Diagnosis: Pseudomembranous oral candidiasis (thrush)
A 65-year-old male presents with white plaques on the tongue and palate that can be easily wiped off, accompanied by a burning sensation. The patient has a history of diabetes and has recently completed a course of antibiotics for a urinary tract infection, raising suspicion for a fungal etiology.
A 65-year-old male presents with a 2-week history of white plaques on the tongue and palate, accompanied by a burning sensation during eating. On examination, the plaques are well-defined, creamy-white, and easily removable, with erythematous areas noted underneath.Age: 65 yearsSex: MaleDuration: 2 weeksKey complaint: Burning sensation with oral intakeExam findings: White plaques on the tongue and palate that wipe off, revealing erythema
The patient reports that the white plaques began after completing a course of antibiotics for a urinary tract infection. He has a history of poorly controlled diabetes, which may predispose him to opportunistic infections. There are no known allergies, and he does not smoke or consume alcohol. His family history is unremarkable for autoimmune diseases or immunosuppression.Onset: After antibiotic therapyTriggers: Recent antibiotic usePrior treatments: None for current conditionPast medical history: Diabetes mellitus, poorly controlledSocial history: Non-smoker, no alcohol use
Acute / First-Line ManagementTopical antifungals: Nystatin oral suspension 5 mL swish and swallow QID for 7-14 days or clotrimazole troches 10 mg dissolved in the mouth five times daily for 14 days.Systemic antifungals: Fluconazole 200 mg on the first day, followed by 100 mg daily for 14-21 days if the patient is immunocompromised or if there is a severe presentation.Workup and Diagnostic ConfirmationClinical diagnosis: Typically based on characteristic appearance and history.Microscopic examination: KOH prep may be performed to identify yeast forms.Culture: Fungal culture can be considered in atypical cases or if treatment fails.Long-Term ManagementAddress underlying conditions: Optimize diabetes control to reduce recurrence risk.Prophylactic antifungal therapy: Consider in patients with recurrent infections, particularly in those with immunocompromising conditions.Patient education: Advise on oral hygiene and the importance of maintaining a balanced diet.
Oral leukoplakia: Typically presents as white patches that cannot be scraped off; associated with tobacco use and may indicate dysplasia.Herpes simplex virus infection: Characterized by painful vesicles and ulcers in the oral cavity; often accompanied by systemic symptoms.Geographic tongue: Presents as irregular, non-removable patches with a map-like appearance; not associated with pain or discomfort.Lichen planus: May cause white striae or plaques in the oral cavity, often associated with skin lesions.Burning mouth syndrome: Characterized by burning sensation without visible lesions; may have psychological or hormonal components.Drug-induced mucositis: Can present with oral lesions in patients taking certain medications, often with a history of chemotherapy or radiotherapy.Chronic hyperplastic candidiasis: Presents as a persistent white patch that cannot be scraped off; requires biopsy for diagnosis.Oral syphilis: May present with mucous membrane lesions; history of high-risk sexual behavior is often present.
High-Yield PearlsClinical presentation: Pseudomembranous candidiasis is characterized by removable white plaques, often associated with a burning sensation.Risk factors: Common in patients with diabetes, recent antibiotic use, or immunocompromising conditions.Diagnosis: Primarily clinical, but KOH prep or culture can aid in atypical cases.Treatment: Topical antifungals are first-line; systemic therapy is reserved for severe or recurrent cases.Prevention: Addressing underlying health issues, such as diabetes, and maintaining good oral hygiene are key to reducing recurrence.Remember: The presence of removable white plaques in the oral cavity often points to candidiasis, especially in at-risk populations.
Tags: oral candidiasis, thrush