Schwannom des Ösophagus

Oesophageal
schwannoma. CT with sagittal view showing a low-density mass surrounded by the trachea and vertebrae. The tumour also compresses the trachea.
www.eurorad.org • CC by-nc-sa-4.0
Resection of
an esophageal schwannoma with thoracoscopic surgery: a case report. Endoscopic findings. This endoscopic photograph demonstrates the submucosal tumor of the esophagus. It occupied the most of the esophageal lumen
surgicalcasereports.springeropen.com • CC-by-4.0
Resection of
an esophageal schwannoma with thoracoscopic surgery: a case report. CT and FDG-PET CT findings. a Computed tomography revealed a large isodense mass of the esophageal wall in the upper mediastinal space. b Accumulation of fluorodeoxyglucose is demonstrated in the upper thoracic esophagus
surgicalcasereports.springeropen.com • CC-by-4.0
Benign
esophageal schwannoma: a brief overview and our experience with this rare tumor. The examination image before the operation. a Endoscopy revealed an approximately 5.0 cm esophageal submucosal tumor, which was located 25 cm from the incisors. It occupied the majority of the esophageal lumen. b Computed tomography revealed a large isodense tumor of the esophageal wall in the upper mediastinal space (white arrow). c Endoscopic ultrasonography showed a large tumor (white arrow) of low echogenicity in the submucosa layer
surgicalcasereports.springeropen.com • CC-by-4.0
Esophageal
schwannoma: a case report. Chest computed tomography (CT) scan showed a lobulated tumor (75 × 57 × 80 mm) in the upper to middle mediastinum. The arrow shows compression of the esophagus.
wjso.biomedcentral.com • CC-by-2.0
Enucleation
of giant esophageal schwannoma of the upper thoracic esophagus: reports of two cases. The chest CT revealed a heterogeneous large mass in the esophagus and tracheal compression (arrow).
wjso.biomedcentral.com • CC-by-2.0
Enucleation
of giant esophageal schwannoma of the upper thoracic esophagus: reports of two cases. Hypermetabolic activity (SUVmax: 9.9) was shown by positron emission tomography.
wjso.biomedcentral.com • CC-by-2.0
Lizenz: CC BY-SA 4.0

Schwannom des Ösophagus

Schwannome des Gastrointestinaltraktes Radiopaedia • CC-by-nc-sa 3.0 • de

Gastrointestinal schwannomas are extremely rare mesenchymal neoplasms which arise in relation to the gastrointestinal tract.

Epidemiology

They are reported to typically present at about the 3to 5 decades of life .

Clinical presentation

Patients are often asymptomatic but may occasionally present with abdominal discomfort or upper gastrointestinal bleeding from overlying mucosal ulceration.

Pathology

Although they arise from Schwann cells of the gastrointestinal wall neural plexa , they are considered to be distinctively different from the conventional schwannomas that arise in soft tissue or the central nervous system in terms of histological features.

Location
  • esophagus (rare; DD leiomyoma)
  • stomach: 60-70% of cases (commonest location)
  • colon: next commonest location
  • rectum
Markers

S100 protein is strongly positive .

Radiographic features

CT
  • typically seen as a well-defined, rounded, mural mass(es) with homogeneous attenuation
  • tends to lack cystic change and hemorrhage
MRI

Reported features include :

  • T1: low or intermediate signal
  • T1 C+ (Gd): may demonstrate slow but relative uniform enhancement
  • T2: high signal

Treatment and prognosis

They are benign tumors and carries a much better prognosis compared with gastrointestinal stromal tumors.

History and etymology

Initially reported by Daimaru et al. in 1988

Differential diagnoses

Siehe auch:
Assoziationen und Differentialdiagnosen zu Schwannom des Ösophagus:
benigne
Ösophagustumoren
Wikipedia • CC BY-SA 3.0
Leiomyom
Ösophagus
wjso.biomedcentral.com • CC-by-2.0
Schwannome
des Gastrointestinaltraktes
www.eurorad.org • CC by-nc-sa-4.0