Bullous pilomatricoma: A report of clinical and pathologic findings and review of dermal bullous disorders

• Published in: Journal of cutaneous medicine and surgery Vol. 5; no. 5; pp. 394 - 396
• Main Authors: WEICHERT, Gabriele E, BUSH, Kevin L, CRAWFORD, Richard I
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Hamilton, ON Decker 01.09.2001; SAGE PUBLICATIONS, INC
• Subjects: Adult; Biological and medical sciences; Dermatology; Female; Hair Diseases - pathology; Humans; Medical sciences; Pilomatrixoma - pathology; Pregnancy; Pregnancy Complications, Neoplastic - pathology; Skin Neoplasms - pathology; Tumors of the skin and soft tissue. Premalignant lesions; Case study; Human; Pathology; Symptomatology; Skin disease; Bubble; Skin; Benign calcifying epithelioma of Malherbe; Benign neoplasm
• ISSN: 1203-4754; 1615-7109
• DOI: 10.1007/s10227-001-0007-2

Pilomatricoma is a common benign adnexal tumor differentiating toward elements of the hair matrix and shaft. It typically presents as a solitary, deep, dermal nodule. We describe a case of a pilomatricoma with the unusual feature of a thick-walled dermal bulla overlying the tumor. We describe a case of bullous pilomatricoma and discuss the potential etiology of the bullous feature of the lesion. This article includes a case report and a literature review. Bullous pilomatricoma has rarely been described. A common pathological feature in this type of pilomatricoma is the presence of dilated lymphatics. Bullous morphea associated with dermal lymphatic dilation has also been described. In both bullous pilomatricoma and morphea, it is possible that individual pathological features of the lesion lead to obstruction and congestion of the dermal lymphatics thereby inducing enough dilation and edema to form a dermal bulla.