Annals of African Medicine
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ORIGINAL ARTICLE
Year : 2022  |  Volume : 21  |  Issue : 4  |  Page : 432-438

Clinicopathological features, risk profile assessment, and the surgical outcome of gastrointestinal stromal tumors in Lagos, Nigeria


1 Department of Surgery, General Surgery Unit, Lagos University Teaching Hospital, Lagos, Nigeria
2 Department of Anatomic and Molecular Pathology, Lagos University Teaching Hospital, Lagos, Nigeria

Correspondence Address:
Olanrewaju Samuel Balogun
Department of Surgery, College of Medicine, Lagos University Teaching Hospital, University of Lagos
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aam.aam_172_21

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Background: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. GISTs originate from the interstitial cells of Cajal and are most commonly found in the stomach. Most available reports on GISTs in the Sub-Sahara Africa were in case reports and case series. Aim: To report our local experience and challenges in the management of GISTs in 33 patients in Lagos, Nigeria. Methodology: This is a descriptive study of adult patients of 16 years and above managed for GISTs at the Lagos University Teaching Hospital and some Lagos private hospital facilities between January 2015 and March 2021. Information on the patients' demographic characteristics, clinicopathological features, surgery performed, and postoperative complications were retrieved from the hospital's medical records for analysis. Data analysis was carried out using IBM SPSS Statistics for Windows, Version 23.0., Armonk, NY, USA: IBM Corp. Results: Thirty-three patients comprising 19 males and 14 females with a male: female ratio of 1.4:1 were included in the study. The mean age at presentation was 52.5 years. Abdominal pain (69.7%) and anemic symptoms (45.4%) were the principal modes of presentation. Abdominal computed tomography (CT) scan revealed stomach as the primary source of GISTs in 75.8% of patients. Forty-five percent of the patients had CT features of local organ invasion and 27.2% had features of metastasis. Surgical resection was feasible in 28 (84.8%) patients. Postoperative mortality was recorded in two patients with recurrent GISTs. Histological cell types were spindle cell (57.6%), mixed spindle and epithelioid (24.2%), and epithelioid (18.2%). Joensuu high-risk tumors (64. 3%) were the most prevalent in our series. Conclusion: Advanced-stage disease and features of anemia were hallmarks of GISTs among patients in this series. Surgical resection of GIST may be possible in some cases of advanced disease. Spindle cell types and high-risk GISTs were the most common pathological varieties in our patients.


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