Lymph Node Penetration From Gastric Burkitt Lymphoma in a Patient Living With HIV/AIDS.

Non-Hodgkin's Lymphoma (NHL) in people living with Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome (HIV/AIDS) still constitutes a reality of high morbidity and mortality, sometimes not respecting the patient's degree of immunosuppression as it can even occur in those with a high CD4+ T lymphocyte count. Burkitt's lymphoma, in this sense, has been shown to be one of the main subtypes of this condition in this group of patients. This case report concerns a 32-year-old man diagnosed with metastatic gastric Burkitt's lymphoma after one month of his admission to a tertiary hospital for neurological complaints. The aim of this study is to raise an alert to suspect this diagnosis even in patients with adequate immunity, a well-done history, and a physical examination, which are the main pillars for reaching a diagnosis.

Disseminated Kaposi Sarcoma Associated With Cytomegalovirus Proctitis in People Living With Human Immunodeficiency Virus (PLHIV): A Major Diagnostic Dilemma.

Kaposi sarcoma (KS) is a vascular tumor of low malignancy. Lesions may vary in shape, color, and size. Angiogenesis, spindle-shaped cells, and inflammatory infiltration are the main histologic features of the condition. Human herpesvirus-8 (HHV-8) infection and immune dysfunction play a key role in the development of KS. We report a case of a 40-year-old man with disseminated KS (DKS) who underwent an endoscopic examination. Colonoscopy revealed an ulcer in the anal canal. Biopsy and immunohistochemistry (IHC) confirmed the diagnosis of cytomegalovirus (CMV) proctitis, a rare and underreported pathology.

Challenges in Diagnostic of the Ulcerative Rectitis by Lymphogranuloma venereum in Chlamydia trachomatis Infection and AIDS.

Lymphogranuloma venereum is a rare manifestation of Chlamydia trachomatis infection and may manifest with anorectal symptoms, rectitis, proctitis, and inguinal masses. The new outbreaks of Chlamydia infection have allowed the description of new cases with rectal symptoms (rectitis/proctitis), mainly in people living with HIV and men who have sex with men. The authors present the clinical findings in people living with HIV men who have sex with men with lymphogranuloma venereum with ulcerative rectitis identified by colonoscopy. Differentiation of proctitis was made from other causes of sexually transmitted infections, such as gonorrhea and herpes virus, inflammatory diseases (Crohn's disease), and neoplastic and opportunistic infections such as cytomegalovirus, tuberculosis, and histoplasmosis. The symptoms of the patient and the endoscopic lesions were suspected of lymphogranuloma venereum with ulcerative proctitis, which was confirmed by biopsy and performing the polymerase chain reaction. After appropriate treatment with doxycycline, the patient evolved favorably.