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An extremely rare case of neuromuscular and vascular hamartoma of the appendix

Authors
  • Sasaki, Takahiro1
  • Furuhata, Tomohisa1
  • Nishimura, Masashige1
  • Ono, Tatsunori1
  • Noda, Akiyoshi1
  • Koizumi, Hirotaka1
  • Miyajima, Nobuyoshi1
  • Otsubo, Takehito2
  • 1 St. Marianna University School of Medicine, 3-435, Kosugicho, Nakahara-ku, Kawasaki, Japan , Kawasaki (Japan)
  • 2 St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kasawaki, Japan , Kasawaki (Japan)
Type
Published Article
Journal
Surgical Case Reports
Publisher
Springer Berlin Heidelberg
Publication Date
Aug 24, 2020
Volume
6
Issue
1
Identifiers
DOI: 10.1186/s40792-020-00970-2
Source
Springer Nature
Keywords
License
Green

Abstract

BackgroundNeuromuscular and vascular hamartoma is a rare lesion of the small intestine, with only 26 cases reported since its initial description in 1982. No occurrence of hamartoma in the appendix has been reported until now.Case presentationA 60-year-old man had been suffering from longstanding right lower quadrant pain. Abdominal computed tomography showed a slight swelling of the appendix as the possible cause of his pain. Laparoscopic appendectomy with partial resection of the cecum was performed for diagnostic and therapeutic purposes. An 18 × 10-mm lesion located on the tip of the appendix was found in the resected specimen. Pathological examination showed that the lesion was covered with normal mucosa and consisted of adipose tissue, smooth muscle fibers, small vessels, and neural fibers. These findings were consistent with neuromuscular and vascular hamartoma of the appendix.ConclusionThis is the first report of neuromuscular and vascular hamartoma arising from the appendix.

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