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1.
BMJ Case Rep ; 14(9)2021 09 14.
Artigo em Inglês | MEDLINE | ID: mdl-34521736

RESUMO

We report the case of a 27-year-old female patient from sub-Saharan Africa who presented with non-specific abdominal complaints, iron deficiency anaemia and multiple, large intra-abdominal cystic lesions on imaging. The lesions appeared to be a most unusual presentation of gastrointestinal stromal tumour (GIST). GIST is a sarcomatous tumour that comprises only 0.2% of all gastrointestinal (GI) tumours; it is the most common mesenchymal malignancy of the GI tract. Our patient had the succinate dehydrogenase-deficient (SDHD) subtype, identified in some 5%-10% of patients with GIST only, commonly found in women and younger patients. The differential diagnosis of intra-abdominal cystic lesions is briefly discussed, including the relevance of a correct pathological diagnosis. This impacts medical and surgical management decisions, including predicting response to targeted therapy. Tyrosine kinase inhibitor therapy has been a breakthrough in the treatment of GISTs, although with extensive disease, and certainly in case of the SDHD subtype, long-term outcome remains disappointing.


Assuntos
Anemia Ferropriva , Neoplasias Gastrointestinais , Tumores do Estroma Gastrointestinal , Adulto , África Subsaariana , Anemia Ferropriva/diagnóstico , Anemia Ferropriva/etiologia , Feminino , Neoplasias Gastrointestinais/complicações , Neoplasias Gastrointestinais/diagnóstico , Tumores do Estroma Gastrointestinal/complicações , Tumores do Estroma Gastrointestinal/diagnóstico , Humanos , Succinato Desidrogenase
2.
Am J Clin Pathol ; 156(5): 766-776, 2021 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-34050358

RESUMO

OBJECTIVES: Breast cancer immunohistochemistry (IHC) biomarker testing is limited in low-resource settings, and an alternative solution is needed. A point-of-care mRNA STRAT4 breast cancer assay for ESR1, PGR, ERBB2, and MKi67, for use on the GeneXpert platform, has been recently validated on tissues from internationally accredited laboratories, showing excellent concordance with IHC. METHODS: We evaluated STRAT4/IHC ESR1/estrogen receptor (ER), ERBB2/human epidermal growth factor receptor 2 (HER2) concordance rates of 150 breast cancer tissues processed in Rwanda, with undocumented cold ischemic and fixation time. RESULTS: Assay fail/indeterminate rate was 2.6% for ESR1 and ERBB2. STRAT4 agreement with ER IHC was 92.5% to 93.3% and 97.8% for HER2, for standard (1x) and concentrated (4x) reagent-conserving protocols, respectively. Eleven of 12 discordant ER/ESR1 cases were ESR1- negative/IHC-positive. These had low expression of ER by IHC in mostly very small tumor areas tested (7/12; <25 mm2). In two of three discordant HER2 cases, the STRAT4-ERBB2 result correlated with the subsequent fluorescence in situ hybridization (FISH) result. STRAT4-ERBB2 results in 9 of 10 HER2-IHC equivocal cases were concordant with FISH. CONCLUSIONS: The STRAT4 assay is an alternative for providing quality-controlled breast cancer biomarker data in laboratories unable to provide quality and/or cost-efficient IHC services.


Assuntos
Biomarcadores Tumorais/análise , Neoplasias da Mama/diagnóstico , Reação em Cadeia da Polimerase Multiplex/métodos , RNA Mensageiro/análise , Países em Desenvolvimento , Feminino , Humanos , Ruanda
3.
JCO Glob Oncol ; 7: 153-161, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33493021

RESUMO

PURPOSE: At the 12th meeting of AORTIC (African Organization for Research and Training in Cancer) in Maputo, Mozambique, held between November 5 and November 8, 2019, a special workshop was organized to focus on the need for collaboration and coordination between governments and health systems in Africa with academic, industry, association, and other nongovernmental organizations to effect sustainable positive change for the care of patients with cancer. METHODS: Representatives from seven different projects in Africa presented implementation science and demonstration projects of their to date efforts in cancer system improvement including patient access, South-South partnerships, in-country specialized training, palliative care consortium, treatment outcomes, and focused pathology and diagnostic capacity building. Key partners of the various projects served as moderators and commentators during the session. RESULTS: From across all the presentations, lessons learned and exemplary evidence of the value of partnerships were gathered and summarized. CONCLUSION: The concluding synthesis of the presentations determined that with the broad needs across cancer requiring in-depth expertise at each point on a patient's journey, no single organization can effect change alone. Multipartner collaborations not only should be the norm but should also be coordinated so that efforts are not duplicated and maximum patient access to cancer diagnosis and care is achieved.


Assuntos
Fortalecimento Institucional , Organizações , África , Humanos , Moçambique
4.
J Glob Oncol ; 4: 1-6, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30241136

RESUMO

PURPOSE: Minimal turnaround time for pathology results is crucial for highest-quality patient care in all settings, especially in low- and middle-income countries, where rural populations may have limited access to health care. METHODS: We retrospectively determined the turnaround times (TATs) for anatomic pathology specimens, comparing three different modes of operation that occurred throughout the development and implementation of our pathology laboratory at the Butaro Cancer Center of Excellence in Rwanda. Before opening this laboratory, TAT was measured in months because of inconsistent laboratory operations and a paucity of in-country pathologists. RESULTS: We analyzed 2,514 individual patient samples across the three modes of study. Diagnostic mode 1 (samples sent out of the country for analysis) had the highest median TAT, with an overall time of 30 days (interquartile range [IQR], 22 to 43 days). For diagnostic mode 2 (static image telepathology), the median TAT was 14 days (IQR, 7 to 27 days), and for diagnostic mode 3 (onsite expert diagnosis), it was 5 days (IQR, 2 to 9 days). CONCLUSION: Our results demonstrate that telepathology is a significant improvement over external expert review and can greatly assist sites in improving their TATs until pathologists are on site.


Assuntos
Patologia/métodos , Fortalecimento Institucional , Humanos , Estudos Retrospectivos , Ruanda
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