Related Experiment Video
Updated: May 29, 2026

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
Early syphilitic meningoencephalitis masquerading as postclimacteric endogenous depression--a unique dermatologic
G Tchernev1, J Cardoso, J Trafeli
1Department of Dermatology and Venerology, Trakian University, Medical Faculty of Stara Zagora, Armnneiska Street Nr 11, Stara Zagora 6000, Bulgaria.
Syphilis, a sexually transmitted disease, can mimic other conditions, presenting as a "great imitator." This case highlights secondary syphilis with neurological involvement, initially mistaken for a drug eruption.
Area of Science:
- Infectious Diseases
- Neurology
- Dermatology
Background:
- Syphilis is a significant sexually transmitted disease with increasing incidence in developed nations.
- The secondary stage of syphilis is known for its diverse symptoms, often mimicking other dermatological and systemic conditions.
- Syphilis is referred to as the "clinical chameleon" or "great imitator" due to its varied presentations.
Observation:
- A female patient presented with symptoms initially suspected as endogenous depression and later a generalized maculopapular exanthem after antidepressant therapy.
- The patient's rash, particularly with palmoplantar involvement, led to a dermatology consultation, with suspicion of a drug eruption.
- Nonspecific neurological symptoms preceded the characteristic skin manifestations, prompting consideration of early syphilitic meningoencephalitis.
Findings:
- A diagnosis of secondary syphilis with palmoplantar involvement and early syphilitic meningoencephalitis was established in the patient.
- The clinical presentation initially mimicked a drug eruption and endogenous depression.
Implications:
- This case underscores the importance of considering syphilis in the differential diagnosis of various dermatological and neurological conditions, especially when symptoms are atypical.
- Early diagnosis and treatment of secondary syphilis with neurological involvement are crucial for achieving complete remission.
- Recognizing syphilis as a "great imitator" is vital for clinicians to avoid diagnostic delays and ensure appropriate patient management.
Related Concept Videos
Cryptococcal Meningitis
Endocarditis II: Clinical Features of Infective Endocarditis
Encephalitis l: Introduction
Multiple Sclerosis l: Introduction
Cirrhosis I: Introduction
Depressive Disorders: MDD and Dysthymia
