A 35-year-old HIV positive patient with skin and gastrointestinal localization of a Kaposi's sarcoma was admitted for severe diffuse edema. Increased alpha-I-antitrypsin clearance (150 ml/24 h) allowed us to confirm the diagnosis of protein loosing enteropathy resulting from sarcoma infiltration in the stomach, the duodenum and the entire small bowel. At autopsy, ileal ulcerations were found. Gastrointestinal involvement occurring during Kaposi's sarcoma is common and usually symptomless. The discovery of a protein loosing enteropathy in our patient suggests that this gastrointestinal involvement could play a role in the hypoalbuminemia often found in these patients.
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Rev Med Chil
September 2024
Laboratorio Biología Molecular, Hospital Base de Valdivia, Valdivia, Chile.
Unlabelled: Non tuberculous mycobacteria (NTM) are important opportunistic infection in patients with AIDS.
Aim: To present 4 cases of disseminated infections by NTM in patients with AIDS.
Results: These cases were associated with prolonged symptoms of fever, weight loss, diarrhea or cough, with hepatosplenomegaly, anemia and thrombocytopenia.
Am J Dermatopathol
February 2025
Clinic of Dermatology, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy.
Angiosarcoma of the penis is an exceptionally rare mesenchymal tumor, with only about 30 cases documented in the literature. Because of its rarity and the often nonspecific clinical presentation, histopathological examination plays a critical role in accurate diagnosis. Angiosarcoma of the penis typically arises in the corpus cavernosum but has also been reported in the glans and urethra, often presenting with metastases.
View Article and Find Full Text PDFCells
January 2025
Department of Oncology (Medical Oncology), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Kaposi Sarcoma (KS) is a vascular tumor originating from endothelial cells and is associated with human herpesvirus 8 (KSHV) infection. It disproportionately affects populations facing health disparities. Although antiretroviral therapy (ART) has improved KS control in people with HIV (PWH), treatment options for advanced KS remain limited.
View Article and Find Full Text PDFKidney Int
February 2025
Division of Nephrology, Department of Internal Medicine, School of Medicine, Marmara University, Istanbul, Türkiye. Electronic address:
Front Microbiol
January 2025
Departments of Otorhinolaryngology-Head and Neck Surgery and Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Oncogenic gamma herpesviruses, including Epstein-Barr Virus (EBV) and Kaposi's Sarcoma-associated Herpesvirus (KSHV), are opportunistic cancer-causing viruses and induces oncogenesis through complex mechanisms, which involves manipulation of cellular physiology as well as epigenetic and epitranscriptomic reprogramming. In this review, we describe the intricate processes by which these viruses interact with the epigenetic machinery, leading to alterations in DNA methylation, histone modifications, and the involvement of non-coding RNAs. The key viral proteins such as EBNA1 and LMP1 encoded by EBV; LANA and vGPCR encoded by KSHV; play pivotal roles in these modifications by interacting with host factors, and dysregulating signaling pathways.
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