Nodulo-ulcerative and erythrodermic secondary syphilis in human immunodeficiency virus-infected individuals

An Exuberant Case of Ulceronodular-Rupioid (Malignant) Syphilis in an HIV Patient: A Proposal for New Diagnostic Criteria

We report the case of a 28-year-old male with uncontrolled human immunodeficiency virus (HIV) infection who presented with extensive ulcerated lesions with dark lamellated crusting on his face, torso, and limbs. The patient had a rapid plasma reagin (RPR) titer of 1:512, indicative of syphilis. A skin biopsy revealed granulomata surrounded by lymphocytes, histiocytes, and plasma cells, with spirochetes visible on immunohistochemical staining. The patient's rash resolved with hyperpigmented scarring after penicillin and doxycycline treatment. This severe form of secondary syphilis has been termed malignant syphilis, lues maligna, ulceronodular syphilis, or rupioid syphilis. We propose a single descriptive name for this entity, ulceronodular-rupioid syphilis. In 1969, Fisher proposed criteria for malignant syphilis based on lesion appearance, histopathologic findings, high RPR values, and rapid response to treatment. We found that the Fisher criteria were imprecise with respect to specific histopathologic findings, the quantitation of RPR values, and what constitutes rapid response to treatment. Thus, we examined an additional 74 cases from the literature and propose new diagnostic criteria based on rash appearance, histopathologic characteristics, non-treponemal and treponemal test positivity, and response to therapy. We also found that uncontrolled viremia, and not a low CD4 count, is a major risk factor for ulceronodular-rupioid syphilis in HIV patients.

Generalized Asymptomatic Nodulo-Ulcerative Lesions Without Systemic Symptoms in a Secondary Syphilis Patient Co-Infected with HIV

Syphilis is a sexually-transmitted disease with various clinical stages. Secondary syphilis manifestations may mimic other skin lesions. Patient co-infected with Human Immunodeficiency Virus (HIV), with CD4 cell counts of 200-499 cells/mm3, often manifests an atypical cutaneous lesion, which may also occur as nodular or ulcerative lesions. Generalized nodulo-ulcerative lesions without systemic symptoms in secondary syphilis patients with HIV co-infection are rarely reported. A 22-year-old man presented with generalized asymptomatic multiple erythematous papules and plaques with scales, as well as nodular and nodulo-ulcerative lesions on the trunk, both arms, and both legs. His lesions spread progressively without the presence of any prodromal symptoms or adenopathy. He was previously diagnosed with HIV and is currently on antiretroviral medications, with a CD4 cell count of 388 cells/μL. His venereal disease research laboratories (VDRL) result was reactive (titer of 1:256). His Treponema pallidum hemagglutination assay (TPHA) result was also reactive (titer of 1:10,240). A skin biopsy was performed from the nodulo-ulcerative lesion on his back. Hematoxylin-eosin staining revealed a hyperplastic epidermis, a massive influx of plasma cells, and lymphocyte infiltration into the deep dermis, especially in the peri-adnexal, peri-vascular, and peri-muscular regions. The patient was diagnosed with secondary syphilis with HIV co-infection. He had no previous history of drug allergy. A single dose of 2.4 million units of benzathine penicillin G was administered. Almost all the lesions became hyperpigmented macules after two weeks and resolved completely after one month. His VDRL titer declined to 1:32 after three months. The various atypical lesions of secondary syphilis may lead to misdiagnosis and delayed treatment. The presence of multiple asymptomatic nodulo-ulcerative lesion without prodromal symptoms may indicate the presence of secondary syphilis, notably in patients co-infected with HIV. Therefore, knowledge of atypical cutaneous manifestations of secondary syphilis is warranted in order to treat patients accordingly.

Secondary syphilis mimicking tuberculoid leprosy in an HIV-positive individual: a case report

Secondary syphilis is a polymorphic condition resulting from the hematogenous and lymphatic dissemination of Treponema pallidum. Human immunodeficiency virus-positive patients are in greater risk of atypical and severe forms of the disease. The most common manifestation is a generalized papulosquamous eruption with variable mucosal involvement. However, annular plaques, split commissural papules, crusted necrotic or ulcerated lesions are also frequent. Granulomatous lesions, both clinically and histologically, are less common and present a diagnostic challenge. We describe a case of secondary syphilis presenting as a granulomatous rash with both clinical and histological features of tuberculoid leprosy. Complementary tests and clinical suspicion are essential to ensure a correct diagnosis and avoid subsequent complications.