Early syphilis A51.-

Authors: Prof. Dr. med. Peter Altmeyer, Dr. med. Stephan Große-Büning

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Last updated on: 29.10.2020

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Synonym(s)

Acquired lues; French disease; Lues acquired; Pleasure Disease; Syphilis; syphilis acquisita

History
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Leonicenus (Leonicus), 1497

Definition
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Worldwide spread, bacterial, sexually transmitted infection with a typical, phased, chronic course with initial localized, to a progressive systemic infectious disease.

Pathogen
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Treponema pallidum (Spirochaeta pallida), a spirochetes which is only transmitted in a warm and humid environment due to its sensitivity.

Occurrence/Epidemiology
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In 2015 the nationwide incidence was 8.5 cases /100,000 inhabitants/year. In Berlin the incidence was 31/100,000 inhabitants, in Hamburg 19.7/100,000. In Europe (29 countries) the average incidence in 2014 was 5.1 cases/100,000 inhabitants/year. The lowest incidence was found in Italy (0.6/100,000), the highest in Malta (11.5/100,000 inhabitants/year).

The proportion of reported syphilis cases in Germany was 6.2% for women.

Syphilis infections are more common among men who have sex with men ("men who have sex with men" MSM). This group has seen the highest growth rates in recent years. S.a. Slamming.

Up to 15% of those infected in Germany suffer from HIV infection at the same time, up to 80% of those infected with HIV are TPHA- positive (no significant difference in clinical course).

Etiopathogenesis
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Direct transmission from person to person by smear infection, especially during sexual intercourse. The pathogens enter the organism through microscopic epithelial defects.

Very rare are "non-sexual" accidental transmissions in lesions in the area of the oral mucosa.

Infections through blood transfusion are almost impossible today.

Localization
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Early syphilis (primary effect):

  • Genitals: In men the glans, sulcus coronarius and the inner foreskin leaf (see also condom chancre) are mainly affected. In women, large and small labia, clitoris and urethral orifice are affected.
  • Extragenital (5%): Occurs mainly perianally, intrarectally, in the mouth, oral cavity, on tonsils, lips, cheek mucous membrane, female nipples. Any part of the body may be affected.

Clinical features
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  • Early syphilis (syphilis I and II; syphilis <1 year):
    • Syphilis I: incubation period 2-3 weeks. Primary effect: Painless, mostly solitary (see also imprint chancre), indurated papules of different sizes, which ulcerates very quickly and turns into a painless, coarse ulcer ( ulcus durum). In about 5% of cases the primary effect also occurs extragenitally (mainly orally; rarely on fingers or nipples).
      • Special form: Oedema indurativum. Primary complex = indolent regional lymphadenitis (bubo) + primary effect.
    • Syphilis II: After about 2-3 weeks spontaneous remission of the primary complex. The patients appear free of symptoms during the first latency phase of 4-6 weeks. The stage of generalized spirochetosis begins about 7-8 weeks after infection. There are general clinical symptoms such as fatigue, exhaustion, slight fever, sore throat, generalized lymphadenopathy (indolent, shifting, an important sign from a differential diagnostic point of view [DD: lymphatic systemic diseases!]), muscle and joint pain.
    • The first visible skin symptoms are generally non-itching, often only discreet, pink, macular exanthema with scarless healing ( roseoles).
    • In the further course of the disease, clearly visible, increasingly polymorphic exanthema appear, which regularly involve the palm and soles of the feet (palmoplantar palm/foot syphilis = important differential diagnostic sign of this exanthema).
    • S.a.
    • Depigmentation or hyperpigmentation may occur at the site of healed syphilis, see Leucoderma syphiliticum, Venusian collar.
    • Alopecia: S.u. Alopecia areolaris syphilitica, Alopecia specifica diffusa.
    • Extracutaneous manifestations/general condition: fatigue, loss of appetite, slight temperature rise, myalgia, polyarthritic pain (polyarthritis syphilitica, periostitis syphilitica), mostly nocturnal bone pain (Osteocopi nocturni), especially in the femur, tibia, humerus, temporal region, sternum, clavicle. Also: nocturnal headaches, iritis, nephritis, phlebitides, peripheral bitises.
    • Notice. About 75% of all untreated syphilis cases heal spontaneously after secondary syphilis!

  • Late syphilis (syphilis III and IV; syphilis > 1 year) see below, Syphilis acquisita late syphilis:

Laboratory
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S.u. Syphilisserology. TPHA test and VDRL test are effective screening tests. Confirmation response: FTA test, FTA-Abs test (gold standard of confirmation test procedures).

Histology
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  • Early syphilis:
    • Primary effect: dense, diffuse, histiocyte-rich mixed infiltrate in all layers of the dermis. Different admixture of eosinophilic granulocytes and especially of plasma cells.
    • Syphilitic exanthema: The histological picture varies according to the clinic. Psoriasiform syphilia show the picture of an interface dermatitis with psoriasiform epidermal reaction (irregular acanthosis, spongiosis, focal parakeratosis, apoptotic keratocytes) and an (unusually) dense, band-shaped infiltrate in the upper and middle dermis (lymphocytes, histiocytes and plasma cells (!)). Extension of the infiltrate to the deep vascular plexus. Possible are epitheloid-cellular granulomas, which condense in the late phase of early syphilis.
  • Late syphilis (syphilis III + IV, from the end of the 2nd year after infection): Superficial and deep infiltrate. Infiltrate composition as before, but epitheloid cell (tuberculoid) granulomas develop with increasing compression.

Diagnosis
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  • Early syphilis: clinic, pathogen detection by dark field method, syphilisserology (positive 2-3 weeks after the primary effect).
  • Late syphilis: ex juvantibus: regression of the changes due to internal iodine administration, previously exclusion of tuberculosis.

Differential diagnosis
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  • Clinical differential diagnosis:
    • Primary genital effect: ulcer mostly painless, firm, always regional lymphadenopathy.
    • Syphilitic exanthema:
      • Drug exanthema, maculo-papular: medical history. Rarely infestation of the palms and capillitium. The colour is mostly light red, in case of syphilis brown-red. No lymphadenopathy. Itching may be present.
      • Psoriasis vulgaris: Distribution pattern and typical elbow infection exclude syphilis. No oral lesions. No lymphadenopathy. Infestation of the palms is possible.
      • Infectious exanthema ( DD): These are to be excluded on the basis of the overall clinical symptoms (acute onset, general symptoms) and specific laboratory tests.
      • Pityriasis rosea (most important DD in an early syphilitic exanthema): Primary medallion. No infestation of the palms. Never mucous membrane symptoms. No lymphadenopathy.
      • Scabies: mostly prominent itching with scratch excoriations (always absent in syphilis!). Mite duct structures. Infestation of the palms of the hands, especially in young patients, is rare. No lymphadenopathy.
  • Histological differential diagnoses:
      • Lichen planus: prominent interface dermatitis with pronounced vacuolisation of the basal keratinocytes. No plasma cells.
      • Lichenoid drug reaction: mostly marked dermal edema. Often eosinophilia. No plasma cells.
      • Mycosis fungoides: typical halo formation around polymorphic lymphocytes. Hardly any plasma cells. Marked epidermotropy with vacuolized epidermis cells. Eosinophilia is possible.
      • PLEVA: No histiocytes. No plasma cells.
      • Acrodermatitis chronica atrophicans: Atrophy of the epidermis and narrowing of the dermis. Dilated dermal vessels. Numerous plasma cells.

Therapy
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Therapy of the 1st choice is benzathine penicillin G. Dosage: 2.4 million I.U. i.m. (gluteal left/right per 1.2 million I.U.)

Alternatively: Ceftriaxone 1.0 g/day i.v. over 10 days.

Alternative: Doxycycline 100mg 2x/day p.o. for 14 days.

Alternative: Erythromycin 0,5g 4x/day p.o. over 14 days.

Notice! Occurrence of a Herxheimer reaction (historically exact: Jarisch-Herxheimer reaction) some hours after penicillin administration is possible (about 25-65% of patients)!

For prophylaxis, 25-50 mg prednisolone can be administered one hour before or during the injection of penicillin. Special treatment requirements apply in cases of penicillin intolerance, epilepsy or pregnancy.

Progression/forecast
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  • Early syphilis: Spontaneous healing is possible. Untreated or insufficiently treated, a transition to syphilis III or syphilis IV is possible.
  • Late syphilis: lethality in case of infestation of the cardiovascular system 80-90%. Healing of defects, but usually progression to death. Permanent disability or debility.

Tables
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Therapy of the Syphilis acquisita

Active substance

Example preparation

Dosage

Duration

Early syphilis * 1

Benzathine penicillin

Pendysin

2.4 million IU i.m.

1-time application

For penicillin allergy *

Doxycycline

DoxyHexal

2 times/day 100 mg p.o. or i.v.

14 days

Erythromycin

Erythrocin

4 times/day 500 mg p.o.

14 days

Late syphilis * 2

Benzathine-penicillin as depot injection

Tardocillin 1200

2.4 million IE i.m.

3 times at intervals of 7 days (day1,8,15)

Alternatively *

Doxycycline

DoxyHexal

2 times/day 100 mg p.o. or i.v.

28 days

Ceftriaxone

Rocephin

1.0 g/day i.v.

14 days

Neurosyphilis *

Benzylpenicillin sodium

Penicillin G Jenapharm

6 times/day 3-4 million IE i.v.

alternatively: 10 million IU 3 times/day i.v.

14-21 days

Alternatively

Ceftriaxone

Rocephin

2.0 g/day i.m. or i.v.(initial 4.0g)

14-21 days

For epileptic seizures due to high dose of penicillin

Benzylpenicillin-procain/benzylpenicillin sodium

retacillin compositum

1.2-2.4 million IU/week i.m.

7-14 days

Then: benzathine-penicillin

3 times/week 2.4 million IU i.m.

3 weeks

For penicillin allergy

Doxycycline

DoxyHexal

2 times/day 100-200 mg i.v.

30 days

Pregnancy

Benzathine penicillin

Pendysin

2.4 million IE i.m.

1-3 times (at intervals of 1 week)

For penicillin allergy

erythromycin 3

Erythrocin

4 times/day 500 mg p.o.

depending on stage

Azithromycin

Zitromax

once/day 500 mg p.o.

depending on stage

Ceftriaxone

Rocephin

250-1000 mg/day i.v. or i.m.

depending on stage

Literature
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  1. Aquilina C et al (2003) Secondary syphilis simulating oral hairy leukoplakia. J Am Acad Dermatol 49: 749-751
  2. Brown DL et al (2003) Diagnosis and management of syphilis. On Fam Physician 68: 283-290
  3. Buntin DM et al (1991) Sexually transmitted diseases: Bacterial infections. J Am Acad Dermatol 25: 287-299
  4. Doherty L et al (2002) Syphilis: old problem, new strategy. BMY 325: 153-156
  5. Golden MR et al (2003) Update on syphilis: resurgence of an old problem. JAMA 290: 1510-1514
  6. Harry TC (2002) Infectious syphilis and importance of travel history. Lancet 359: 447-448
  7. Lee JY, Lee ES et al (2003) Erythema multiforme-like lesions in syphilis. Br J Dermatol 149: 658-660
  8. Leonicenus N (1497) De morbo gallico. Aldus Manutius, Venice
  9. Potthoff A et al (2005) Syphilis and HIV infection. Characteristic features of diagnosis, clinical assessment, and treatment. Dermatologist 56: 133-140
  10. Walker DG, Walker GJ (2002) Forgotten but not gone: the continuing scourge of congenital syphilis. Lancet Infect Dis 2: 432-436

Disclaimer

Please ask your physician for a reliable diagnosis. This website is only meant as a reference.