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Autoimmune blistering dermatoses as systemic diseases.

Autoimmune blistering dermatoses are examples of skin-specific autoimmune disorders that can sometimes represent the cutaneous manifestation of a multiorgan disease due to potential common pathogenic mechanisms. As soon as a distinct autoimmune blistering dermatosis is diagnosed, it is imperative to consider its potential systemic involvement, as well as the autoimmune and inflammatory conditions that are frequently associated with it. In paraneoplastic pemphigus/paraneoplastic autoimmune multiorgan syndrome, the internal organs (particularly the lungs) are affected by the autoimmune injury. P

[Hypogonadism despite of normal testosterone levels].

We report on a 19 year old patient with clinical signs of hypogonadism (small testicles, missing pollutions and diminished beard growth) despite of normal testosterone levels. Further diagnostic procedures revealed panhypopituitarism with insufficiency of the gonadotrope, somatotrope and corticotrope axis due to a beta-HCG-producing suprasellar germinoma with intracerebral metastases. Paraneoplastic production of beta-HCG resulted in sufficient stimulation of Leydig cells with normal production of testosterone, which had partly masked clinical symptoms of gonatrope insufficiency. The patient w

Unveiling the Etiopathogenic Spectrum of Hypophysitis: A Narrative Review.

Hypophysitis, a rare inflammatory disorder of the pituitary gland, has seen an uptick in reported cases in recent years. Our objective is to summarize the most recent research on the etiopathogenesis, molecular mechanisms, and genetics of both primary and secondary hypophysitis. Primary autoimmune hypophysitis (PAH): During the acute phase of the disease, the pituitary gland in enlarged due to the infiltration of T and B lymphocytes. The chronic phase is characterized by progressive and irreversible pituitary atrophy. APA may play a role in the management, diagnosis, and prognosis of PAH. Spec

[Case observations on the significance of early pregnancy factor as a tumor marker].

At three patients who have been operated on because of completely different tumours (trophoblast tumour, endodermalsinus tumour of the right ovary and rhabdomyosarcoma as well as adrenal cortex carcinoma) pre-operatively the Early Pregnancy Factor (EPF) could in each case be shown in the serum with the help of the rosette inhibition test. In two cases the EPF already intra-operatively disappeared from the serum. In the third case it could be found until the second day after operation. Since that patient suffered from two histogenetically non-related malignant tumours it was not possible to tra

Impact of Cushing's syndrome on the gonadotrope axis and testicular functions in men.

STUDY QUESTION: Does Cushing's syndrome (CS) differently affect the gonadotrope axis and testicular functions (GA/TF) according to the hypercortisolism intensity and underlying etiology? SUMMARY ANSWER: Endogenous cortisol excess caused by CS leads to varying degrees of hypogonadotropic hypogonadism (HH) with more severe GA/TF impairment and altered spermatogenesis in men with intense hypercortisolism associated with paraneoplastic/ectopic adrenocorticotrophic hormone (ACTH) secretion (EAS). WHAT IS KNOWN ALREADY: CS is very rarely studied in men due to its lower prevalence in men than in wo

Cutaneous paraneoplastic syndromes in cats: a comparative clinical review.

PRACTICAL RELEVANCE: Cutaneous paraneoplastic syndromes (CPSs) in cats represent a diverse group of rare dermatological manifestations that occur as indirect consequences of underlying neoplasia. These syndromes are thought to arise due to tumour-associated systemic effects, including dysregulation of immune responses, metabolic disturbances and aberrant production of cytokines or growth factors. Recognising CPSs is clinically relevant, as they may serve as early indicators of occult neoplasia, guiding timely diagnosis and intervention. CLINICAL CHALLENGES: Diagnosing CPSs requires a high ind

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… Paraneoplastic endocrine syndromes: a contemporary overview. Expert Rev Endocrinol Metab 2025; 20: 51–62. 47. Pérez-Bucio C, Behere A, Landegren N. Mechanisms of autoimmune-mediated paraneoplastic syndromes: immune tolerance and disease pathogenesis. Front Immunol 2025; 16. … Paraneoplastic endocrine syndromes. Endocr Relat Cancer 2017; 24: 173–190. 49. Godfrey DR. Dermatosis and associated systemic signs in a cat with thymoma and recently treated with an imidacloprid preparation. J Small Anim Pract 1999; 40: 333–337. 50. Banovic F, Gomes P, Trainor K, et al. …

Protective Effects of Omega-3 Fatty Acids in Cancer-Related Complications.

Omega-3 polyunsaturated fatty acids (PUFAs) are considered immunonutrients and are commonly used in the nutritional therapy of cancer patients due to their ample biological effects. Omega-3 PUFAs play essential roles in cell signaling and in the cell structure and fluidity of membranes. They participate in the resolution of inflammation and have anti-inflammatory and antinociceptive effects. Additionally, they can act as agonists of G protein-coupled receptors, namely, GPR40/FFA1 and GPR120/FFA4. Cancer patients undergo complications, such as anorexia-cachexia syndrome, pain, depression, and p

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… Nevertheless, there is no evidence linking paraneoplastic tumor-induced hypercalcemia and omega-3, as well as in relation to other kinds of paraneoplastic endocrine syndromes. … Paraneoplastic endocrine syndromes Endocr. Relat Cancer 2017 24 173 190 10.1530/ERC-17-0036 28341725 146. Kir S. White J.P. Kleiner S. Kazak L. Cohen P. Baracos V.E. …

Association of type 1 stiff-person syndrome and insulinoma: a case report and narrative review.

INTRODUCTION: Stiff-person syndrome (SPS) is a rare neurological disorder that causes progressive muscle rigidity, gait disturbances, and functional impairment; type 1 is autoimmune, with positive anti-GAD antibodies (Ab), while type 2 is paraneoplastic and associated with antiamphiphysin Ab. CASE PRESENTATION: A 41-year-old man with a silent medical history presented with stiffness and functional impairment; after numerous rheumatological and neurological investigations, he was diagnosed with SPS, with evidence of high titer anti-GAD Ab. After treatment with benzodiazepines was started, the

Turning Points in Cross-Disciplinary Perspective of Primary Hyperparathyroidism and Pancreas Involvements: Hypercalcemia-Induced Pancreatitis, MEN1 Gene-Related Tumors, and Insulin Resistance.

We aimed to provide an in-depth analysis with respect to three turning points in pancreas involvement in primary hyperparathyroidism (PHP): hypercalcemia-induced pancreatitis (HCa-P), MEN1 (multiple endocrine neoplasia)-related neuroendocrine tumors (NETs), and insulin resistance (IR). This was a comprehensive review conducted via a PubMed search between January 2020 and January 2024. HCa-P (n = 9 studies, N = 1375) involved as a starting point parathyroid NETs (n = 7) or pancreatitis (n = 2, N = 167). Case report-focused analysis (N = 27) showed five cases of pregnancy PHP-HCa-P and three rep

Non-diabetic hypoglycemia: bridging gaps in diagnosis and treatment: a position statement report by the Arabic Association for the Study of Diabetes and Metabolism (AASD).

BACKGROUND: Non-diabetic hypoglycemia presents a substantial diagnostic challenge due to its diverse and often nonspecific symptomatology. The resultant delay in diagnosis can lead to a myriad of misdiagnoses. This misidentification not only prolongs patient suffering but also elevates the risk of severe complications, such as permanent neurologic damage and mortality. Recognizing the clinical nuances of non-diabetic hypoglycemia is paramount for timely and accurate diagnosis, which ultimately enhances patient outcomes and safety. MAIN BODY: A position statement has been formulated by the Ara

Связанная с паратироидным гормоном гиперкальцемия злоумышленника: исследования из многоцентрального хранилища клинических данных.

BACKGROHL/AIMS: Протеин, связанный с паратироидными гормонами (PTHrP), является одним из основных посредников гиперкальцемии у пациентов, страдающих злоумышленностью; однако понимание гиперкальцемии с помощью PTHrP остается ограниченным, поскольку имеющиеся данные в значительной степени получены из небольших рядов дел. МЕТОДЫ: Мы ретроспективно проанализировали электронные медицинские записи восьми больниц, связанных с Католическим университетом Кореи. Взрослые пациенты (> 20 лет) с подтвержденной злокачественной и скорректированной на альбумин гиперкальцемией (≥ 10,5 мг/дл) в период с 2013 по

Involvement of Pruritus, Gut Dysbiosis and Histamine-Producing Bacteria in Paraneoplastic Syndromes.

Background/Objectives: Paraneoplastic syndromes (PNS), characterized by a large diversity of symptoms, may sometimes be the first clinical feature of a severe underlying disorder such as cancer. Methods: We report the case of a middle-aged male patient with no significant previous medical history, a nonsmoker or alcohol heavy drinker, complaining about generalized, recently onset itch. Given no reasonable explanation of pruritus after dermatological consultation and the unsatisfactory response to treatment, the patient was referred to gastroenterology with the suspicion of a cholestatic liver

Superior Vena Cava Syndrome due to Thrombosis: A Rare Paraneoplastic Presentation of Bronchogenic Carcinoma.

Superior vena cava (SVC) syndrome is not an uncommon occurrence in patients with malignancy and it is often described as a medical emergency. In majority of the cases, SVC syndrome occurs due to mechanical obstruction of the SVC by extraluminal compression with primary intrathoracic malignancies. However, intraluminal obstruction due to thrombosis can also produce symptoms and signs of SVC syndrome. Clot-related SVC obstruction is mostly associated with indwelling central venous catheter and pacemaker leads, although such thrombosis can occur spontaneously in a background of a hypercoagulable

Infiltrative and inflammatory systemic disorders involving the pituitary gland.

The hypothalamic-pituitary region can be affected by a wide and heterogeneous group of infiltrative and inflammatory disorders, including granulomatous, histiocytic, storage, infectious, non-pituitary neoplastic, and autoimmune or inflammatory conditions collectively grouped as hypophysitis. Although individually rare, these disorders are increasingly recognized due to growing awareness, wider use of pituitary imaging, and the emergence of immune checkpoint inhibitor-induced hypophysitis. They typically present with hypopituitarism (often including arginine vasopressin deficiency, which, parti

Neurofilament light chain in serum of cancer patients with acute neurological complications.

Aim: Neurofilament light chain (NfL) is a nonspecific sensitive biomarker of axonal damage.Methods: This case series identified cancer patients with neurological complications who had serum NfL measurements and paired these results to outcomes.Results: NfL serum levels were available in 15 patients with hematological malignancies or solid tumors. The neurological complications studied were immune effector cell-associated neurotoxicity syndrome, immune checkpoint inhibitor-related encephalopathy, anoxic brain injury, Guillain-Barre syndrome, hemophagocytic lymphohistiocytosis, transverse myelit

A Rapid Review of Adenocarcinoma and Pulmonary Tumor Thrombotic Microangiopathy: A Deadly Duo.

Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare paraneoplastic syndrome associated with various adenocarcinomas, most commonly gastric adenocarcinoma. This condition can progressively worsen pulmonary arterial hypertension, leading to acute or subacute pulmonary heart failure and respiratory insufficiency. This paper examines the pathogenesis, clinical presentation, diagnosis, treatment, and prognosis of PTTM. Given PTTM's poor prognosis, we emphasize treatment strategies. PTTM in adenocarcinoma patients can mimic other pulmonary diseases, causing diagnostic delays. Current PTTM tr

Clinical practice guidelines on addressing cognitive impairment in treatable dementias.

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