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Isolated cutaneous cryptococcosis in clinically unsuspected idiopathic CD4 lymphocytopenia
Divya Sharma1, Neha Singh1, Seema Kaushal1
1Department of Pathology, Maulana Azad Medical College and Associated LNJP Hospital, New Delhi, India.
Insights
Idiopathic CD4 lymphocytopenia is a rare condition characterized by low CD4 T-cells without HIV infection. This case highlights a unique presentation of cutaneous cryptococcal infection, emphasizing the need for broader diagnostic considerations.
Area of Science:
- Immunology
- Infectious Diseases
Background:
- Idiopathic CD4 lymphocytopenia (ICL) is defined by low CD4 T-lymphocyte counts without HIV or other causes.
- It is often associated with opportunistic infections, typically systemic ones.
Observation:
- A case of ICL is presented in a patient with no identifiable risk factors or HIV.
- The patient presented with a cutaneous cryptococcal infection.
Findings:
- Diagnosis of cutaneous cryptococcosis was confirmed through cytological examination.
- This presentation is unusual as systemic infections are more common in ICL.
Implications:
- This case expands the spectrum of clinical presentations for ICL.
- Highlights the importance of considering cutaneous manifestations in ICL diagnosis.
- Suggests that cytology can be a valuable tool for diagnosing opportunistic infections in ICL patients.
Abstract:
Idiopathic CD4 lymphocytopenia first defined in 1992 by the U.S. Centers for Disease Control and Prevention, as the repeated presence of a CD4(+) T-lymphocyte count of fewer than 300 cells/cumm or of <20% of total T-cells with no evidence of human immunodeficiency virus (HIV) infection and therapy that might cause depressed CD4 T-cells. Most of the cases present with systemic opportunistic infections. We report a case without risk factors or laboratory evidence of HIV infection, presenting with cutaneous cryptococcal infection, diagnosed on cytology.
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