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Updated: Jun 2, 2026

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Murine Mesenteric Lymphadenectomy for Selective Disruption of Lymphatic Communication with Region-Specific Gut
Published on: December 30, 2025
[Mesenteric cryptococcal lymphadenitis: report of one case]
Oscar Tapia1, Miguel Villaseca, Juan Carlos Araya
1Departamento de Anatomía Patológica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile. otescalona@gmail.com
Summary
Cryptococcosis, a fungal infection, rarely affects the abdomen. This case highlights intra-abdominal cryptococcal lymphadenitis in an HIV-positive patient presenting with acute abdominal symptoms.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Gastroenterology
Background:
- Cryptococcosis is an invasive fungal infection primarily caused by Cryptococcus neoformans.
- It predominantly affects immunocompromised individuals, often presenting as meningeal infection.
- Intra-abdominal cryptococcal infections are exceptionally rare clinical occurrences.
Observation:
- A 21-year-old, HIV-positive male undergoing treatment for meningeal cryptococcosis developed acute abdominal symptoms mimicking appendicitis.
- Surgical exploration revealed enlarged, conglomerated mesenteric lymph nodes with a macroscopically normal appendix.
- The excised lymph nodes and appendix were subjected to pathological examination.
Findings:
- Pathological analysis confirmed intra-abdominal cryptococcal lymphadenitis.
- The appendix was found to be macroscopically and microscopically normal, ruling out appendicitis.
- This case demonstrates an unusual presentation of cryptococcosis in the abdominal cavity.
Implications:
- Highlights the importance of considering rare opportunistic infections in immunocompromised patients with atypical presentations.
- Suggests that abdominal pain in HIV-positive patients with cryptococcosis may not always be due to common causes like appendicitis.
- Underscores the need for thorough pathological examination of surgical specimens in suspected cases of opportunistic infections.
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