A parasitic leiomyoma of the sigmoid mesentery with schwannoma-like image findings.

Laparoscopic myomectomy Parasitic leiomyoma Schwannoma

Journal

Surgical case reports
ISSN: 2198-7793
Titre abrégé: Surg Case Rep
Pays: Germany
ID NLM: 101662125

Informations de publication

Date de publication:
10 Sep 2024
Historique:
received: 14 03 2024
accepted: 02 09 2024
medline: 10 9 2024
pubmed: 10 9 2024
entrez: 10 9 2024
Statut: epublish

Résumé

Parasitic leiomyoma (PL) consists of uterine fibroids separate from the uterus that grow in extrauterine tissues such as the peritoneum and mesenterium. The diagnosis of PL requires a thorough medical history of laparoscopic myomectomies using a morcellator and the identification of typical magnetic resonance imaging (MRI) findings as uterine fibroids. Imaging diagnosis of PL is occasionally difficult when PL degenerates in various ways, owing to atypical findings on computed tomography (CT) and MRI. A 29-year-old woman with a history of laparoscopic myomectomy visited a local hospital with lower abdominal pain. A mesenteric tumor on the sigmoid mesentery was suspected on MRI, and she was referred to our hospital. CT scan showed strong early contrast uptake in the center of the tumor, and MRI T2-weighted images showed high signals at the tumor margins and low signals in the center, suggesting a schwannoma. PL was also part of the differential diagnosis because of the patient's history of laparoscopic myomectomy. With a preoperative diagnosis of a sigmoid colon mesenteric tumor undeniably of malignant origin, laparoscopic resection of the sigmoid mesenteric tumor was performed. Histopathological examination revealed it to be a PL. We report a case of PL of the sigmoid mesentery with schwannoma-like findings on imaging that was treated laparoscopically. PL is sometimes difficult to distinguish from schwannomas because of the variety of imaging findings, such as uterine fibroids. PL should be considered in the differential diagnosis of mesenteric tumors following laparoscopic myomectomies, even if it does not show typical imaging findings, such as uterine fibroids.

Sections du résumé

BACKGROUND BACKGROUND
Parasitic leiomyoma (PL) consists of uterine fibroids separate from the uterus that grow in extrauterine tissues such as the peritoneum and mesenterium. The diagnosis of PL requires a thorough medical history of laparoscopic myomectomies using a morcellator and the identification of typical magnetic resonance imaging (MRI) findings as uterine fibroids. Imaging diagnosis of PL is occasionally difficult when PL degenerates in various ways, owing to atypical findings on computed tomography (CT) and MRI.
CASE PRESENTATION METHODS
A 29-year-old woman with a history of laparoscopic myomectomy visited a local hospital with lower abdominal pain. A mesenteric tumor on the sigmoid mesentery was suspected on MRI, and she was referred to our hospital. CT scan showed strong early contrast uptake in the center of the tumor, and MRI T2-weighted images showed high signals at the tumor margins and low signals in the center, suggesting a schwannoma. PL was also part of the differential diagnosis because of the patient's history of laparoscopic myomectomy. With a preoperative diagnosis of a sigmoid colon mesenteric tumor undeniably of malignant origin, laparoscopic resection of the sigmoid mesenteric tumor was performed. Histopathological examination revealed it to be a PL.
CONCLUSIONS CONCLUSIONS
We report a case of PL of the sigmoid mesentery with schwannoma-like findings on imaging that was treated laparoscopically. PL is sometimes difficult to distinguish from schwannomas because of the variety of imaging findings, such as uterine fibroids. PL should be considered in the differential diagnosis of mesenteric tumors following laparoscopic myomectomies, even if it does not show typical imaging findings, such as uterine fibroids.

Identifiants

pubmed: 39254765
doi: 10.1186/s40792-024-02015-4
pii: 10.1186/s40792-024-02015-4
doi:

Types de publication

Journal Article

Langues

eng

Pagination

212

Informations de copyright

© 2024. The Author(s).

Références

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Auteurs

Koki Fujiwara (K)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Chisato Takagi (C)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan. ctakagi1489@gmail.com.

Michio Sato (M)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Toshiki Tokuda (T)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Masato Tomita (M)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Atsunori Sugita (A)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Kohei Furuya (K)

Department of Radiology, Keio University Hospital, 35, Shinanomachi, Shinjuku-Ku, Tokyo, 160-0016, Japan.

Makoto Jinushi (M)

Department of Obstetrics and Gynecology, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Toshiyuki Mitsuya (T)

Department of Pathology, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Nobutoshi Ando (N)

Department of Surgery, International Goodwill Hospital, 1-28-1, Nishigaoka, Izumi-Ku, Yokohama, Kanagawa, 245-0006, Japan.

Classifications MeSH