Pityriasis versicolor atrophicans

Cravo, Mariana; Brinca, Ana; Robalo-Cordeiro, Margarida

doi:10.1684/ejd.2012.1661

Cited by 8 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lesions in the axillae and groins, and on the thighs and genitalia occur, and extension down the forearms on to the backs of the hands; these atypical forms of pityriasis versicolor may be associated with oval yeast forms seen in direct microscopy. Another rare but well documented variant is one where there is marked atrophy or anetoderma-like change in the skin that follow infection (Tellechea et al, 2012). Pityriasis versicolor is a chronic infection if left untreated.…”

Section: Clinical Presentationmentioning

confidence: 99%

Malassezia-Associated Skin Diseases, the Use of Diagnostics and Treatment

Saunte

Gaitanis

Hay

2020

Front. Cell. Infect. Microbiol.

139

110

View full text Add to dashboard Cite

Yeasts of the genus, Malassezia, formerly known as Pityrosporum, are lipophilic yeasts, which are a part of the normal skin flora (microbiome). Malassezia colonize the human skin after birth and must therefore, as commensals, be normally tolerated by the human immune system. The Malassezia yeasts also have a pathogenic potential where they can, under appropriate conditions, invade the stratum corneum and interact with the host immune system, both directly but also through chemical mediators. The species distribution on the skin and the pathogenetic potential of the yeast varies between different Malassezia related diseases such as head and neck dermatitis, seborrheic dermatitis, pityriasis versicolor, and Malassezia folliculitis. The diagnostic methods used to confirm the presence of Malassezia yeasts include direct microcopy, culture based methods (often a combination of morphological features of the isolate combined with biochemical test), molecular based methods such as Polymerase Chain Reaction techniques, and Matrix Assisted Laser Desorption/Ionization-Time Of Flight mass spectrometry and the chemical imprint method Raman spectroscopy. Skin diseases caused by Malassezia are usually treated with antifungal therapy and if there are associated inflammatory skin mechanisms this is often supplemented by anti-inflammatory therapy. The aim of this paper is to provide an overview of Malassezia related skin disease, diagnostic methods and treatment options.

show abstract

Section: Clinical Presentationmentioning

confidence: 99%

Malassezia-Associated Skin Diseases, the Use of Diagnostics and Treatment

Saunte

Gaitanis

Hay

2020

Front. Cell. Infect. Microbiol.

139

110

View full text Add to dashboard Cite

show abstract

“…Typical cases of pityriasis versicolor are seldom biopsied; however, rare variants and unusual presentations are more likely to be biopsied, for example the atrophic variant (pityriasis versicolor atrophicans) . In spite of their unusual clinical presentation, these cases nonetheless demonstrate the typical histopathological picture with the presence of spores and hyphae in the stratum corneum.…”

Section: Infectious Elements In the Stratum Corneummentioning

confidence: 99%

“…In spite of their unusual clinical presentation, these cases nonetheless demonstrate the typical histopathological picture with the presence of spores and hyphae in the stratum corneum. Surprisingly, abnormalities of the elastic fibers in the dermis are not usually found, and rete‐ridge effacement is sometimes the only additional histological finding …”

Section: Infectious Elements In the Stratum Corneummentioning

confidence: 99%

“…Surprisingly, abnormalities of the elastic fibers in the dermis are not usually found, and rete-ridge effacement is sometimes the only additional histological finding. 87,88 Bacterial Erythrasma Erythrasma is a superficial bacterial infection of the skin caused by Corynebacterium minutissimum, a Gram-positive bacillus. It presents with orange to red-brown, well demarcated patches with a slightly scaly surface, with a predilection for large body folds like the inguinal and axillary areas, and with an increased incidence in obese and diabetic patients.…”

Section: Pityriasis Versicolor (Tinea Versicolor)mentioning

confidence: 99%

See 1 more Smart Citation

‘Hints’ in the horn: diagnostic clues in the stratum corneum

et al. 2017

View full text Add to dashboard Cite

Review'Hints' in the horn: diagnostic clues in the stratum corneumThe stratum corneum or horny layer is the uppermost layer of the epidermis, and is mainly responsible for the skin's barrier function. In spite of its complexity at the ultrastructural and molecular level, the features accessible to visualization on conventional histology are relatively limited. Nevertheless, knowledge of subtle clues that one may observe in the stratum corneum can prove useful in a wide range of situations in dermatopathology. We herein review a selection of common and rare entities in which the horny layer may reveal significantly important hints for the diagnosis. These clues include parakeratosis and its different patterns (focal, confluent, alternating, associated with spongiosis, epidermal hyperplasia or lichenoid changes), subcorneal acantholysis, infectious organisms in the stratum corneum (including fungal, bacterial and parasitic), thickening or thinning of the stratum corneum and the presence of different kinds of pigment. Even when normal, the horny layer may prove to be useful when seen in association with severe epidermal damage, a combination of features testifying to the acute nature of the underlying pathological process.Keywords: histopathology, hyperkeratosis, hypokeratosis, parakeratosis, stratum corneum Cardoso JC, Veraitch O, Gianotti R, Ferrara G, Tomasini CF, Singh M, Zalaudek I, Stefanato CM. 'Hints' in the horn: diagnostic clues in the stratum corneum.

show abstract

“…Although atrophoderma elastolyticum discretum has similar histopathological features of thickening of collagen fibers in the reticular dermis and loss of elastic tissue fibers in papillary and reticular dermis, the clinical appearance is quite different with 3–6 cm, depressed, pink-brown colored, atrophic plaques [48]. In atrophying tinea versicolor, epidermal colonization with hyphae or spores of Pityrosporum is seen histopathologically [49]. The small porcelain white, shiny, round macules of lichen sclerosus et atrophicus may resemble lesions of CMA clinically, but lichen sclerosus et atrophicus has different histopathological features [50].…”

Section: Unclassified Disordersmentioning

confidence: 99%

New Described Dermatological Disorders

Gönül

Cemil

Keseroglu

et al. 2014

BioMed Research International

View full text Add to dashboard Cite

Many advances in dermatology have been made in recent years. In the present review article, newly described disorders from the last six years are presented in detail. We divided these reports into different sections, including syndromes, autoinflammatory diseases, tumors, and unclassified disease. Syndromes included are “circumferential skin creases Kunze type” and “unusual type of pachyonychia congenita or a new syndrome”; autoinflammatory diseases include “chronic atypical neutrophilic dermatosis with lipodystrophy and elevated temperature (CANDLE) syndrome,” “pyoderma gangrenosum, acne, and hidradenitis suppurativa (PASH) syndrome,” and “pyogenic arthritis, pyoderma gangrenosum, acne, and hidradenitis suppurativa (PAPASH) syndrome”; tumors include “acquired reactive digital fibroma,” “onychocytic matricoma and onychocytic carcinoma,” “infundibulocystic nail bed squamous cell carcinoma,” and “acral histiocytic nodules”; unclassified disorders include “saurian papulosis,” “symmetrical acrokeratoderma,” “confetti-like macular atrophy,” and “skin spicules,” “erythema papulosa semicircularis recidivans.”

show abstract

Pityriasis versicolor atrophicans

Cited by 8 publications

References 0 publications

Malassezia-Associated Skin Diseases, the Use of Diagnostics and Treatment

Malassezia-Associated Skin Diseases, the Use of Diagnostics and Treatment

‘Hints’ in the horn: diagnostic clues in the stratum corneum

New Described Dermatological Disorders

Contact Info

Product

Resources

About