Latest Research
All publications from the Cancer3.AI database, newest first.
Disseminated iatrogenic upper gastrointestinal Kaposi sarcoma following prolonged steroid use in a patients with Crohn's disease: a case report.
Makupa G, et al
This case report, published in the Journal of Medical Case Reports, describes a rare and serious complication in a 39-year-old African male with Crohn's disease who developed disseminated Kaposi sarcoma of the upper gastrointestinal tract following prolonged corticosteroid use. Kaposi sarcoma is a malignant vascular tumor caused by human herpesvirus-8 (HHV-8) and typically occurs in severely immunocompromised individuals, such as those with HIV/AIDS or organ transplant recipients. In this patient, long-term steroid-induced immunosuppression created conditions favorable for HHV-8-driven tumor development, confirmed by positive HHV-8 testing and endoscopic findings of mucosal lesions. When corticosteroids were discontinued and the patient was switched to infliximab, a biologic therapy for Crohn's disease, the Kaposi sarcoma paradoxically progressed, ultimately requiring systemic chemotherapy, after which the patient improved. This case highlights the critical need for clinicians to remain vigilant for Kaposi sarcoma in any patient on chronic immunosuppressive therapy who presents with unusual skin or mucosal changes, as early recognition can significantly alter the treatment course and outcome.
Journal of medical case reports
Source →Case report: Thymoma-associated GAD65 autoimmunity: a unifying mechanism for multi-organ injury involving nervous, endocrine, and renal systems.
Sun J, et al
Researchers report a detailed case study of a 59-year-old man who developed a cascade of autoimmune disorders affecting the nervous system, endocrine glands, and kidneys following surgical removal of a thymoma, a tumor of the thymus gland. The patient was diagnosed with stiff-person syndrome, latent autoimmune diabetes, subclinical hypothyroidism, and distal renal tubular acidosis — all linked to extremely high levels of antibodies targeting a single protein called GAD65. Laboratory analysis revealed that the GAD65 protein shares structural similarities with proteins in the kidney and thyroid gland, explaining how one rogue antibody could attack multiple organs simultaneously through a process called molecular mimicry. Treatment with intravenous immunoglobulin significantly reduced GAD65 antibody levels in both blood and spinal fluid, leading to notable clinical improvement across all affected organ systems. This case demonstrates that thymomas can trigger broad systemic autoimmunity through a single autoantigen, and suggests that high-titer GAD65 antibodies should prompt clinicians to screen thymoma patients for multi-organ involvement. The findings support early, coordinated multidisciplinary monitoring in patients with thymoma to catch and manage autoimmune complications before they become severe.
Frontiers in immunology
Source →Rapidly growing anterior mediastinal teratoma in a young adult female: successful resection via robotic-assisted thoracoscopic surgery.
Shmueli M, et al
Researchers report an unusual case of a 22-year-old woman diagnosed with a rapidly growing mature cystic teratoma in the anterior mediastinum, a rare benign germ cell tumor of the chest. The tumor measured 8 by 8 by 5 centimeters at the time of diagnosis, yet a CT scan performed four years earlier showed no abnormality, indicating exceptionally fast growth for a type of tumor that normally grows very slowly. The surgical team successfully removed the mass using robotic-assisted thoracoscopic surgery (RATS), a minimally invasive technique that provided precise visualization and dissection despite the tumor's proximity to the pericardium and the right phrenic nerve. Pathological examination confirmed the tumor was benign with no malignant features, and the patient recovered without complications. This case reminds clinicians that mediastinal teratomas, though typically slow-growing, can occasionally expand rapidly and require prompt diagnosis and intervention. It also supports the use of robotic surgery as a safe and effective approach for removing complex chest masses in challenging anatomical locations.
International journal of surgery case reports
Source →Disease Site-Specific Outcomes in p16-Positive Non-Oropharyngeal Mucosal Head and Neck Cancer.
Chelvarajah RC, et al
A new study published in Head & Neck examined whether the protein marker p16, commonly associated with HPV-related oropharyngeal cancers, also predicts survival outcomes in squamous cell cancers arising from other parts of the head and neck. Researchers analyzed over 3,000 patients treated with curative intent between 2009 and 2021, comparing disease-free survival (DFS) among those who tested positive for p16, negative for p16, or were never tested. The results showed that p16-positive patients had a significantly better 5-year DFS rate of 74% compared to 48% for p16-negative and 59% for untested patients, with the benefit being particularly pronounced in cancers of the larynx, hypopharynx, and nasal cavity. Notably, no survival advantage was observed in patients with cancers of the paranasal sinuses or oral cavity, suggesting that p16's prognostic value is site-dependent. These findings have important clinical implications, as routine p16 testing in select non-oropharyngeal head and neck cancers could help clinicians better stratify patient risk and tailor treatment strategies accordingly.
Head & neck
Source →Subglottic giant adenoid cystic carcinoma: a case report.
Zhang C, et al
Researchers from Frontiers in Surgery report an exceptionally rare case of adenoid cystic carcinoma (ACC) originating in the subglottic region of the larynx, a slow-growing but locally invasive cancer that is notorious for late diagnosis. A 72-year-old woman endured six years of cough and worsening breathlessness that was repeatedly misattributed to chronic pulmonary disease before laryngoscopy revealed a large, mobile tumor nearly blocking her airway. Emergency tracheostomy was performed to secure her breathing, followed by minimally invasive endoscopic removal of the tumor using plasma radiofrequency technology under suspension laryngoscopy, with pathology confirming a grade II ACC. This case highlights how subglottic ACC can convincingly mimic common respiratory conditions, causing dangerous delays in correct diagnosis and treatment. Clinicians are urged to consider early laryngoscopic examination in any patient with persistent, treatment-resistant breathlessness, as prompt identification and individualized airway management are critical to improving outcomes for this rare malignancy.
Frontiers in surgery
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