Latest Research
All publications from the Cancer3.AI database, newest first.
Clinicopathological features of primary cold agglutinin disease in the Japanese population: Heterogeneous characteristics and diagnostic challenges.
Sato Y, et al
Researchers in Japan conducted a comprehensive study to clarify the clinical and pathological characteristics of primary cold agglutinin disease (CAD), a rare autoimmune condition in which the body attacks its own red blood cells upon exposure to cold temperatures. Among 21 patients initially diagnosed with CAD, eight were reclassified as having cold agglutinin syndrome due to underlying infections or other cancers, while the remaining 13 underwent detailed histological and molecular analysis. The study revealed that primary CAD encompasses a highly heterogeneous spectrum, with some patients showing features overlapping with other slow-growing B-cell lymphomas and others having very few detectable tumor cells, making diagnosis particularly difficult. Ultimately, nine of the 13 patients (69%) were confirmed as having primary CAD based on integrated clinical and molecular findings. These results highlight significant diagnostic challenges even after standard clinical evaluation and suggest that the current WHO diagnostic criteria for primary CAD may need further refinement to better capture its full clinical range. For clinicians, this study underscores the importance of thorough molecular and histological workup when diagnosing primary CAD, particularly in the Japanese population where data have been limited.
Journal of clinical and experimental hematopathology : JCEH
Source →[Metastasis of renal carcinoma to the thyroid gland].
Avilés-Salas A, et al
Researchers report a rare case of renal clear cell carcinoma (RCCC) metastasizing to the thyroid gland in an 81-year-old man, four years after his initial kidney cancer diagnosis and surgical removal. RCCC is the most common form of kidney cancer, accounting for 90% of renal tumors, and is known for its unpredictable behavior, including the ability to spread to distant organs many years after the primary diagnosis. When the patient developed a neck mass, imaging revealed a thyroid nodule, and given his oncological history, surgeons performed a total thyroidectomy. Microscopic and immunohistochemical analysis of the removed tissue confirmed the nodule was not a primary thyroid cancer but rather metastatic RCCC, based on the characteristic clear cell appearance and positive markers RCC, CD10, and PAX-8 alongside negative thyroid markers CK7 and TTF-1. This case highlights a critical clinical lesson: in patients with a prior history of renal cell carcinoma, any newly discovered thyroid nodule should be evaluated with metastatic disease in mind, as accurate diagnosis is essential for appropriate treatment planning.
Medicina
Source →[Lost anatomical structure - pharyngeal pituitary gland (Hypophysis pharyngealis or Erdheim pituitary gland): a review and case report].
Satanin LA, et al
Researchers reviewed the anatomy, physiology, and clinical significance of the pharyngeal pituitary gland, a small glandular structure located beneath the mucous membrane of the nasopharynx along the path of the embryonic Rathke's pouch. This structure, also known as the Erdheim pituitary gland, is a permanent anatomical feature in humans and is capable of secreting the same hormones produced by the anterior pituitary gland. The study combined a literature review with a clinical case report to explore the potential role of this overlooked structure in the development of ectopic pituitary adenomas arising outside the skull. The findings confirm that the pharyngeal pituitary gland may serve as the origin of rare extracranial tumors in the nasopharynx and skull base, which can cause endocrine disturbances that are difficult to diagnose without awareness of this structure. These results are clinically important for physicians managing patients with unexplained hormonal disorders or unusual tumors in the skull base region, as the pharyngeal pituitary gland should be considered a potential source of ectopic adenomas.
Zhurnal voprosy neirokhirurgii imeni N. N. Burdenko
Source →Bilateral adrenal lesions as a manifestation of prolonged glucocorticoid withdrawal in classical adrenal hyperplasia.
Klasa A, et al
This clinical vignette from Endokrynologia Polska presents a case involving bilateral adrenal lesions that developed as a complication of prolonged glucocorticoid withdrawal in a patient with classical congenital adrenal hyperplasia (CAH). Classical CAH is a genetic disorder in which the adrenal glands cannot produce cortisol normally, requiring lifelong glucocorticoid replacement therapy; when this treatment is inadequate or interrupted, the pituitary gland releases excess ACTH, which chronically overstimulates adrenal tissue. The case highlights how sustained ACTH excess can lead to adrenal enlargement or nodule formation that may mimic other, more concerning adrenal pathologies such as tumors. This report underscores the importance of careful medication management in CAH patients and warns clinicians that bilateral adrenal lesions in this context may represent a benign consequence of hormonal imbalance rather than a malignant or independent adrenal disease. Recognizing this pattern can help avoid unnecessary invasive diagnostic procedures or surgery in affected patients.
Endokrynologia Polska
Source →[Hypothalamic obesity in adults with craniopharyngiomas: prevalence and risk factors before and after neurosurgical treatment].
Klochkova IS, et al
Researchers at a Russian neurosurgical center prospectively studied 99 adult patients with craniopharyngioma — a benign but destructive brain tumor near the hypothalamus — to determine how often hypothalamic obesity develops before and after surgery, and which factors predict it. They found that 32% of patients already had hypothalamic obesity prior to surgery, and this figure rose to 57% after the operation, with 71% of patients gaining at least 5% of their body weight postoperatively. Tumors involving the pituitary stalk and third ventricle were more likely to cause obesity than those confined to the sellar region, and patients with pre-existing mental disorders or hypogonadism were at greater risk. Multivariate analysis identified two independent predictors of post-surgical hypothalamic obesity: a preoperative body mass index at or above 27 kg/m² and damage to the floor of the third ventricle caused by tumor infiltration. Importantly, neither the tumor's histological type, the surgical approach used, nor the extent of tumor removal influenced obesity risk, suggesting that hypothalamic damage itself — not surgical aggressiveness — is the dominant driver. These findings can help clinicians better identify high-risk patients before surgery and inform more individualized treatment and weight-management strategies for craniopharyngioma survivors.
Zhurnal voprosy neirokhirurgii imeni N. N. Burdenko
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