A case of basaloid follicular hamartoma

We report a case of basaloid follicular hamartoma. A 53-year-old female patient presented with a one-year history of widespread papules on the scalp, occasionally accompanied by itching. Dermatological examination revealed numerous light brown papules, sized approximately 1~3 mm in diameter, diffuse...

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Main Authors: REN Xinxin, ZHANG Xinyan, JI Shuangshuang, GUO Ling
Format: Article
Language:zho
Published: editoiral office of Journal of Diagnosis and Therapy on Dermato-venereology 2025-07-01
Series:Pifu-xingbing zhenliaoxue zazhi
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Online Access:http://pfxbzlx.gdvdc.com/EN/10.3969/j.issn.1674-8468.2025.07.010
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author REN Xinxin
ZHANG Xinyan
JI Shuangshuang
GUO Ling
author_facet REN Xinxin
ZHANG Xinyan
JI Shuangshuang
GUO Ling
author_sort REN Xinxin
collection DOAJ
description We report a case of basaloid follicular hamartoma. A 53-year-old female patient presented with a one-year history of widespread papules on the scalp, occasionally accompanied by itching. Dermatological examination revealed numerous light brown papules, sized approximately 1~3 mm in diameter, diffusely distributed across the scalp, with the highest density in the occipital region. Some papules had coalesced. No hypertrichosis or depressions on the palms and soles were observed. Histopathology of the skin lesion revealed irregular proliferation of basaloid cells, forming multiple cell nests composed of basaloid cells embedded within a fibrous matrix. The nests were irregular in shape, with no significant cellular atypia or evident mitotic figures. Peripheral cells were arranged in a palisading pattern, with no retraction spaces between the nests and surrounding connective tissue. Amyloid deposits were observed within the matrix. Immunohistochemistry revealed CD34 positivity in the fibrous stromal cells surrounding the tumor; Bcl-2 expression was limited to a few basal cells at the outermost layer of the lesion. Diagnosis: basaloid follicular hamartoma. The patient did not respond well to electrolysis and cryotherapy with liquid nitrogen, and the rash continued to progress. The patient is still under follow-up.
format Article
id doaj-art-9abf9cd75d5343f2b11c8255c9b3bb17
institution Kabale University
issn 1674-8468
language zho
publishDate 2025-07-01
publisher editoiral office of Journal of Diagnosis and Therapy on Dermato-venereology
record_format Article
series Pifu-xingbing zhenliaoxue zazhi
spelling doaj-art-9abf9cd75d5343f2b11c8255c9b3bb172025-08-20T04:02:09Zzhoeditoiral office of Journal of Diagnosis and Therapy on Dermato-venereologyPifu-xingbing zhenliaoxue zazhi1674-84682025-07-0132753053310.3969/j.issn.1674-8468.2025.07.010A case of basaloid follicular hamartomaREN Xinxin0ZHANG Xinyan1JI Shuangshuang2GUO Ling3Liaocheng People′s Hospital, Liaocheng 252000, ChinaLiaocheng People′s Hospital, Liaocheng 252000, ChinaLiaocheng People′s Hospital, Liaocheng 252000, ChinaLiaocheng People′s Hospital, Liaocheng 252000, ChinaWe report a case of basaloid follicular hamartoma. A 53-year-old female patient presented with a one-year history of widespread papules on the scalp, occasionally accompanied by itching. Dermatological examination revealed numerous light brown papules, sized approximately 1~3 mm in diameter, diffusely distributed across the scalp, with the highest density in the occipital region. Some papules had coalesced. No hypertrichosis or depressions on the palms and soles were observed. Histopathology of the skin lesion revealed irregular proliferation of basaloid cells, forming multiple cell nests composed of basaloid cells embedded within a fibrous matrix. The nests were irregular in shape, with no significant cellular atypia or evident mitotic figures. Peripheral cells were arranged in a palisading pattern, with no retraction spaces between the nests and surrounding connective tissue. Amyloid deposits were observed within the matrix. Immunohistochemistry revealed CD34 positivity in the fibrous stromal cells surrounding the tumor; Bcl-2 expression was limited to a few basal cells at the outermost layer of the lesion. Diagnosis: basaloid follicular hamartoma. The patient did not respond well to electrolysis and cryotherapy with liquid nitrogen, and the rash continued to progress. The patient is still under follow-up.http://pfxbzlx.gdvdc.com/EN/10.3969/j.issn.1674-8468.2025.07.010follicular hamartomabasaloid
spellingShingle REN Xinxin
ZHANG Xinyan
JI Shuangshuang
GUO Ling
A case of basaloid follicular hamartoma
Pifu-xingbing zhenliaoxue zazhi
follicular hamartoma
basaloid
title A case of basaloid follicular hamartoma
title_full A case of basaloid follicular hamartoma
title_fullStr A case of basaloid follicular hamartoma
title_full_unstemmed A case of basaloid follicular hamartoma
title_short A case of basaloid follicular hamartoma
title_sort case of basaloid follicular hamartoma
topic follicular hamartoma
basaloid
url http://pfxbzlx.gdvdc.com/EN/10.3969/j.issn.1674-8468.2025.07.010
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AT guoling acaseofbasaloidfollicularhamartoma
AT renxinxin caseofbasaloidfollicularhamartoma
AT zhangxinyan caseofbasaloidfollicularhamartoma
AT jishuangshuang caseofbasaloidfollicularhamartoma
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