Neuroendocrine tumor arising from the greater omentum treated with laparoscopic tumor resection: a case report.
Laparoscopic surgery
Neuroendocrine tumor
Omental tumor
Journal
Surgical case reports
ISSN: 2198-7793
Titre abrégé: Surg Case Rep
Pays: Germany
ID NLM: 101662125
Informations de publication
Date de publication:
01 Jun 2021
01 Jun 2021
Historique:
received:
17
02
2021
accepted:
24
05
2021
entrez:
1
6
2021
pubmed:
2
6
2021
medline:
2
6
2021
Statut:
epublish
Résumé
Primary omental tumors are extremely rare. Herein, we report the first case of a primary omental neuroendocrine tumor (NET). A 59-year-old woman was referred to our hospital for the treatment of an 18-mm tumor located at the ventral side of the duodenum. No other tumor was detected. The preoperative imaging diagnosis was omental tumor. A laparoscopic tumor resection was performed. Histopathological examination revealed that the tumor consisted of cuboidal cells with eosinophilic, granular cytoplasm showing trabecular or ribbon architecture. No other component was seen. The mitotic count was of 5 per 10 high-power fields. Immunohistochemical staining was positive for chromogranin A, synaptophysin, and CD56. Her Ki-67 index was 5%. These results led to the diagnosis of grade 2 omental NET. The patient was discharged on the 3rd postoperative day without any complications and did not develop any recurrence for 3 years. We encountered a very rare case of omental NET. Complete resection is recommended with minimally invasive surgery for the diagnosis of NET.
Sections du résumé
BACKGROUND
BACKGROUND
Primary omental tumors are extremely rare. Herein, we report the first case of a primary omental neuroendocrine tumor (NET).
CASE PRESENTATION
METHODS
A 59-year-old woman was referred to our hospital for the treatment of an 18-mm tumor located at the ventral side of the duodenum. No other tumor was detected. The preoperative imaging diagnosis was omental tumor. A laparoscopic tumor resection was performed. Histopathological examination revealed that the tumor consisted of cuboidal cells with eosinophilic, granular cytoplasm showing trabecular or ribbon architecture. No other component was seen. The mitotic count was of 5 per 10 high-power fields. Immunohistochemical staining was positive for chromogranin A, synaptophysin, and CD56. Her Ki-67 index was 5%. These results led to the diagnosis of grade 2 omental NET. The patient was discharged on the 3rd postoperative day without any complications and did not develop any recurrence for 3 years.
CONCLUSIONS
CONCLUSIONS
We encountered a very rare case of omental NET. Complete resection is recommended with minimally invasive surgery for the diagnosis of NET.
Identifiants
pubmed: 34061282
doi: 10.1186/s40792-021-01217-4
pii: 10.1186/s40792-021-01217-4
pmc: PMC8167924
doi:
Types de publication
Journal Article
Langues
eng
Pagination
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