort and in subgroups (NETs and indeterminate SELs). All patients were followed up. Results: The rates of en bloc resection, curative resection, and complications were 98.2%, 66.7%, and 7.7% for the overall population (n=57); 100%, 61.9%, and 2.4% for NETs (n=42); and 93.3%, 80.0%, and 20.0% for indeterminate SELs (n=15), respectively. The rates of curative resection for NETs were poorer in the stomach (20%, n=5) and duodenum (33%, n=3) than in the rectum (71%, n=34). Including 11 of 16 patients with NETs who underwent a conservative approach resulting in non-curative resection, no patients developed tumor recurrence during the follow-up period (median, 24.5 months; range, 1–60 months). ESD followed by surveillance demonstrated acceptable mid-term outcomes for non-curative NETs. Conclusions: ESD can be an efficient therapy for SELs localized within the submucosa. However, gastric and duodenal ESD for NETs may be limited in terms of its curative and technical aspects. Clinicians should be aware of the potential complications of ESD for indeterminate SELs.


2016 ◽  
Vol 1 ◽  
pp. 45-45 ◽  
Author(s):  
Il Hyun Baek ◽  
Jung Won Jeon ◽  
Hyun Phil Shin ◽  
Jae Myung Cha ◽  
Kwang Ro Joo ◽  
...  

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