Diagnosis: Eosinophilic folliculitis (HIV-associated)
A 35-year-old male with a history of HIV presents with recurrent sterile pustules on the face and upper trunk. The lesions are pruritic and have not responded to topical corticosteroids, indicating a possible underlying condition often associated with immunocompromised states.
A 35-year-old male with HIV, diagnosed 5 years prior, presents with a 3-month history of recurrent, pruritic sterile pustules on the face and upper trunk. Examination reveals multiple erythematous papules with central pustules predominantly on the cheeks, forehead, and upper back. No systemic symptoms are reported, and there is no evidence of other cutaneous infections.Distribution: Predominantly on the face and upper trunk.Lesion characteristics: Erythematous papules with central pustules.Pruritus: Present and significant.Systemic signs: No fever or systemic illness noted.Response to treatment: Minimal response to topical corticosteroids.
The patient reports that the pustules began approximately 3 months ago, coinciding with a recent decline in CD4 counts. He has experienced multiple episodes of similar lesions in the past, but they were less frequent and resolved spontaneously. Previous treatments included topical corticosteroids without significant improvement. He denies any new medications, changes in lifestyle, or recent exposures. His past medical history is significant for HIV with a CD4 count of 200 cells/mm³, and he is on antiretroviral therapy. He has no significant family history of skin disorders.Onset: 3 months ago with worsening CD4 counts.Previous episodes: History of recurrent similar lesions.Treatments tried: Topical corticosteroids with minimal effect.Medical history: HIV with low CD4 counts.Social history: No known drug allergies or recent exposures.
Acute / First-Line ManagementTopical corticosteroids: Clobetasol propionate 0.05% cream applied twice daily, particularly for localized lesions.Oral corticosteroids: Prednisone 0.5-1 mg/kg/day may be considered for severe cases.Workup and Diagnostic ConfirmationSkin biopsy: To confirm the diagnosis, revealing eosinophilic infiltrate.Laboratory studies: Complete blood count (CBC) to assess eosinophil levels and CD4 counts.Long-Term ManagementAntiretroviral therapy: Optimizing HIV treatment to improve immune function.Oral antihistamines: For symptomatic relief of pruritus.Consideration of systemic therapies: Dapsone or oral corticosteroids if lesions are recalcitrant.
Folliculitis: Typically presents with pustules around hair follicles but is more common in younger, immunocompetent individuals.Acne vulgaris: Can present with pustular lesions but usually has comedones and affects adolescents and young adults.Scabies: Causes pruritic papules but is associated with burrows and typically spares the face.Pustular psoriasis: Characterized by well-defined plaques with pustules, often associated with systemic symptoms.Impetigo: Usually presents with honey-colored crusts and is more common in children; culture would reveal Staphylococcus or Streptococcus.Drug eruptions: Can present with pustular lesions but are often associated with systemic symptoms or a clear drug history.Cutaneous T-cell lymphoma: May present with papules or plaques and is more indolent in course.Secondary syphilis: Can present with pustular lesions but is typically associated with systemic symptoms and mucous membrane involvement.
High-Yield PearlsEosinophilic infiltration: Key histological finding in eosinophilic folliculitis, which helps differentiate from other pustular conditions.Immunocompromised states: Most commonly associated with HIV, highlighting the importance of CD4 monitoring.Topical corticosteroids: Often used as first-line therapy, though may provide limited relief.Oral therapies: Consider systemic corticosteroids or dapsone for recalcitrant cases.Pruritus management: Oral antihistamines can significantly improve quality of life by managing itch.Always consider eosinophilic folliculitis in HIV patients with recurrent pustular lesions, as timely intervention can significantly improve symptoms and quality of life.
Tags: eosinophilic folliculitis, HIV