DR. JASON R. PETTUS, M.D.

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This study looked at a specific type of kidney cancer that has both clear cell renal cell carcinoma (CCRCC) and papillary renal cell carcinoma (PRCC) in the same tumor. Researchers found that both cancer types shared a loss of a section of chromosome 21, which had not been documented before, along with other known genetic changes. This discovery is important because it provides new insight into how these tumors might develop and could lead to better understanding and treatment strategies for kidney cancer. Who this helps: This information benefits doctors and researchers working to improve kidney cancer diagnosis and treatment.

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This study looked at how well pathologists in the Veterans Affairs health system follow specific reporting guidelines for cancer diagnoses in 1,618 pathology reports from 2019 to 2021. They found that 48% of reports were written using a standardized format that improves communication, but this was much higher for surgical samples (77%) than for biopsy samples (19%). Improving the use of this standardized reporting is important for ensuring accurate cancer staging and care, especially since some key details were often missing. Who this helps: This helps patients by ensuring they receive more accurate and complete cancer diagnoses.

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This study looked at a new method for imaging prostate cancer using electrical signals from a biopsy probe on 22 prostates outside the body. The researchers found that using this new imaging technique allowed them to capture a much larger portion of the prostate tissue—up to 15%—compared to the standard biopsy method, which only got less than 1%. This is important because it could lead to better detection of cancer and improve the accuracy of diagnoses. Who this helps: This benefits patients undergoing prostate cancer evaluations, as well as the doctors treating them.

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Researchers studied different types of tumors found in the salivary glands, specifically looking at certain benign and early-stage cancerous lesions linked to a condition called pleomorphic adenoma. They found that many of these lesions, even with some unusual cell features, do not lead to recurrence or spread of cancer if they remain contained within the tumor. This is important because it suggests that some terms used to describe these lesions might cause unnecessary worry and treatment, and simpler names that reflect their generally harmless nature could be more appropriate.

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This study focused on a rare and aggressive type of lung tumor known as SMARCA4-UT, examining nine cases from three major medical centers. The researchers found that 44% of these tumors expressed a protein called GATA3, which could complicate diagnosis since other tumor types also express GATA3. The median survival for patients was only 6 months, which highlights the urgency in accurately identifying and treating this aggressive cancer. Who this helps: This information benefits doctors by improving diagnosis and treatment options for patients with SMARCA4-UT.

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This study focused on improving the way doctors handle and examine surgical samples from patients with a type of throat cancer called oropharynx squamous cell carcinoma (SCCa). Researchers created standardized two-dimensional maps that outline the anatomy of the throat and include important details about the surgeries, such as areas of concern. These maps help surgeons and pathologists communicate better, which ultimately leads to more accurate treatment planning and monitoring for patients; they provided crucial information on how the samples were taken and any microscopic details that could influence future care. Who this helps: This helps patients with throat cancer and their medical teams.

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Researchers looked into rare growths in the nasal cavity that have features of blood vessels, smooth muscle, and fat cells. They found that most of these lesions occurred in older men and often caused nasal blockage, but they generally didn't come back after treatment. This study is important because it clarifies how to classify these unusual growths, which can help doctors better understand and manage them.

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Researchers studied rare growths in the nasal cavity that contain blood vessels, smooth muscle, and fat tissue. They found that these growths often occur in older men and typically cause blockage or other symptoms, with most not recurring after removal. This is important because understanding the nature of these growths can help doctors accurately identify and treat similar conditions in the future.

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This research looked at desmoplastic small round cell tumors (DSRCT), which are rare and aggressive cancers mostly found in children and young adults. The study focused on three patients who had unique features of DSRCT that made diagnosis challenging. Finding the right diagnosis is crucial because DSRCT is nearly always fatal, and recognizing its different forms can help doctors identify it more accurately and improve patient care. Who this helps: This helps doctors and healthcare providers in diagnosing a rare and aggressive cancer.

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This study looks at a 77-year-old man diagnosed with a rare form of liver cancer that spread to the lung, identified by specific genetic mutations linked to the disease. The patient received palliative treatment, including radiation and a combination of two drugs, but unfortunately passed away six months after his diagnosis. These findings highlight the importance of understanding the genetic makeup of this cancer to explore better treatment options for patients with aggressive, hard-to-treat liver cancer. Who this helps: This helps patients with liver cancer and their doctors by providing insights for more effective treatments.

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This research followed a 67-year-old woman with a history of kidney issues linked to autoimmune diseases. After experiencing three severe episodes of kidney problems over 15 years, she found that the Janus Kinase (JAK) inhibitor tofacitinib helped her achieve complete recovery in just three months, without needing steroids. This is important because it shows that this medication might be an effective treatment option for a specific type of kidney disease called focal segmental glomerulosclerosis (FSGS), which could change how patients with similar conditions are treated. Who this helps: Patients with focal segmental glomerulosclerosis and related kidney issues.

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This research focuses on a rare type of kidney tumor that has a unique genetic feature called a GLI1-FOXO4 fusion gene. In one case, a patient had this tumor removed and is currently healthy, but the tumor's unusual characteristics mean doctors should keep an eye on it in the long run for any signs of returning or spreading. Understanding this new type of tumor is important because it adds to medical knowledge, potentially improving diagnosis and treatment in the future. Who this helps: This helps doctors and researchers working with kidney cancer patients.

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The study looked at the Cancer Protocols developed by the College of American Pathologists, which have guided how cancer pathology is reported for over 35 years. It found that using computer-friendly versions of these protocols helps pathologists report data more efficiently and ensures that cancer statistics are collected uniformly, benefiting areas like cancer surveillance. This is important because standardized reporting can lead to better patient care and research outcomes. Who this helps: This helps patients, doctors, and cancer researchers.

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This study examined how well machine learning can identify kidney structures called glomeruli in biopsy samples from different hospitals. Researchers tested this technology on 71 kidney biopsies and found that the sensitivity, or the ability to correctly identify glomeruli, was 90-93% within the same institution, but dropped to 77% when using samples from different hospitals. The findings are important because they show that training machine learning algorithms with a variety of samples can enhance their accuracy across different healthcare settings. Who this helps: This helps doctors and pathologists diagnose kidney conditions more accurately and efficiently.

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This research studied a new device called the OxyChip, which measures oxygen levels in tumors of cancer patients to help personalize treatments. The study involved 23 patients, and it found that the average oxygen level in tumors was 15.7 mmHg, with some patients having very low levels below 10 mmHg. After a treatment designed to increase oxygen, the average level went up to 31.8 mmHg, indicating that most tumors responded positively to the treatment, which shows the importance of measuring oxygen levels for better patient care. Who this helps: Patients with solid tumors who may benefit from tailored oxygen therapies.

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This study focused on bladder cancer that does not invade muscle, which often returns after treatment. Researchers found that a specific small molecule, Let-7f-5p, is closely linked to tumor recurrence. Patients with higher levels of Let-7f-5p in their urine and blood had a greater chance of their cancer coming back. These findings may help in developing better tests to predict recurrence and new treatments targeting the negative regulator of Let-7f-5p, called Lin28. Who this helps: This benefits bladder cancer patients and their doctors by providing tools to better predict cancer recurrence and explore new treatment options.

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This study looked at the use of an implantable device called the OxyChip, which measures oxygen levels in tumors, to see if it is safe and practical. The research involved 24 patients, most with skin or breast cancers, and it was found that using the OxyChip did not cause any unexpected serious health issues; the worst side effects were mild and typical for similar procedures. This is important because knowing oxygen levels in tumors can help improve cancer treatment outcomes. Who this helps: This helps patients undergoing cancer treatment by potentially improving their therapy based on tumor oxygen levels.

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This study looked at a new tool that uses machine learning to help pathologists quickly and accurately identify small structures called glomeruli in kidney biopsy samples. The researchers found that their best model detected glomeruli with 92% sensitivity and 89% specificity when using similar samples, and with 90% sensitivity and 98% specificity for different samples. This advancement matters because it could make the process of reviewing kidney biopsies faster and more reliable, ultimately leading to better patient care. Who this helps: This helps patients diagnosed with kidney conditions and the doctors who treat them.

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This study looked at a type of bladder cancer that doesn’t invade muscle, which often comes back after treatment. Researchers found that a specific molecule in tumor tissue, called miR-26b-5p, could predict whether the cancer would recur. Patients with higher levels of this molecule had a significantly lower chance of recurrence, with a risk reduction of up to 95% compared to those with lower levels. Who this helps: This helps patients with non-muscle-invasive bladder cancer by guiding better treatment and monitoring strategies.

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This study looked at how well the Roche Cobas 4800 test can detect high-risk human papillomavirus (HPV) in preserved throat cancer samples. Out of 26 valid tests, the Cobas 4800 showed a 96.2% agreement with other testing methods, and it perfectly identified samples positive for HPV-16 and HPV-18. This is important because it highlights a reliable and cost-effective way to test for HPV in throat cancer, which can help doctors make better treatment decisions. Who this helps: This helps patients with throat cancer and their doctors.

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This study focused on a rare type of cancer called primary renal lymphoma, which affects the kidneys. The researchers documented a unique case where a patient had severe kidney failure and high calcium levels due to this rare cancer, leading to the need for immediate kidney removal surgery. This is important because it highlights how unusually primary renal lymphoma can appear, which can help doctors recognize and treat similar cases more effectively in the future. Who this helps: This benefits patients with unexpected kidney issues and their doctors by improving diagnosis and treatment options.

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This study looked at the accuracy of tests that identify genetic mutations in lung cancer tumors, which are crucial for patients seeking experimental treatments. The researchers found cases where central labs incorrectly reported the presence of a specific mutation (EGFR) due to issues with how they handled the tumor samples, which led to patients being denied entry to clinical trials. This is important because it shows the need for better testing practices and alternative methods to ensure patients get the right evaluations before starting new therapies. Who this helps: This helps patients with lung cancer who are looking for access to clinical trials.

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This study looked at a rare type of growth in glands near the anal area of a woman with Cowden syndrome, a condition that makes people more likely to get certain types of tumors. The researchers found a growth that was 1 centimeter wide and shared features with tumors found in breast tissue. This is important because it suggests that people with Cowden syndrome might also be at risk for tumors in these mammary-like glands, not just in the breast. Who this helps: This information is useful for patients with Cowden syndrome and their doctors, as it highlights a potential new area of concern for monitoring.

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This study looked at how effectively a specific genetic testing method, called targeted next-generation sequencing, can identify mutations in non-small cell lung cancers (NSCLC), particularly adenocarcinomas. Researchers analyzed 453 lung cancer samples and found a total of 633 genetic variants across 41 genes, with 237 samples having mutations that could guide treatment decisions. The most common mutations were in the KRAS gene (37.9%) and the EGFR gene (11.1%). This testing method is valuable because it can quickly identify important mutations, helping doctors choose the best treatment for their patients. Who this helps: Patients with non-small cell lung cancer who need targeted therapy.

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This study looked at a rare condition called Immunoglobulin G4-related disease, focusing on how it can affect the urinary bladder. The researchers reported the third known case of this disease in the bladder, which typically shows signs of inflammation and cell growth. Understanding this condition is important because it can easily be missed by doctors, leading to improper treatment. Who this helps: This helps urologists and patients experiencing unexplained bladder issues.

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This study looked at how a team of experts, called a Molecular Tumor Board (MTB), can help make better treatment decisions for cancer patients by analyzing the genetics of their tumors. Out of 35 patients evaluated, the MTB recommended targeted therapies for 32 cases, and about 56% of those recommendations led to treatments based on genetic information. Notably, 12.5% of patients actually received these recommended therapies, with some seeing significant benefits lasting over 10 months. Who this helps: This helps cancer patients by providing them with personalized treatment options based on their tumor's genetic profile.

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This research studied how certain cancer cells use fats from food to grow and survive. Scientists found that specific breast cancer and sarcoma cells can produce and use an enzyme called lipoprotein lipase (LPL) to break down fats in the bloodstream, which helps these cancer cells grow faster. In tests, 181 tumor samples mostly showed high levels of LPL and a related protein, indicating that a majority of these tumors rely on fats from the body for energy, highlighting the potential for dietary fat management as a treatment approach. Who this helps: This helps patients with breast cancer, sarcoma, and prostate cancer.

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This study looked at a type of mouth cancer called oral squamous cell carcinoma (OSCC), which has a low 5-year survival rate of around 50%. Researchers found that certain proteins, called kallikreins (specifically KLK 5, 7, 8, and 10), were significantly more active in aggressive forms of this cancer, with increases of 2.8 to 5.3 times compared to less aggressive forms. These findings are important because they could help identify patients at a higher risk for severe disease and point to new treatment options. Who this helps: This helps cancer patients and doctors by providing new targets for diagnosis and treatment.