Widely Disseminated Cryptococcosis Manifesting in a Previously Undiagnosed Human Immunodeficiency Virus
John Howard1, Thomas Z Thompson1, Rodger D MacArthur2
1Department of Pathology, Medical College of Georgia at Augusta University, Augusta, GA, USA.
Abstract:
BACKGROUND After initial infection with HIV, loss of CD4+ T cells progresses along a predictable timeline. The clinical latency stage lasts an average of 10 years, until the CD4+ T cell count falls below 200 cells/uL or the patient develops an AIDS-defining opportunistic infection/cancer. This report describes an unusual opportunistic infection in a young patient with no prior clinical evidence of HIV infection. CASE REPORT An 18-year-old man presented with fever, abdominal pain, and dyspnea for the previous 2 weeks and was symptomatically treated for gastroenteritis. He presented 2 weeks later with extreme fatigue, and a CT scan revealed diffuse lymphadenopathy. He was transferred to a regional hospital, but upon arrival and prior to detailed investigative work-up, he developed cardiac arrest. Despite maximal resuscitative efforts, he died approximately 8 h after admission. At autopsy, diffuse lymphadenopathy, splenomegaly, and pulmonary congestion were noted. Disseminated cryptococcal infection involving almost every organ system was identified at autopsy. A postmortem HIV-1 antibody test was positive. The cause of death was severe immunodeficiency as a result of advanced HIV infection resulting in disseminated cryptococcal infection, with cerebral edema, herniation, and respiratory failure. CONCLUSIONS This patient's non-specific symptoms in conjunction with his rapid decline made arriving at a correct diagnosis challenging. Only during autopsy was the disseminated fungal infection discovered, leading to suspicion of HIV infection. HIV autopsies are not uncommon, but the clinical history is usually known beforehand. This case report highlights the importance of considering HIV-related conditions in patients presenting with this array of symptoms, as well as to alert healthcare providers and staff to the need for increased biosafety precautions.
Related Concept Videos
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Sexually Transmitted Infections
Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Immunodeficiency Diseases
There are three main causes of immunodeficiency...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...


