1.Review of Acute Traumatic Closed Mallet Finger Injuries in Adults.
Santiago SALAZAR BOTERO ; Juan Jose HIDALGO DIAZ ; Anissa BENAÏDA ; Sylvie COLLON ; Sybille FACCA ; Philippe André LIVERNEAUX
Archives of Plastic Surgery 2016;43(2):134-144
In adults, mallet finger is a traumatic zone I lesion of the extensor tendon with either tendon rupture or bony avulsion at the base of the distal phalanx. High-energy mechanisms of injury generally occur in young men, whereas lower energy mechanisms are observed in elderly women. The mechanism of injury is an axial load applied to a straight digit tip, which is then followed by passive extreme distal interphalangeal joint (DIPJ) hyperextension or hyperflexion. Mallet finger is diagnosed clinically, but an X-ray should always be performed. Tubiana's classification takes into account the size of the bony articular fragment and DIPJ subluxation. We propose to stage subluxated fractures as stage III if the subluxation is reducible with a splint and as stage IV if not. Left untreated, mallet finger becomes chronic and leads to a swan-neck deformity and DIPJ osteoarthritis. The goal of treatment is to restore active DIPJ extension. The results of a six- to eight-week conservative course of treatment with a DIPJ splint in slight hyperextension for tendon lesions or straight for bony avulsions depends on patient compliance. Surgical treatments vary in terms of the approach, the reduction technique, and the means of fixation. The risks involved are stiffness, septic arthritis, and osteoarthritis. Given the lack of consensus regarding indications for treatment, we propose to treat all cases of mallet finger with a dorsal glued splint except for stage IV mallet finger, which we treat with extra-articular pinning.
Adult*
;
Aged
;
Arthritis, Infectious
;
Classification
;
Congenital Abnormalities
;
Consensus
;
Female
;
Finger Injuries*
;
Fingers*
;
Humans
;
Joints
;
Male
;
Osteoarthritis
;
Patient Compliance
;
Rupture
;
Splints
;
Tendons
2.Assessing 18F‑FDG PET/CT Uptake and its Correlation with Molecular Biomarkers in Penile Cancer
André SALAZAR ; Eduardo Paulino JÚNIOR ; Diego F. SÁNCHEZ ; Aízis Tatiane Santos GONÇALVES ; Renata Toscano SIMÕES ; Raul SILVA‑FILHO ; João V. S. RAIMUNDO ; Yuri V. C. SOARES ; Matheus L. MARINHO ; Antonio L. CUBILLA ; Marcelo MAMEDE
Nuclear Medicine and Molecular Imaging 2025;59(2):135-146
Background:
Penile Cancer is a rare and aggressive disease. Related to complex metabolic processes.
Objective:
This study investigates the effectiveness of 18F-FDG PET/CT as a noninvasive method in evaluating penile cancer patients, focusing on the correlation between tissue expression of key tumor markers involved in glucose metabolism and proliferation, and the uptake of 18F-FDG.
Methods:
Fifty-one patients were selected and underwent 18F-FDG PET/CT-based staging. Semiquantitative analysis wasperformed using the maximum standardized uptake value (SUVmax ) and volumetric SUV (SUV2SD ). Tissue expressionanalysis of GLUT-1, hexokinase-II, Ki67, p16, and p53 was performed by tissue microarray. PCR evaluated HPV DNA.
Results:
Warty SCC showed the highest SUV value and significant differences in SUVmax (p=0.015). Higher SUVmax and SUV2SD values were observed in grade 3 tumors. In typical invasive SCC, grade 3, HPV+, p16-negative, p53-negative,GLUT-1 i-3, and HK-II i-3 tumors showed a higher mean SUV. The Ki-67 value significantly differed for grade 3 tumors (p=0.001) and HK-II i-1 tumors (p=0.036). Ki-67 positivity was also higher in HPV-, p16 i-2, p53 i-3, and GLUT-1 i-3 tumors; none of the differences were statistically significant.
Conclusions
The study highlights correlations between the uptake of 18F-FDG and the expression of markers associated with glycolytic metabolism in penile cancer. It suggests a potential trend where increased expression of glucose transport markers is linked to higher histological grades and Ki-67 expression. There were no significant differences regarding HPV positivity, demonstrating the complexity of penile cancer molecular biology and need more studies with a higher number of patients.
3.Assessing 18F‑FDG PET/CT Uptake and its Correlation with Molecular Biomarkers in Penile Cancer
André SALAZAR ; Eduardo Paulino JÚNIOR ; Diego F. SÁNCHEZ ; Aízis Tatiane Santos GONÇALVES ; Renata Toscano SIMÕES ; Raul SILVA‑FILHO ; João V. S. RAIMUNDO ; Yuri V. C. SOARES ; Matheus L. MARINHO ; Antonio L. CUBILLA ; Marcelo MAMEDE
Nuclear Medicine and Molecular Imaging 2025;59(2):135-146
Background:
Penile Cancer is a rare and aggressive disease. Related to complex metabolic processes.
Objective:
This study investigates the effectiveness of 18F-FDG PET/CT as a noninvasive method in evaluating penile cancer patients, focusing on the correlation between tissue expression of key tumor markers involved in glucose metabolism and proliferation, and the uptake of 18F-FDG.
Methods:
Fifty-one patients were selected and underwent 18F-FDG PET/CT-based staging. Semiquantitative analysis wasperformed using the maximum standardized uptake value (SUVmax ) and volumetric SUV (SUV2SD ). Tissue expressionanalysis of GLUT-1, hexokinase-II, Ki67, p16, and p53 was performed by tissue microarray. PCR evaluated HPV DNA.
Results:
Warty SCC showed the highest SUV value and significant differences in SUVmax (p=0.015). Higher SUVmax and SUV2SD values were observed in grade 3 tumors. In typical invasive SCC, grade 3, HPV+, p16-negative, p53-negative,GLUT-1 i-3, and HK-II i-3 tumors showed a higher mean SUV. The Ki-67 value significantly differed for grade 3 tumors (p=0.001) and HK-II i-1 tumors (p=0.036). Ki-67 positivity was also higher in HPV-, p16 i-2, p53 i-3, and GLUT-1 i-3 tumors; none of the differences were statistically significant.
Conclusions
The study highlights correlations between the uptake of 18F-FDG and the expression of markers associated with glycolytic metabolism in penile cancer. It suggests a potential trend where increased expression of glucose transport markers is linked to higher histological grades and Ki-67 expression. There were no significant differences regarding HPV positivity, demonstrating the complexity of penile cancer molecular biology and need more studies with a higher number of patients.
4.Assessing 18F‑FDG PET/CT Uptake and its Correlation with Molecular Biomarkers in Penile Cancer
André SALAZAR ; Eduardo Paulino JÚNIOR ; Diego F. SÁNCHEZ ; Aízis Tatiane Santos GONÇALVES ; Renata Toscano SIMÕES ; Raul SILVA‑FILHO ; João V. S. RAIMUNDO ; Yuri V. C. SOARES ; Matheus L. MARINHO ; Antonio L. CUBILLA ; Marcelo MAMEDE
Nuclear Medicine and Molecular Imaging 2025;59(2):135-146
Background:
Penile Cancer is a rare and aggressive disease. Related to complex metabolic processes.
Objective:
This study investigates the effectiveness of 18F-FDG PET/CT as a noninvasive method in evaluating penile cancer patients, focusing on the correlation between tissue expression of key tumor markers involved in glucose metabolism and proliferation, and the uptake of 18F-FDG.
Methods:
Fifty-one patients were selected and underwent 18F-FDG PET/CT-based staging. Semiquantitative analysis wasperformed using the maximum standardized uptake value (SUVmax ) and volumetric SUV (SUV2SD ). Tissue expressionanalysis of GLUT-1, hexokinase-II, Ki67, p16, and p53 was performed by tissue microarray. PCR evaluated HPV DNA.
Results:
Warty SCC showed the highest SUV value and significant differences in SUVmax (p=0.015). Higher SUVmax and SUV2SD values were observed in grade 3 tumors. In typical invasive SCC, grade 3, HPV+, p16-negative, p53-negative,GLUT-1 i-3, and HK-II i-3 tumors showed a higher mean SUV. The Ki-67 value significantly differed for grade 3 tumors (p=0.001) and HK-II i-1 tumors (p=0.036). Ki-67 positivity was also higher in HPV-, p16 i-2, p53 i-3, and GLUT-1 i-3 tumors; none of the differences were statistically significant.
Conclusions
The study highlights correlations between the uptake of 18F-FDG and the expression of markers associated with glycolytic metabolism in penile cancer. It suggests a potential trend where increased expression of glucose transport markers is linked to higher histological grades and Ki-67 expression. There were no significant differences regarding HPV positivity, demonstrating the complexity of penile cancer molecular biology and need more studies with a higher number of patients.
5.Assessing 18F‑FDG PET/CT Uptake and its Correlation with Molecular Biomarkers in Penile Cancer
André SALAZAR ; Eduardo Paulino JÚNIOR ; Diego F. SÁNCHEZ ; Aízis Tatiane Santos GONÇALVES ; Renata Toscano SIMÕES ; Raul SILVA‑FILHO ; João V. S. RAIMUNDO ; Yuri V. C. SOARES ; Matheus L. MARINHO ; Antonio L. CUBILLA ; Marcelo MAMEDE
Nuclear Medicine and Molecular Imaging 2025;59(2):135-146
Background:
Penile Cancer is a rare and aggressive disease. Related to complex metabolic processes.
Objective:
This study investigates the effectiveness of 18F-FDG PET/CT as a noninvasive method in evaluating penile cancer patients, focusing on the correlation between tissue expression of key tumor markers involved in glucose metabolism and proliferation, and the uptake of 18F-FDG.
Methods:
Fifty-one patients were selected and underwent 18F-FDG PET/CT-based staging. Semiquantitative analysis wasperformed using the maximum standardized uptake value (SUVmax ) and volumetric SUV (SUV2SD ). Tissue expressionanalysis of GLUT-1, hexokinase-II, Ki67, p16, and p53 was performed by tissue microarray. PCR evaluated HPV DNA.
Results:
Warty SCC showed the highest SUV value and significant differences in SUVmax (p=0.015). Higher SUVmax and SUV2SD values were observed in grade 3 tumors. In typical invasive SCC, grade 3, HPV+, p16-negative, p53-negative,GLUT-1 i-3, and HK-II i-3 tumors showed a higher mean SUV. The Ki-67 value significantly differed for grade 3 tumors (p=0.001) and HK-II i-1 tumors (p=0.036). Ki-67 positivity was also higher in HPV-, p16 i-2, p53 i-3, and GLUT-1 i-3 tumors; none of the differences were statistically significant.
Conclusions
The study highlights correlations between the uptake of 18F-FDG and the expression of markers associated with glycolytic metabolism in penile cancer. It suggests a potential trend where increased expression of glucose transport markers is linked to higher histological grades and Ki-67 expression. There were no significant differences regarding HPV positivity, demonstrating the complexity of penile cancer molecular biology and need more studies with a higher number of patients.
6.Assessing 18F‑FDG PET/CT Uptake and its Correlation with Molecular Biomarkers in Penile Cancer
André SALAZAR ; Eduardo Paulino JÚNIOR ; Diego F. SÁNCHEZ ; Aízis Tatiane Santos GONÇALVES ; Renata Toscano SIMÕES ; Raul SILVA‑FILHO ; João V. S. RAIMUNDO ; Yuri V. C. SOARES ; Matheus L. MARINHO ; Antonio L. CUBILLA ; Marcelo MAMEDE
Nuclear Medicine and Molecular Imaging 2025;59(2):135-146
Background:
Penile Cancer is a rare and aggressive disease. Related to complex metabolic processes.
Objective:
This study investigates the effectiveness of 18F-FDG PET/CT as a noninvasive method in evaluating penile cancer patients, focusing on the correlation between tissue expression of key tumor markers involved in glucose metabolism and proliferation, and the uptake of 18F-FDG.
Methods:
Fifty-one patients were selected and underwent 18F-FDG PET/CT-based staging. Semiquantitative analysis wasperformed using the maximum standardized uptake value (SUVmax ) and volumetric SUV (SUV2SD ). Tissue expressionanalysis of GLUT-1, hexokinase-II, Ki67, p16, and p53 was performed by tissue microarray. PCR evaluated HPV DNA.
Results:
Warty SCC showed the highest SUV value and significant differences in SUVmax (p=0.015). Higher SUVmax and SUV2SD values were observed in grade 3 tumors. In typical invasive SCC, grade 3, HPV+, p16-negative, p53-negative,GLUT-1 i-3, and HK-II i-3 tumors showed a higher mean SUV. The Ki-67 value significantly differed for grade 3 tumors (p=0.001) and HK-II i-1 tumors (p=0.036). Ki-67 positivity was also higher in HPV-, p16 i-2, p53 i-3, and GLUT-1 i-3 tumors; none of the differences were statistically significant.
Conclusions
The study highlights correlations between the uptake of 18F-FDG and the expression of markers associated with glycolytic metabolism in penile cancer. It suggests a potential trend where increased expression of glucose transport markers is linked to higher histological grades and Ki-67 expression. There were no significant differences regarding HPV positivity, demonstrating the complexity of penile cancer molecular biology and need more studies with a higher number of patients.
7.Glycoproteogenomics: Setting the Course for Next-generation Cancer Neoantigen Discovery for Cancer Vaccines.
José Alexandre FERREIRA ; Marta RELVAS-SANTOS ; Andreia PEIXOTO ; André M N SILVA ; Lúcio LARA SANTOS
Genomics, Proteomics & Bioinformatics 2021;19(1):25-43
Molecular-assisted precision oncology gained tremendous ground with high-throughput next-generation sequencing (NGS), supported by robust bioinformatics. The quest for genomics-based cancer medicine set the foundations for improved patient stratification, while unveiling a wide array of neoantigens for immunotherapy. Upfront pre-clinical and clinical studies have successfully used tumor-specific peptides in vaccines with minimal off-target effects. However, the low mutational burden presented by many lesions challenges the generalization of these solutions, requiring the diversification of neoantigen sources. Oncoproteogenomics utilizing customized databases for protein annotation by mass spectrometry (MS) is a powerful tool toward this end. Expanding the concept toward exploring proteoforms originated from post-translational modifications (PTMs) will be decisive to improve molecular subtyping and provide potentially targetable functional nodes with increased cancer specificity. Walking through the path of systems biology, we highlight that alterations in protein glycosylation at the cell surface not only have functional impact on cancer progression and dissemination but also originate unique molecular fingerprints for targeted therapeutics. Moreover, we discuss the outstanding challenges required to accommodate glycoproteomics in oncoproteogenomics platforms. We envisage that such rationale may flag a rather neglected research field, generating novel paradigms for precision oncology and immunotherapy.