Comprehensive clinicopathologic characteristics of intraabdominal neurogenic tumors: Single institution experience
| Autor: | Meral Uner, Gokhan Gedikoglu, Taylan Kav, Cem Simsek, Cenk Sokmensuer, Feride Ozkara, Orkun Akman, Aytekin Akyol |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Neurofibroma Schwannoma business.industry General surgery Mesenchymal tumors Malignant peripheral sheath tumor General Medicine medicine.disease Intraabdominal 03 medical and health sciences 0302 clinical medicine Neurogenic tumors Retrospective Study 030220 oncology & carcinogenesis Medicine 030211 gastroenterology & hepatology Single institution business |
| Zdroj: | World Journal of Clinical Cases |
| ISSN: | 2307-8960 |
| Popis: | BACKGROUND Neurogenic tumors are rare but represent an important consideration in the differential diagnosis of abdominal mesenchymal tumors. Reports on their incidence, pathological features and clinical characteristics are scarce. AIM To advance the overall knowledge on the histologic, immunohistochemical, clinical and radiologic characteristics of neurogenic tumors through this case series. METHODS An established database of a nationwide tertiary referral center, covering a 15-year period (2005 and 2020), was retrospectively re-evaluated. Diagnoses of neurogenic tumor cases were confirmed by two experts following review of the macroscopic, histological and immunohistochemical records along with findings from analysis of archived tissue sections for each included patient. Tissue microarrays were constructed for cases lacking necessary immunohistochemical studies. Clinical data and follow-up information were collected from the hospital records and the patients themselves, when available. RESULTS The study included 19 cases of intraabdominal neurogenic tumors, representing 12 women and 7 men, between 18 and 86 years of age (median: 51 years). Final confirmed diagnoses were 12 schwannomas, 2 diffuse submucosal neuro-fibromatoses, 2 ganglioneuromas, 2 malignant peripheral sheath nerve tumors, and 1 mucosal Schwann cell hamartoma. Sizes of the tumors were variable, with a median diameter of 4 cm; the two largest (> 10 cm) were schwannomas. The majority of cases were asymptomatic at presentation, but the most frequent symptom was abdominal pain. Gastrointestinal tract lesions were detected with endoscopy and extra-luminal lesions were detected with cross-sectional imaging. All cases were S100-positive and CD117-negative; most cases were negative for desmin, epithelial membrane antigen, smooth muscle actin and CD34. In all but 5 cases, the Ki67 proliferation index was ≤ 1%. CONCLUSION Re-evaluation of 19 cases of abdominal neurogenic tumors demonstrated con-siderable variability in clinicopathologic characteristics depending on location, dimension and histological features. |
| Databáze: | OpenAIRE |
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