Latest Research
All publications from the Cancer3.AI database, newest first.
Imaging features of an extramammary Paget's disease of the penis: A case report and literature review.
Shimomura M, et al
Researchers present a case report of an 83-year-old man diagnosed with extramammary Paget's disease (EMPD) of the penis, a rare and often difficult-to-diagnose skin cancer, complicated by the coexistence of condyloma acuminatum (genital warts). The study focused on characterizing the magnetic resonance imaging (MRI) features of this unusual presentation, in which the tumor had a distinctive cauliflower-like appearance. MRI revealed specific signal patterns: low-to-intermediate intensity on T1- and T2-weighted images, high signal on diffusion-weighted images, surrounding flow voids, and intense early-phase contrast enhancement, together forming a recognizable imaging profile for EMPD. These MRI characteristics were found to be potentially useful not only for accurate diagnosis of EMPD in atypical presentations but also for distinguishing it from coexisting skin conditions such as condyloma acuminatum. This case highlights the value of advanced MRI techniques in evaluating rare penile malignancies and may guide clinicians toward earlier and more precise diagnoses in similar complex cases.
Radiology case reports
Source →The effects of the PHF6 gene mutation on myeloid neoplasms. A single-center cohort underpinned by a systematic review of literature.
Suárez EU, et al
Researchers investigated the prognostic significance of mutations in the PHF6 gene in patients with myeloid neoplasms, a group of blood cancers that includes acute myeloid leukemia. The study combined a retrospective analysis of 313 patients treated at a single center, of whom 15 carried PHF6 mutations, with a systematic review of previously published literature on the topic. Multivariate analysis revealed that PHF6 mutation was associated with higher mortality compared to patients with the normal gene variant, with a statistically marginal but significant hazard ratio, and the adverse effect was most pronounced in acute myeloid leukemia specifically. No significant differences were found in the time to disease progression or the need for next-line treatment based on PHF6 mutation status. The findings suggest that PHF6 mutations carry a negative prognostic signal in myeloid neoplasms, consistent with most prior studies, but clinicians are cautioned that the effect size is small and results must be interpreted carefully within established prognostic frameworks given the limited sample size.
Annals of hematology
Source →18F-DOPA PET Silence in High-grade Glioma Subtype F: A Distinct Metabolic Phenotype.
Quéré C, et al
Researchers report the first case of a newly recognized brain tumor subtype — high-grade glioma IDH-wildtype, subtype F (HGG-F) — evaluated using 18F-DOPA PET imaging, a specialized scan that measures amino acid uptake to detect aggressive brain tumors. Despite the patient showing extensive abnormalities on standard MRI scans, the 18F-DOPA PET scan appeared completely normal, revealing no increased tracer uptake in the affected brain regions. This striking absence of PET signal, termed 'amino acid PET silence,' stands in sharp contrast to the typically intense PET activity seen in other high-grade gliomas and represents a unique metabolic fingerprint of this subtype. HGG-F is a newly described epigenetic brain tumor category characterized by widespread, infiltrative growth resembling a rare pattern called gliomatosis, a low rate of cell division, and surprisingly long patient survival despite a molecular profile associated with the most aggressive tumors. These findings suggest that when clinicians encounter a mismatch between an alarming MRI appearance and a normal amino acid PET scan, HGG-F should be considered as a possible diagnosis. Early recognition of this subtype is clinically important because it may spare patients from unnecessarily aggressive treatments and help guide more appropriate management strategies.
Clinical nuclear medicine
Source →Giant Pleomorphic Adenoma of the Hard Palate in a 17-Year-Old Afghan Male.
Fayaz Y, et al
Researchers report a rare case of pleomorphic adenoma, a benign salivary gland tumor, found in an unusual location and patient demographic: the hard palate of a 17-year-old Afghan male. Pleomorphic adenoma typically occurs in older adults, most often in women during their fourth or fifth decade of life, and usually develops in the major salivary glands such as the parotid gland. The tumor presented as a well-defined, painless swelling with intact overlying tissue, and was successfully removed through complete surgical enucleation. The patient experienced no postoperative complications, and a three-month follow-up confirmed no signs of recurrence. This case highlights that pleomorphic adenoma can occur in young male patients and in minor salivary gland locations such as the hard palate, reminding clinicians to consider this diagnosis across a broader range of ages and anatomical sites.
International medical case reports journal
Source →Reframing thymic epithelial tumors through single-cell transcriptomics: a narrative review.
Matsumoto M, et al
Thymic epithelial tumors (TETs) are rare and biologically complex cancers arising from thymic epithelial cells, and their accurate classification has long been complicated by significant cellular diversity. This narrative review synthesizes findings from three pivotal studies that applied single-cell RNA sequencing (scRNA-seq) to primary human TET tissue, providing unprecedented cellular-resolution insights into tumor architecture. A major discovery was the identification of a distinct thymic epithelial cell subpopulation — termed neuromuscular medullary TECs (nmTECs) — that abnormally expresses neuromuscular antigens and appears to drive the autoimmune disease myasthenia gravis, which frequently co-occurs with certain thymomas. Additional analyses revealed that the gene-expression programs of tumor epithelial cells directly shape the surrounding immune microenvironment, either retaining immature T-cells or permitting mature T-cells to predominate, with direct implications for immune regulation within these tumors. Independent research groups converged on biologically coherent classifications of TETs based on epithelial lineage identity and immune composition, both of which correlate with clinical behavior and patient prognosis. These collective findings establish a cell-centered framework for understanding and reclassifying thymic tumors that could ultimately support more precise diagnostics and the development of targeted therapies for patients with these rare cancers.
Mediastinum (Hong Kong, China)
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