26-year-old woman went camping in Connecticut
A 26-year-old woman went camping in Connecticut 1 week ago. During her trip she was exposed to mosquito bites and at least on 1 occasion removed an adult tick from the back of her neck. The patient also swam in a small pond but promptly left the area after she identified animal feces in the water. The patient had sexual intercourse with new boyfriend of 6 weeks and smoked marijuana.
She presents now with fever, headache, photophobia, and blurry vision. She has developed a rash affecting her palms and soles (see figure).
Her temperature is 102°F, pulse is 106/minute, and blood pressure is 143/92 mm Hg. Computed tomography of the brain is unremarkable. A lumbar puncture reveals 832 white blood cells with 62% of mononuclear cells. Cerebrospinal fluid (CSF) glucose is normal, and CSF protein is 55 mg/dL. A Gram stain is negative.
This patient likely has which of the following?
- borreliosis
- tertiary syphilis
- primary syphilis
- leptospirosis
- secondary syphilis
The correct answer is:
secondary syphilis
This patient likely has secondary syphilis manifested by a maculopapular rash affecting the palms and soles; she also has evidence of meningitis. The initial chancre ulcer is usually painless and many patients may overlook it.
Compromise of the central nervous system in syphilis can occur in the setting of secondary or tertiary syphilis. Asymptomatic infiltration of the brain and meninges can also occur. In other cases, a person may develop frank meningitis with or without compromise of the cranial nerves. The CSF shows lymphocytic pleocytosis and elevated protein. Typically, results from the Venereal Disease Research Laboratory test will be positive in the CSF. Patients can also develop a meningovascular form of the disease with frank vasculitis that causes strokes. Uveitis and otosyphilis (characterized by hearing loss with or without tinnitus) are also manifestations of secondary syphilis.
Compromise of the central nervous system in tertiary syphilis is now rarely seen. Manifestations include general paresis (dementia) and tabes dorsalis (a disease affecting the posterior aspect of the spinal cord causing ataxia and severe lower extremity pain).
Borreliosis is transmitted by tick bites and can occasionally cause meningitis. The typical rash involves a bull’s eye lesion as the primary manifestation and may be potentially followed by a disseminated rash. However, compromise of the hands and soles is unusual.
Leptospirosis can also cause aseptic meningitis. The disease is acquired by exposure to water contaminated with animal urine or feces. Patients usually have a biphasic course with a severe febrile illness with bacteremia followed by a more immune-mediated subacute condition with nephritis, hepatitis, and hemorrhage. Conjunctival suffusion is a common manifestation, but a rash is relatively rare.
References:
Golden MR, Marra CM, Holmes KK. Update on syphilis: resurgence of an old problem. JAMA. 2003;290(11):1510-1514.
Shapiro ED. Clinical practice. Lyme disease. N Engl J Med. 2014;370(18):1724-1431.
Sperber SJ, Schleupner CJ. Leptospirosis: a forgotten cause of aseptic meningitis and multisystem febrile illness. South Med J. 1989;82(10):1285-1288.
“Secondary Stage Syphilis Sores (Lesions) on the Palms of the Hands. Referred to as ‘Palmar Lesions.".”Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, 2 Aug. 2012
This question appears in Med-Challenger Physician Assistant Exam Review with CME
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