A 47-year-old woman presented with a nodular lesion in the left retroauricular area. The lesion was enucleated and a diagnosis of malignant pilomatricoma was made. This was treated by wide excision and no residual tumour was found. The patient remained disease-free at the 18 months follow-up.
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http://dx.doi.org/10.1080/028443102753575310 | DOI Listing |
Arch Plast Surg
January 2025
Department of Pathology, Medical School of Jeonbuk National University, Jeonju, Republic of Korea.
Malignant pilomatricoma, an extremely rare tumor arising from hair follicles, most commonly occurs on the head, neck, and back. This tumor exhibits several noteworthy characteristics. First, it frequently recurs if it is incompletely excised and can occasionally metastasize to the lungs, bones, and lymph nodes.
View Article and Find Full Text PDFHum Vaccin Immunother
December 2025
Center for Clinical Evaluation of Vaccines, Chaoyang District Center for Disease Control and Prevention, Beijing, China.
We report and analyze a case of pilomatricoma in an adolescent after receiving recombinant hepatitis B vaccine (CHO cell) in Chaoyang District of Beijing and to evaluate the causality between the disease and vaccination. Based on the professional branch of this case, we organized a seminar and we invited specialists in vaccinology, epidemiology, dermatology, infectiology, and immunology to participate in the conference. Specialists evaluated the relevance and causality between the vaccination and disease.
View Article and Find Full Text PDFArch Dermatol Res
January 2025
Premier Dermatology, Ashburn, VA, USA.
Pilomatrix carcinoma (PC) is a rare malignant adnexal tumor originating from follicular matrix cells primarily impacting Caucasian males. This review provides a comprehensive analysis of scientific literature on PC through an exploration of 206 cases reported between 1980 and 2024. We discuss the epidemiology, clinical presentation, histopathology, and diagnostic challenges of PC, and explore various treatment methods for this rare malignancy as well as their associated outcomes.
View Article and Find Full Text PDFSkinmed
January 2025
Dermatology Department, Miguel Servet Hospital, IIS Aragon, Zaragoza University, Zaragoza, Spain.
A 63-year-old man, with no past medical history, presented with an asymptomatic, progressively evolving polypoid lesion for 2 years in the left ciliary region. Physical examination revealed an exophytic tumor lesion of firm consistency and lobulated surface, with regular and well-defined borders. It measured 2 cm in diameter, and had a brownish-violet coloration with whitish areas (Figure 1).
View Article and Find Full Text PDFInt J Dermatol
December 2024
Division of Dermatology, Baylor University Medical Center, Dallas, Texas, USA.
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