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The Significance of TGF-β Expression in Predicting Lymphovascular Invasion and Lymph Node Metastasis in Colorectal Cancer Aini, Julpa Nurul; Aswiyanti Asri; Noza Hilbertina; Tofrizal; Avit Suchitra; Husna Yetti
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 9 No. 1 (2025): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v9i1.1182

Background: Colorectal cancer (CRC) is a major health burden globally. The prognosis of CRC is strongly influenced by the presence of lymphovascular invasion (LVI) and lymph node (LN) metastasis. Transforming growth factor-beta (TGF-β) is a cytokine with a complex role in CRC progression. This study aimed to evaluate the significance of TGF-β expression in predicting LVI and LN metastasis in CRC. Methods: This cross-sectional study involved 50 patients diagnosed with CRC. The expression of TGF-β was assessed using immunohistochemical staining and the Allred scoring system. The relationship between TGF-β expression and the presence of LVI and LN metastasis was analyzed using the Chi-square test. Results: High TGF-β expression was significantly associated with both LVI (p = 0.011) and LN metastasis (p = 0.012) in CRC. Patients with high TGF-β expression had a higher risk of LVI and LN metastasis compared to those with low TGF-β expression. Conclusion: TGF-β expression is a significant predictor of LVI and LN metastasis in CRC. This finding has potential implications for risk stratification and treatment decisions in CRC patients.

Intraoperative Frozen Section Diagnosis of Adenoid Cystic Carcinoma of the Minor Salivary Gland: A Case Report Mustika Sari; Noza Hilbertina
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 9 No. 3 (2025): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v9i3.1210

Background: Adenoid cystic carcinoma (ACC) is a rare malignant tumor of the salivary glands known for its slow growth, invasive behavior, and propensity for perineural invasion. The diagnosis of ACC can be challenging, especially during intraoperative frozen section consultation. This case report highlights the crucial role of frozen section diagnosis in guiding surgical management and ensuring tumor-free margins, which are critical for patient prognosis. Case presentation: A 44-year-old male presented with a slow-growing, occasionally painful nodule on his upper lip, without facial numbness or other systemic symptoms. A frozen section examination was performed intraoperatively to assess the lesion and determine the margin status. The frozen section revealed malignancy, characterized by tumor cell proliferation in tubular, cribriform, and solid patterns, all hallmarks of ACC, along with perineural invasion. A wide excision was performed, and subsequent frozen sections of the surgical margins confirmed they were free of tumor. The diagnosis of ACC was confirmed on histopathological examination of the paraffin block. Conclusion: This case underscores the importance of frozen section diagnosis in the management of ACC of the minor salivary glands. The accurate assessment of the lesion and margin status during surgery allows for appropriate surgical decision-making, ensuring complete tumor removal and minimizing the risk of recurrence.

Differential Roles of CD117 and Ki67 in Gastrointestinal Stromal Tumors: Diagnostic Utility Versus Prognostic Power Fitri Nur Handriyani; Noza Hilbertina; Henny Mulyani; Loli Devianti; Avit Suchitra; Husna Yetti
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 9 No. 7 (2025): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v9i7.1337

Background: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the digestive tract, primarily driven by mutations in KIT or PDGFRA genes. CD117 (c-KIT) expression is a key diagnostic marker, while the Ki67 labeling index reflects cellular proliferation. Risk stratification, often using modified NIH criteria based on tumor size, mitotic rate, and location, guides prognosis and treatment. This study investigated the distinct roles of CD117 and Ki67 expression in relation to risk stratification in GIST patients. Methods: This cross-sectional analytical study examined 27 GIST cases diagnosed between January 2021 and December 2024 from three Indonesian hospitals. Formalin-fixed paraffin-embedded tissues were analyzed using immunohistochemistry for CD117 (clone YR145) and Ki67 (clone K2). CD117 positivity was defined as ≥5% tumor cell staining, and high Ki67 expression as >10% nuclear staining. Risk stratification utilized the modified NIH criteria. The Chi-square test assessed correlations (p<0.05 significance). Results: The cohort predominantly comprised patients >50 years (66.7%), males (59.3%), with gastric tumors (51.9%), large tumor size (>5cm in 96.3%), spindle cell morphology (77.8%), and high mitotic rates (74.1%). Most cases (85.2%) were classified as high-risk. CD117 was positive in 81.5% (22/27) of cases but showed no significant correlation with risk stratification (p=0.561). High Ki67 expression was found in 74.1% (20/27) of cases and demonstrated a significant positive correlation with high-risk stratification (p=0.002). The combination of CD117 and Ki67 status also showed a significant association with risk stratification (p=0.001). Conclusion: While CD117 expression remains a cornerstone for GIST diagnosis and targeted therapy selection, it did not correlate significantly with risk stratification in this cohort. Conversely, a high Ki67 labeling index was significantly associated with high-risk GIST, underscoring its potential as a valuable prognostic marker alongside established risk stratification parameters.

Investigating the Landscape of Programmed Death-Ligand 1 (PD-L1) in Thymic Tumors: Implications for Histopathological Classification and Staging Rio Hendra; Noza Hilbertina; Henny Mulyani; Tofrizal; Afriani; Husna Yetti
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 9 No. 7 (2025): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v9i7.1338

Background: Thymic epithelial tumors (TETs) are uncommon malignancies originating in the mediastinum, characterized by considerable histopathological diversity and variable clinical trajectories. Programmed Death-Ligand 1 (PD-L1), an immune checkpoint protein, is implicated in mechanisms of tumor immune evasion. This study aimed to investigate the correlation between PD-L1 immunoexpression and distinct histopathological types, as well as the Masaoka-Koga stage, in TETs. Methods: This cross-sectional investigation analyzed 29 archival cases of TETs diagnosed between January 2019 and December 2024 at the Anatomical Pathology Laboratory of Dr. M. Djamil General Hospital Padang. Samples were procured via consecutive sampling from formalin-fixed paraffin-embedded (FFPE) tumor tissues. Histopathological classification was reassessed according to the WHO 2021 criteria. PD-L1 expression was evaluated immunohistochemically and quantified using the Tumor Proportion Score (TPS). Masaoka-Koga staging was determined from clinical records. Statistical analysis of correlations was performed using the Chi-square test. Results: PD-L1 immunoexpression was detected in the preponderance of cases. Low positive PD-L1 expression (TPS 1-49%) was observed in 82.8% of TETs, while high positive expression (TPS ≥50%) was noted in 10.3%. Thymic carcinoma constituted the most prevalent histopathological category (51.7%), and the majority of patients (91.7%) presented at an advanced Masaoka-Koga stage. Statistical analysis did not demonstrate a significant correlation between PD-L1 expression levels and histopathological type (p=0.195). Furthermore, no significant association was identified between PD-L1 expression and Masaoka-Koga stage (p=0.800). Conclusion: This study indicated that while PD-L1 is frequently expressed in TETs within this cohort, its expression level did not exhibit a significant correlation with specific histopathological subtypes or the Masaoka-Koga clinical stage. Further investigations incorporating larger sample sizes are warranted to delineate the precise role of PD-L1 within the complex biological spectrum of thymic neoplasms.

Differential Roles of CD117 and Ki67 in Gastrointestinal Stromal Tumors: Diagnostic Utility Versus Prognostic Power Fitri Nur Handriyani; Noza Hilbertina; Henny Mulyani; Loli Devianti; Avit Suchitra; Husna Yetti
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 9 No. 7 (2025): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v9i7.1337

Background: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the digestive tract, primarily driven by mutations in KIT or PDGFRA genes. CD117 (c-KIT) expression is a key diagnostic marker, while the Ki67 labeling index reflects cellular proliferation. Risk stratification, often using modified NIH criteria based on tumor size, mitotic rate, and location, guides prognosis and treatment. This study investigated the distinct roles of CD117 and Ki67 expression in relation to risk stratification in GIST patients. Methods: This cross-sectional analytical study examined 27 GIST cases diagnosed between January 2021 and December 2024 from three Indonesian hospitals. Formalin-fixed paraffin-embedded tissues were analyzed using immunohistochemistry for CD117 (clone YR145) and Ki67 (clone K2). CD117 positivity was defined as ≥5% tumor cell staining, and high Ki67 expression as >10% nuclear staining. Risk stratification utilized the modified NIH criteria. The Chi-square test assessed correlations (p<0.05 significance). Results: The cohort predominantly comprised patients >50 years (66.7%), males (59.3%), with gastric tumors (51.9%), large tumor size (>5cm in 96.3%), spindle cell morphology (77.8%), and high mitotic rates (74.1%). Most cases (85.2%) were classified as high-risk. CD117 was positive in 81.5% (22/27) of cases but showed no significant correlation with risk stratification (p=0.561). High Ki67 expression was found in 74.1% (20/27) of cases and demonstrated a significant positive correlation with high-risk stratification (p=0.002). The combination of CD117 and Ki67 status also showed a significant association with risk stratification (p=0.001). Conclusion: While CD117 expression remains a cornerstone for GIST diagnosis and targeted therapy selection, it did not correlate significantly with risk stratification in this cohort. Conversely, a high Ki67 labeling index was significantly associated with high-risk GIST, underscoring its potential as a valuable prognostic marker alongside established risk stratification parameters.

Investigating the Landscape of Programmed Death-Ligand 1 (PD-L1) in Thymic Tumors: Implications for Histopathological Classification and Staging Rio Hendra; Noza Hilbertina; Henny Mulyani; Tofrizal; Afriani; Husna Yetti
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 9 No. 7 (2025): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v9i7.1338

Background: Thymic epithelial tumors (TETs) are uncommon malignancies originating in the mediastinum, characterized by considerable histopathological diversity and variable clinical trajectories. Programmed Death-Ligand 1 (PD-L1), an immune checkpoint protein, is implicated in mechanisms of tumor immune evasion. This study aimed to investigate the correlation between PD-L1 immunoexpression and distinct histopathological types, as well as the Masaoka-Koga stage, in TETs. Methods: This cross-sectional investigation analyzed 29 archival cases of TETs diagnosed between January 2019 and December 2024 at the Anatomical Pathology Laboratory of Dr. M. Djamil General Hospital Padang. Samples were procured via consecutive sampling from formalin-fixed paraffin-embedded (FFPE) tumor tissues. Histopathological classification was reassessed according to the WHO 2021 criteria. PD-L1 expression was evaluated immunohistochemically and quantified using the Tumor Proportion Score (TPS). Masaoka-Koga staging was determined from clinical records. Statistical analysis of correlations was performed using the Chi-square test. Results: PD-L1 immunoexpression was detected in the preponderance of cases. Low positive PD-L1 expression (TPS 1-49%) was observed in 82.8% of TETs, while high positive expression (TPS ≥50%) was noted in 10.3%. Thymic carcinoma constituted the most prevalent histopathological category (51.7%), and the majority of patients (91.7%) presented at an advanced Masaoka-Koga stage. Statistical analysis did not demonstrate a significant correlation between PD-L1 expression levels and histopathological type (p=0.195). Furthermore, no significant association was identified between PD-L1 expression and Masaoka-Koga stage (p=0.800). Conclusion: This study indicated that while PD-L1 is frequently expressed in TETs within this cohort, its expression level did not exhibit a significant correlation with specific histopathological subtypes or the Masaoka-Koga clinical stage. Further investigations incorporating larger sample sizes are warranted to delineate the precise role of PD-L1 within the complex biological spectrum of thymic neoplasms.

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