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result(s) for
"Malango, Atuganile E"
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Photomicrograph-Based Neuropathology Consultation in Tanzania: The Utility of Static-Image Teleneuropathology in Low- and Middle-Income Countries
by
Ormond, D. Ryan
,
Malango, Atuganile E
,
Hosokawa, Patrick W
in
Biopsy
,
Clinical pathology
,
Developing countries
2020
Objectives: Since neuropathologic diagnosis in the developing world is hampered by limitations in technical infrastructure, trained laboratory personnel, and subspecialty-trained pathologists, the use of telepathology for diagnostic support, second-opinion consultations, and ongoing training holds promise as a means of addressing these challenges. This study aims to assess the utility of static teleneuropathology in improving neuropathologic diagnoses in low- and middle-income countries. Methods: Consecutive neurosurgical biopsy and resection specimens obtained at Muhimbili National Hospital in Tanzania between July 1, 2018, and June 30, 2019, were selected for retrospective, blinded static-image neuropathologic review followed by on-site review by an expert neuropathologist. Results: A total of 75 neuropathologic cases were reviewed. The agreement of static images and on-site glass diagnosis was 71% with strict criteria and 88% with less stringent criteria. This represents an overall improvement in diagnostic accuracy from 36%o by general pathologists to 71% by a neuropathologist using static telepathology (or from 76%o to 88% with less stringent criteria). Conclusions: Telepathology offers a promising means of providing diagnostic support, second-opinion consultations, and ongoing training to pathologists practicing in resource-limited countries. Moreover, static digital teleneuropathology is an uncomplicated, cost-effective, and reliable way to achieve these goals. Key Words: Static image; Telepathology; Neuropathology; Teleneuropathology; LMICs; Resource-limited settings; Tanzania
Journal Article
Photomicrograph-Based Neuropathology Consultation in Tanzania
by
Ormond, D Ryan
,
Malango, Atuganile E
,
Hosokawa, Patrick W
in
Humans
,
Neuropathology - methods
,
Retrospective Studies
2020
Abstract
Objectives
Since neuropathologic diagnosis in the developing world is hampered by limitations in technical infrastructure, trained laboratory personnel, and subspecialty-trained pathologists, the use of telepathology for diagnostic support, second-opinion consultations, and ongoing training holds promise as a means of addressing these challenges. This study aims to assess the utility of static teleneuropathology in improving neuropathologic diagnoses in low- and middle-income countries.
Methods
Consecutive neurosurgical biopsy and resection specimens obtained at Muhimbili National Hospital in Tanzania between July 1, 2018, and June 30, 2019, were selected for retrospective, blinded static-image neuropathologic review followed by on-site review by an expert neuropathologist.
Results
A total of 75 neuropathologic cases were reviewed. The agreement of static images and on-site glass diagnosis was 71% with strict criteria and 88% with less stringent criteria. This represents an overall improvement in diagnostic accuracy from 36% by general pathologists to 71% by a neuropathologist using static telepathology (or from 76% to 88% with less stringent criteria).
Conclusions
Telepathology offers a promising means of providing diagnostic support, second-opinion consultations, and ongoing training to pathologists practicing in resource-limited countries. Moreover, static digital teleneuropathology is an uncomplicated, cost-effective, and reliable way to achieve these goals.
Journal Article
High-risk human papillomavirus genotyping in cervical cancers in Tanzania
by
Kubwimana, Gallican
,
Anastos, Kathryn
,
Matiku, Subira
in
Age composition
,
Biomedical and Life Sciences
,
Biomedicine
2024
Background
High-risk human papillomavirus (hrHPV) infection causes almost all cervical cancer. Women living with human immunodeficiency virus (Women living with HIV: WLWHIV) are at a six-fold increased risk of developing cervical cancer. This study assessed hrHPV types in cervical cancer by HIV status and histologic subtypes at Muhimbili National Hospital (MNH) in Tanzania.
Methods
This cross-sectional study used formalin-fixed paraffin-embedded (FFPE) archived tissue blocks of cervical carcinomas diagnosed in the Department of Anatomical Pathology at MNH from January to December 2020. Tissue sections were tested for 15 HPV genotypes (16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, and 68) using the Ampfire assay. The distribution of HPV genotypes was assessed and compared by HIV status and histologic subtypes.
Results
The mean age ± standard deviation (
N
= 227, with valid HPV results) was 55 ± 12.9 years, 28.6% (
n
= 65) were WLWHIV, and squamous cell carcinoma (SCC) was the most common histologic subtype (91.2%). Most cervical carcinomas (81.1%,
n
= 184) tested positive for hrHPV with HPV16 (44.1%), HPV18 (15.9%), HPV35 (8.4%) and HPV45 (5.7%) being the most common HPV types. hrHPV was higher among older women with 64.5%, 85.1% and 81.3% among 30–40, 41–60 and ≥ 61-year-old women, respectively (
p
= 0.033). HPV16 was more commonly detected in SCC (47.8%) than in adenocarcinomas (5%) (
p
< 0.0001). There was no difference in hrHPV positivity by HIV status.
Conclusions
We found a high proportion of hrHPV among cervical carcinomas diagnosed in Tanzania. Rolling out HPV vaccines that target more hrHPV types than HPV16/18, especially HPV35 and HPV45, could optimize protection against cervical cancer in Tanzania.
Journal Article