[Two cases of rectal NET excised by laparoscopic surgery].
Even if grade 1 neuroendocrine tumors (NET) have low malignant potential, they may still be associated with lymph node metastasis. While the World Health Organization (WHO) classification requires determination of the grade of malignancy and presence of metastasis, it is also useful to evaluate tumor diameter, extent of invasion, and histological characteristics(cell variant, nuclear atypia, and ductal invasion). The authors present 2 cases of rectal NET excised by laparoscopic surgery. Considerations for surgical indications in rectal NET are made based on these case reports.
Dept. of Organ Regulatory Surgery, Fukushima Medical University.
Takahiro
T
Nakajima
Yuko
Y
Murakami
Takashi
T
Yazawa
Shotaro
S
Fujita
Tomoyuki
T
Monma
Masashi
M
Takawa
Satoshi
S
Suzuki
Kensuke
K
Kumamoto
Izumi
I
Nakamura
Shinji
S
Ooki
Toru
T
Ootake
Seiichi
S
Takenoshita
D000328:Adult; D005260:Female; D006801:Humans; D010535:Laparoscopy; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D018358:Neuroendocrine Tumors / Q000601:surgery*; D011379:Prognosis; D012004:Rectal Neoplasms / Q000473:pathology / Q000601:surgery*