Alopecia-associated pseudocyst of the scalp

Eisenberg, Eric L.

doi:10.1016/j.jaad.2011.09.028

Cited by 15 publications

(15 citation statements)

References 4 publications

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“…The mean disease duration was longer in patients with than without pseudocyst formation in this study (median, 10.3 and 6.4 months, respectively), which might partially explain the inconsistency in the formation of pseudocysts. PCS was reported to occur between the top and forehead area of the scalp [1], whereas other studies showed lesions on the vertex and upper occipital area [2,5,7]. The most commonly involved site in this study was similar to that of AANS rather than PCS.…”

Section: Discussionmentioning

confidence: 62%

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Alopecic and Aseptic Nodules of the Scalp/Pseudocyst of the Scalp: Clinicopathological and Therapeutic Analyses in 11 Korean Patients

Seol

Kim²,

Park³

et al. 2015

Dermatology

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Background: Alopecic and aseptic nodule of the scalp (AANS) is a rare disease entity first reported in 1992 as pseudocyst of the scalp (PCS). Controversy exists regarding the histopathology and etiology of reported cases. Objective: We performed this study to analyze the clinical and histopathologic features of AANS/PCS in Korean patients. Methods: A retrospective review of medical records from 2008 to 2013 at Inje University Busan Paik Hospital was performed. Results: Eleven patients were enrolled. All patients were male, and their mean age was 21.6 years. Most patients had a solitary nodule (10/11) located predominantly on the vertex. The mean nodule size was 20 mm. Inflammatory cell infiltration in the deep dermis was a histologic feature of AANS/PCS. Eight patients showed granulomatous infiltration. All patients were treated with short-term antibiotics and intralesional steroid injection. Conclusion: Our results suggest that dermatologists should consider AANS when diagnosing an alopecic nodule on the scalp.

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Section: Discussionmentioning

confidence: 62%

“…Additional clues to the pathogenesis of this disease entity were not found in the present study. Further investigations should be performed, such as chemical analysis of material following puncture and a larger number of biopsies performed at the onset of the lesion [7]. …”

Section: Discussionmentioning

confidence: 99%

Alopecic and Aseptic Nodules of the Scalp/Pseudocyst of the Scalp: Clinicopathological and Therapeutic Analyses in 11 Korean Patients

Seol

Kim²,

Park³

et al. 2015

Dermatology

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“…They are located predominantly at the level of the vertex followed by occipital and parietal regions, although any area of the scalp can be affected. They are typically an isolated event but in some cases tend to recur [6]. …”

Section: Discussionmentioning

confidence: 99%

“…AANS respond well to treatment with doxycycline 100 mg per day with no established duration, usually for 1-3 months [5,7], intralesional corticosteroids [6,7], or drainage/aspiration of the lesion as summarized in Table 1 [3,7]. Spontaneous regression has been reported; thus, surgical excision is not necessary.…”

Section: Discussionmentioning

confidence: 99%

“…The first cases in Western populations were described in France by Chevallier [3] in 1998, who called them “non-infectious abscesses and balding scalp.” It was not until 2009, when Abdennader et al [4,5] introduced the name “aseptic and alopecic scalp nodules,” because they did not find the cystic cavities in all of their cases as the Japanese did. To this date, there are only 86 published cases (summarized in Table 1), with only one report of cases from North America [6] and none from South America.…”

Section: Introductionmentioning

confidence: 99%

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Alopecic and Aseptic Nodules of the Scalp: First Report in South America and Second in America

Fischer-Levancini

Gompertz

Guglielmetti

et al. 2017

Skin Appendage Disord

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Alopecic and aseptic nodules of the scalp, also named pseudocysts of the scalp, are a relatively new, little-known, and for sure underdiagnosed disease. It affects mostly young men and is characterized by a solitary or a few dome-shaped nodules accompanied by nonscarring alopecia, deep inflammatory infiltration in the skin biopsy specimen, and, in most cases, granulomas. It has a good response to doxycycline, intralesional corticosteroids, or drainage/aspiration of the lesion. We present a case report and a summary of the published cases.

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Alopecic and aseptic nodules of the scalp: A new case with a systematic review of the literature

Bellinato

Maurelli

Colato

et al. 2021

Clinical Case Reports

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Alopecia-associated pseudocyst of the scalp

Cited by 15 publications

References 4 publications

Alopecic and Aseptic Nodules of the Scalp/Pseudocyst of the Scalp: Clinicopathological and Therapeutic Analyses in 11 Korean Patients

Alopecic and Aseptic Nodules of the Scalp/Pseudocyst of the Scalp: Clinicopathological and Therapeutic Analyses in 11 Korean Patients

Alopecic and Aseptic Nodules of the Scalp: First Report in South America and Second in America

Alopecic and aseptic nodules of the scalp: A new case with a systematic review of the literature

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