Intrafollicular mucin deposits in Pityrosporum folliculitis

Sina, Bahram; Kauffman, C. Lisa; Samorodin, C. S.

doi:10.1016/0190-9622(95)91481-1

Cited by 26 publications

(14 citation statements)

References 5 publications

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“…49 The inflammatory response may be a result, in part, of the ability of the Malassezia yeasts to hydrolyze triglycerides into free fatty acids. 84,[88][89][90] The hair follicles themselves also have a characteristic appearance; they tend to be dilated and distended and are often full of keratinous material. 83 It has also been suggested that the overgrowth of the yeasts is a secondary occurrence, permitted by the occlusion of the follicle.…”

Section: Malassezia (Pityrosporum) Folliculitismentioning

confidence: 98%

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Skin diseases associated with Malassezia species

Gupta

Batra

Bluhm

et al. 2004

Journal of the American Academy of Dermatology

441

359

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Section: Malassezia (Pityrosporum) Folliculitismentioning

confidence: 98%

“…[86][87][88] Spheric and budding yeast cells have been demonstrated in histopathology by methanimine silvere and periodic acid-Schiffestained sections from biopsy specimens. 84,87 Also, circulating IgG antibodies against P ovale are present in high titres.…”

Section: Malassezia (Pityrosporum) Folliculitismentioning

confidence: 99%

Skin diseases associated with Malassezia species

Gupta

Batra

Bluhm

et al. 2004

Journal of the American Academy of Dermatology

441

359

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“…In most cases where the follicle remains intact, the infiltrate has mainly been reported to consist of lymphocytes (59,74,131,149,158,460,483). However, in cases where the follicle had ruptured, the infiltrate was more extensive and varied, consisting of lymphocytes (340,403), neutrophils (142,177,199,340,403,450,483), macrophages (340,403,483), eosinophils (142,340), or plasma cells (340). Therefore, the extent of the infiltrate seems to be a reflection of whether the follicle had ruptured.…”

Section: Malassezia Folliculitismentioning

confidence: 99%

Immunology of Diseases Associated withMalasseziaSpecies

2002

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SUMMARY Malassezia species are members of the human cutaneous commensal flora, in addition to causing a wide range of cutaneous and systemic diseases in suitably predisposed individuals. Studies examining cellular and humoral immune responses specific to Malassezia species in patients with Malassezia-associated diseases and healthy controls have generally been unable to define significant differences in their immune response. The use of varied antigenic preparations and strains from different Malassezia classifications may partly be responsible for this, although these problems can now be overcome by using techniques based on recent work defining some important antigens and also a new taxonomy for the genus. The finding that the genus Malassezia is immunomodulatory is important in understanding its ability to cause disease. Stimulation of the reticuloendothelial system and activation of the complement cascade contrasts with its ability to suppress cytokine release and downregulate phagocytic uptake and killing. The lipid-rich layer around the yeast appears to be pivotal in this alteration of phenotype. Defining the nonspecific immune response to Malassezia species and the way in which the organisms modulate it may well be the key to understanding how Malassezia species can exist as both commensals and pathogens.

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“…To our knowledge, there are 2 cases of intrafollicular mucin deposit associated with folliculitis [6, 7]. One of them [6]is referred to a Pityrosporum folliculitis in an immunocompetent patient, and the other one reported by Basarab and Jones [7]describes an immunocompetent lady with Ofuji’s disease and FM.…”

Section: Discussionmentioning

confidence: 99%

“…One of them [6]is referred to a Pityrosporum folliculitis in an immunocompetent patient, and the other one reported by Basarab and Jones [7]describes an immunocompetent lady with Ofuji’s disease and FM.…”

Section: Discussionmentioning

confidence: 99%

HIV-Associated Eosinophilic Folliculitis and Follicular Mucinosis

et al. 1998

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The term HIV-associated eosinophilic folliculitis (EF) designates an idiopathic dermatitis that appears in HIV-infected patients with different clinical manifestations but with a distinctive histological feature characterized by a predominantly eosinophilic infiltrate in the follicular infundibula. On the other side, follicular mucinosis (FM) is a reaction pattern in the follicular epithelium, characterized by a mucinous degeneration of the outer sheath of follicles and sebaceous glands. It has been described in association with a variety of unrelated conditions. We report 2 HIV-infected patients with a pruritic papular eruption. Histopathological study revealed the coexistence of EF and FM. To our knowledge, this is the first report that describes this association. The possible relationship between these two entities is discussed.

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Intrafollicular mucin deposits in Pityrosporum folliculitis

Cited by 26 publications

References 5 publications

Skin diseases associated with Malassezia species

Skin diseases associated with Malassezia species

Immunology of Diseases Associated withMalasseziaSpecies

HIV-Associated Eosinophilic Folliculitis and Follicular Mucinosis

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