Pityriasis versicolor on the groin mimicking erythrasma. Fallbericht. Eine Erythrasma nachahmende Pityriasis versicolor in der Leistengegend

Aste, Nicola

doi:10.1111/j.1439-0507.2004.00977.x

Cited by 18 publications

(7 citation statements)

References 6 publications

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“…In other words, the linear dimension of the physical system has to be longer than its gravitational radius. A. Aste [5] reached similar conclusions by imposing a cutoff on the maximum energy of the field modes of the order of the Planck energy. The maximum energy W max of a state in Fock space should be M bh (R) c 2 , the energy of a black hole with radius R. Therefore [5] W max ≈ c 4 2G R.…”

Section: Introductionmentioning

confidence: 52%

On a gravitational cutoff for the vacuum energy

Culetu¹

2006

Braz. J. Phys.

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A possible connection between the energy W of the vacuum fluctuations of quantum fields and gravity in "empty space" is conjectured in this paper using a natural cutoff of high momenta with the help of the gravitational radius of the vacuum region considered. We found that below some "critical" length L = 1mm the pressure σ is one third of the energy density ε, but above 1 mm the equation of state is σ = −ε as for dark energy). In the case of a massive field, W does not depend on the mass of the field for L << 1mm but for L >> 1mm it does not depend on . In addition, when the Newton constant tends to zero, W becomes infinite. The energy density is also a function of the volume V of the vacuum region taken into account.

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Section: Introductionmentioning

confidence: 52%

On a gravitational cutoff for the vacuum energy

Culetu¹

2006

Braz. J. Phys.

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“…Histological examination may also help distinguish this pathogen and will reveal hyphae and small spores in the stratum corneum described as “spaghetti and meatballs”. However, the diagnosis is usually confirmed by examination of a KOH preparation of the lesion [ 6 , 9 - 12 ].…”

Section: Discussionmentioning

confidence: 99%

Erythrasma Revisited: Diagnosis, Differential Diagnoses, and Comprehensive Review of Treatment

Forouzan¹,

Cohen²

2020

Cureus

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Erythrasma is a bacterial infection of the skin typically caused by Corynebacterium minutissimum. This pathogen infects the stratum corneum in warm and wet areas of the skin. Most commonly, the axillary, inguinal, and interdigital regions are affected. A 60-year-old man presented for the examination of a pedunculated lesion on his right proximal thigh. Upon examination of the lesion, adjacent areas of central hypopigmentation and peripheral hyperpigmented scaling were also noted bilaterally in the groin region. Differential diagnoses of candidiasis, dermatophyte infection, erythrasma, pityriasis versicolor, and terra firma-forme dermatosis were considered. Wood lamp examination revealed bright coral-pink fluorescence. Correlation of the clinical examination and the Wood lamp finding established the diagnosis of erythrasma. Twice daily topical 2% mupirocin ointment therapy led to the resolution of our patient’s erythrasma. In this case report, the diagnosis, differential diagnoses, and treatment of erythrasma are reviewed.

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“…Atypical presentations of erythrasma can be confused with other skin conditions. [50][51][52] At the same time, many common skin conditions can be misdiagnosed as erythrasma. In the following paragraphs, these conditions are discussed, highlighting their distinguishing features.…”

Section: Differential Diagnosismentioning

confidence: 99%

Erythrasma: A Superficial Cutaneous Bacterial Infection Overlooked in Clinical Practice

Rajkumar

2023

Infectious Diseases

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Erythrasma is a common superficial cutaneous bacterial infection caused by Corynebacterium minutissimum, a normal inhabitant of the skin surface. Under favourable conditions, the organism invades the stratum corneum, where it multiplies and produces clinically evident lesions. Increasing age, excessive sweating, diabetes mellitus, obesity, overcrowding and immunosuppression, including HIV, are risk factors for the disease. The condition can be confused with other infectious and non-infectious skin diseases, chiefly dermatophytosis. Erythrasma clinically presents in the groin, axilla, submammary, inguinal, intergluteal cleft and web spaces between the toes. Coinfection with fungi and superinfection upon primary dermatosis are common. Erythrasma can be diagnosed with a characteristic coral-pink fluorescence with Wood‘s lamp examination. Smears, biopsy and cultures are seldom required but are useful when the Wood‘s lamp test is negative. Atypical presentations do occur and require astute clinical judgment. This condition should be distinguished from other dermatosis as treatment is different. Treatment is with topical or oral antimicrobials, depending on the site and extent of the lesions. Recurrence can occur, and methods to prevent it should be in place. Novel treatments need robust testing prior to inclusion in the therapeutic armamentarium.

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Pityriasis versicolor on the groin mimicking erythrasma. Fallbericht. Eine Erythrasma nachahmende Pityriasis versicolor in der Leistengegend

Cited by 18 publications

References 6 publications

On a gravitational cutoff for the vacuum energy

On a gravitational cutoff for the vacuum energy

Erythrasma Revisited: Diagnosis, Differential Diagnoses, and Comprehensive Review of Treatment

Erythrasma: A Superficial Cutaneous Bacterial Infection Overlooked in Clinical Practice

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