DR. STEVEN KNEZEVICH, M.D.

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Researchers have developed a new version of a reporting system called MPATH-Dx for assessing skin lesions, simplifying it from five categories to four. This change aims to make it easier for doctors to agree on diagnoses and improve patient care. The revised system specifically defines criteria for classifying less serious lesions and even identifies certain low-risk melanomas that might not need aggressive treatment. Who this helps: This helps doctors, patients with skin lesions, and those monitoring melanoma risks.

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Researchers studied the increasing number of melanoma diagnoses and found that many cases labeled as melanoma might not actually be harmful, leading to unnecessary panic and treatment. They discovered that certain low-risk melanomas, specifically those classified as T1a, had a 100% survival rate and often exhibited characteristics that previously would have classified them simply as benign moles. This matters because changing the way we classify these conditions can reduce the stress and stigma associated with a cancer diagnosis for many patients who are not actually at risk. Who this helps: This helps patients who receive a melanoma diagnosis but are at very low risk, as well as doctors aiming to provide clearer diagnoses.

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This study focused on identifying melanocytes, which are important for diagnosing skin cancer, specifically melanoma. The researchers developed a new method called VSGD-Net that works with standard H&E stained images to virtually enhance the identification of melanocytes, eliminating the need for more complex and costly staining techniques. Their approach significantly improved detection accuracy compared to existing methods, making it a valuable tool for pathologists. Who this helps: This benefits pathologists and patients by making melanoma diagnosis easier and more reliable.

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This research studied how to improve the process of analyzing skin biopsy images, which is crucial for diagnosing melanoma, a type of skin cancer that has been rising in prevalence. The researchers developed a method that uses fewer detailed labels to train a computer program to identify important features in these images effectively. Their approach showed good results in accurately segmenting the images, which can streamline the diagnosis process and potentially lead to better patient outcomes. Who this helps: This benefits doctors and pathologists who diagnose melanoma and other skin conditions.

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This study looked at how using machine learning to analyze skin biopsy images can help doctors better diagnose invasive melanoma, a serious skin cancer. By focusing on specific parts of the tissue images, researchers found that the accuracy of diagnoses improved by 6%. This matters because better diagnoses could lead to earlier and more effective treatment for patients with melanoma. Who this helps: Patients with skin cancer.

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This study looked at how well different computer algorithms, known as convolutional neural networks (CNNs), can identify mitosis (the process of cell division) in biopsy images for skin and breast cancer. The researchers found that the ESPNet and DenseNet models performed exceptionally well, with sensitivity rates of 97.6% and 96.8% for melanoma images, and 86.6% and 91.6% for breast cancer images, respectively. This is important because accurate detection of mitosis can help doctors make better diagnoses and treatment decisions for cancer patients. Who this helps: Patients and doctors involved in cancer diagnosis and treatment.

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This study developed a new computer program called the Ductal Instance-Oriented Pipeline (DIOP) that helps classify images of breast tissue to assist in diagnosing cancer. The program identifies individual ducts within the tissue and gathers detailed information, achieving accuracy in classifying types of breast tissue similar to that of expert pathologists. DIOP runs quickly on standard computers, making it practical for use in medical settings. Who this helps: This benefits doctors and pathologists who analyze breast tissue for cancer diagnosis.

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This study focused on improving the diagnosis of skin lesions related to melanoma, which is often difficult and sometimes inconsistent among doctors. Researchers developed a new computer program that analyzes digital images of skin biopsies and found that it performed better than five other leading methods, matching the accuracy of 187 experienced pathologists. This improvement could lead to more consistent and accurate diagnoses for patients suspected of having melanoma. Who this helps: Patients at risk for melanoma and their doctors.

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This study looked at how getting second opinions from experts affects the accuracy of diagnosing skin lesions, specifically those related to melanoma. Out of nearly 9,000 cases examined, almost 43% of pathologists sought second opinions, especially for tricky cases. The findings showed that misclassification rates were lower (about 36.7%) when lesions were reviewed by dermatopathologists trained in these specific conditions, compared to higher misclassification rates (52.8%) among general pathologists without specialized training. Who this helps: This benefits patients and doctors by providing clearer diagnoses for skin lesions, especially those that may be cancerous.

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Researchers studied how different US pathologists assess important factors in melanoma staging, specifically Breslow thickness, mitotic rate, and ulceration in tumor samples. They found that while pathologists generally agreed on the depth of invasion (Breslow thickness), there was substantial disagreement regarding the presence of mitotic figures, which led to misclassification – 15.6% mistakenly identified weak tumors as more aggressive, and 32% failed to recognize tumors that needed a higher stage. This matters because accurate staging is crucial for determining the best treatment options for patients, and improved standardization in future guidelines should reduce these discrepancies. Who this helps: This helps patients with melanoma and their doctors by ensuring more accurate diagnoses and treatments.

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This study looked at how fears of being sued for malpractice influence the work of dermatopathologists who examine skin lesions. Out of 207 dermatopathologists surveyed, 33% had been involved in a malpractice lawsuit, and those who were older or less qualified were more likely to have been sued. Many dermatopathologists worry that these fears affect their decision-making, as 64% feel confident in their interpretations but still believe malpractice concerns lead them to order unnecessary tests. Who this helps: This research benefits dermatopathologists and the patients who rely on their assessments.

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This study looked at how U.S. pathologists in 10 states use new testing methods, specifically FISH and CGH, to diagnose melanoma, a type of skin cancer. Out of 207 surveyed pathologists, 38% reported using these tests, and those who did tended to be younger, have specialized training, and work at academic institutions. This is important because using advanced testing can improve melanoma diagnosis, allowing for better patient care. Who this helps: Patients with melanoma benefit from more accurate diagnoses.

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This study looked at how experienced skin doctors, called dermatopathologists, agree on diagnosing complex skin lesions, specifically melanocytic lesions, which can be benign or cancerous. They evaluated 240 cases and found that, while most of the time they reached agreement (95% of benign cases and 100% of the most serious cases), there were disagreements in diagnosing conditions with moderate and severe atypia. The reasons for these disagreements often involved different opinions on how serious the lesions were and what they observed in the samples. Who this helps: This helps doctors who diagnose skin conditions, improving accuracy in recognizing skin cancer.

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This study looked at how teledermatology (TD) could impact the diagnosis of melanoma among US Veterans in the Pacific Northwest. They found that the rate of melanoma was lower among Veterans using TD—15 cases per 100,000 compared to 57 cases per 100,000 for those who saw doctors in person. However, those using TD had more advanced cases of melanoma at the time of diagnosis, indicating that many Veterans were not taking advantage of the TD services available to them, leading to worse outcomes. Who this helps: This helps Veterans who need skin checks and treatment options for melanoma.

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This study looked at the role of a protein called Perp, which is important for cell connections in preventing skin cancer, specifically squamous cell carcinoma. The researchers found that when Perp is absent in mice, it leads to increased tumor formation and growth; they observed a significant tumor development in these mice when compared to those with Perp. This loss of Perp not only disrupts cell connections but also triggers inflammation, which further supports cancer development. Who this helps: This research benefits patients by improving our understanding of cancer progression and potential treatment strategies.

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This study looked at the health status of teenagers who have had the Fontan procedure, a surgery for congenital heart defects, and compared them to their siblings. Out of 68 participants, those with siblings reported significantly lower physical health scores, while both groups were similar in social and emotional well-being. This research highlights the important impact that having siblings can have on how Fontan patients perceive their physical health, indicating a need for tailored support for these adolescents. Who this helps: This helps patients and their families, as well as doctors working with adolescents post-surgery.

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This study looked at a specific type of aggressive liver tumor called undifferentiated embryonal sarcoma that can develop within a normally benign tumor in children, known as mesenchymal hamartoma of the liver. The researchers identified the DNA changes associated with this tumor, specifically the t(11;19) translocation, and found that it disrupts a gene related to cancer development, along with a new region linked to liver tumors. Understanding these genetic changes helps doctors better diagnose and treat patients with this rare cancer. Who this helps: This helps patients with liver tumors and their doctors.

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This study looked at high-grade B-cell lymphomas to see how often specific genetic changes, known as translocations, occurred together. Researchers found that in a group of 1350 cases, 55 had notable alterations, with 8 showing a complex gene rearrangement involving the MYC and BCL2 genes linked to cancer growth. Understanding these genetic patterns is crucial for better diagnosing and treating aggressive forms of leukemia and lymphoma. Who this helps: This helps patients with high-grade B-cell lymphomas and their doctors in making more informed treatment decisions.

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This study looked at how a substance called N-methyl-D-aspartate (NMDA) causes the release of nitric oxide in the brains of live animals. The researchers found that when they increased the dose of NMDA, the levels of nitric oxide in the cerebellum also increased, showing a clear connection between NMDA activity and nitric oxide release. This is important as it helps us understand how signaling in the brain works, which could lead to better treatments for conditions affecting brain function. Who this helps: This helps researchers and doctors working to develop therapies for neurological disorders.

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This study looks at a rare wrist condition known as carpal coalition, where certain bones in the wrist fuse together. The researchers reported a case involving a 33-year-old man who experienced symptoms from this fusion, making it clear that this specific combination of bone fusions has not been documented before. Understanding these unique cases is important for proper diagnosis and treatment options. Who this helps: This benefits patients with similar wrist conditions and their doctors.

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This study looked at a rare case of a 13-year-old girl who developed severe leg problems and kidney failure due to an infection called Streptococcal toxic shocklike syndrome. The doctors acted quickly, which helped the girl recover with few lasting effects. This is important because it highlights the urgency of treating compartment syndrome to prevent serious health issues. Who this helps: This helps doctors and healthcare providers in treating similar cases effectively.

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Researchers studied total joint replacements, a common treatment for severe arthritis in major joints. They found that while joint implants can last about 10 to 15 years, older and less active patients tend to have better long-term outcomes than younger and more active ones. A promising method using a biocompatible material called hydroxyapatite may help bones grow into implants more effectively, leading to longer-lasting joint replacements. Who this helps: This benefits patients needing joint replacements, particularly younger, active individuals.

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The study looked at the use of a Greenfield filter to prevent fatal blood clots in patients undergoing total hip or knee replacements. Out of 42 high-risk patients who received the filter before surgery, none suffered a fatal blood clot, and only one out of 24 patients who received the filter after surgery did. This shows that the Greenfield filter is a safe and effective way to prevent dangerous blood clots in certain patients. Who this helps: This helps patients at high risk for blood clots during joint surgeries.