A Case of a Giant Trichilemmal Cyst on the Forehead
Trichilemmal cysts are the most common benign subcutaneous cysts on the scalp. Approximately 90% of trichilemmal cysts appear on the scalp and have trichilemmal keratinization without a granular layer visible on pathological examination. In addition, proliferating trichilemmal tumors, which occur in...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Japan Society of Plastic and Reconstructive Surgery
2024-01-01
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| Series: | Journal of Plastic and Reconstructive Surgery |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jprs/3/1/3_2022-0044/_pdf/-char/en |
| _version_ | 1797337380681678848 |
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| author | Nariaki Takamura Kenichi Amo Yu Yusa Yusuke Takezawa |
| author_facet | Nariaki Takamura Kenichi Amo Yu Yusa Yusuke Takezawa |
| author_sort | Nariaki Takamura |
| collection | DOAJ |
| description | Trichilemmal cysts are the most common benign subcutaneous cysts on the scalp. Approximately 90% of trichilemmal cysts appear on the scalp and have trichilemmal keratinization without a granular layer visible on pathological examination. In addition, proliferating trichilemmal tumors, which occur in 2% of trichilemmal cysts, show local recurrence and ulceration, making them highly locally aggressive and requiring careful differentiation. We report the case of a 56-year-old man with a giant trichilemmal cyst on his forehead. After computed tomography and magnetic resonance imaging, a subcutaneous cyst was suspected and excised, and a pathological diagnosis of trichilemmal cyst was established. This was a rare case as the trichilemmal cyst was not located on the scalp, the most common site, but on the forehead area, and it was exceedingly large, with a maximum diameter of 9 cm. |
| first_indexed | 2024-03-08T09:09:43Z |
| format | Article |
| id | doaj.art-cd7e0dead3454c72836bc3313e8950ed |
| institution | Directory Open Access Journal |
| issn | 2436-259X |
| language | English |
| last_indexed | 2024-03-08T09:09:43Z |
| publishDate | 2024-01-01 |
| publisher | Japan Society of Plastic and Reconstructive Surgery |
| record_format | Article |
| series | Journal of Plastic and Reconstructive Surgery |
| spelling | doaj.art-cd7e0dead3454c72836bc3313e8950ed2024-02-01T00:39:27ZengJapan Society of Plastic and Reconstructive SurgeryJournal of Plastic and Reconstructive Surgery2436-259X2024-01-013121252022-0044A Case of a Giant Trichilemmal Cyst on the ForeheadNariaki Takamura0Kenichi Amo1Yu Yusa2Yusuke Takezawa3Department of Plastic and Reconstructive Surgery, Japanese Red Cross Ishinomaki HospitalDepartment of Plastic and Reconstructive Surgery, Japanese Red Cross Ishinomaki HospitalDepartment of Plastic and Reconstructive Surgery, Tohoku University HospitalDepartment of Plastic and Reconstructive Surgery, Japanese Red Cross Ishinomaki HospitalTrichilemmal cysts are the most common benign subcutaneous cysts on the scalp. Approximately 90% of trichilemmal cysts appear on the scalp and have trichilemmal keratinization without a granular layer visible on pathological examination. In addition, proliferating trichilemmal tumors, which occur in 2% of trichilemmal cysts, show local recurrence and ulceration, making them highly locally aggressive and requiring careful differentiation. We report the case of a 56-year-old man with a giant trichilemmal cyst on his forehead. After computed tomography and magnetic resonance imaging, a subcutaneous cyst was suspected and excised, and a pathological diagnosis of trichilemmal cyst was established. This was a rare case as the trichilemmal cyst was not located on the scalp, the most common site, but on the forehead area, and it was exceedingly large, with a maximum diameter of 9 cm.https://www.jstage.jst.go.jp/article/jprs/3/1/3_2022-0044/_pdf/-char/entrichilemmal cystproliferating trichilemmal cystepidermal cyst |
| spellingShingle | Nariaki Takamura Kenichi Amo Yu Yusa Yusuke Takezawa A Case of a Giant Trichilemmal Cyst on the Forehead Journal of Plastic and Reconstructive Surgery trichilemmal cyst proliferating trichilemmal cyst epidermal cyst |
| title | A Case of a Giant Trichilemmal Cyst on the Forehead |
| title_full | A Case of a Giant Trichilemmal Cyst on the Forehead |
| title_fullStr | A Case of a Giant Trichilemmal Cyst on the Forehead |
| title_full_unstemmed | A Case of a Giant Trichilemmal Cyst on the Forehead |
| title_short | A Case of a Giant Trichilemmal Cyst on the Forehead |
| title_sort | case of a giant trichilemmal cyst on the forehead |
| topic | trichilemmal cyst proliferating trichilemmal cyst epidermal cyst |
| url | https://www.jstage.jst.go.jp/article/jprs/3/1/3_2022-0044/_pdf/-char/en |
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