The INCORRECT Statement is C
The presence of fungus in a patient with an indwelling urinary catheter does NOT always constitute a urinary tract infection - this is candiduria (fungal colonization), which is frequently asymptomatic and does not require treatment in most cases.
Analysis of Each Statement
Statement C - The Incorrect Answer
Funguria (candiduria) in catheterized patients represents colonization in the vast majority of cases, not infection 1, 2, 3. The IDSA guidelines explicitly state that candiduria in catheterized patients is "no more significant an indicator of invasive disease than isolation from any other single site" 4. Antifungal therapy is not indicated for patients with asymptomatic candiduria 3. Simply removing the indwelling urinary catheter is often sufficient to clear candiduria without antifungal therapy 3. The guidelines emphasize that "more research is warranted into its diagnosis, need for treatment, and prevention" of funguria, acknowledging the common overtreatment of this condition 1.
Statement A - Correct
While esophageal candidiasis is indeed a common form of candidiasis, particularly in immunocompromised patients, the evidence shows it occurs most frequently in HIV/AIDS patients with CD4+ counts <100 cells/mm³ 5. However, the statement may be misleading as vulvovaginal candidiasis actually affects a much larger absolute number of patients globally 6, 7.
Statement B - Correct
This statement is accurate. Vulvovaginal candidiasis affects approximately 75-80% of women at least once during their lifetime 7, 8, 9. The Global Candidiasis Guideline confirms that "vulvovaginal candidiasis is estimated to affect 75% of women at least once during their lives" 6. About 50% of women experience at least a second episode, and up to 10% develop recurrent infections 6.
Statement D - Correct
Hepatosplenic candidiasis (chronic disseminated candidiasis) is a well-recognized complication that "usually occurs in hematology patients with prolonged neutropenia" 10. This condition specifically develops "as a complication of candidemia in neutropenic patients, especially when patients with gastrointestinal tract mucositis do not receive antifungal prophylaxis" 10. The guideline strongly supports imaging in "haematology patients at high risk with prolonged neutropenia and persistent fever or right-upper quadrant pain" to exclude chronic disseminated candidiasis 6.
Statement E - Correct
When fungal infections occur without apparent risk factors, HIV testing is appropriate. Esophageal candidiasis was historically considered an AIDS-defining illness 5, 11. While it can occur in HIV-negative patients with other immunosuppressive conditions or even rarely in immunocompetent individuals, the absence of obvious risk factors should prompt HIV evaluation 5, 12.
Key Clinical Pitfall
The most common error is overtreating asymptomatic candiduria in catheterized patients. This leads to unnecessary antifungal exposure, increased costs, and potential development of resistance. The appropriate management is catheter removal when feasible, not empiric antifungal therapy 3.