Trichilemmoma in continuity with pigmented basal cell carcinoma; with dermatoscopy and dermatopathology

Kaptan, Moayad Al; Kattampallil, Joseph; Rosendahl, Cliff

doi:10.5826/dpc.0502a08

Cited by 9 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…30 In contrast, DT has been described as focal crown vessels with unspecific poorly defined white areas and hyperkeratotic central depression. 29 Therefore, the presence of white structures, a hyperkeratotic central area, and a radial arrangement of peripheral vessels may support a diagnosis of DT. Indeed, dermoscopy is a promising assistive tool for diagnosis of DT.…”

Section: Discussionmentioning

confidence: 99%

“…In a few cases, the dermoscopic features of trichilemmomas have been reported. Based on dermoscopic images, trichilemmomas have been described as keratin masses with perivascular whitish halos, 27 hyperkeratotic central areas with peripheral erythematous radial lines in a red iris-like structure, 28 non-pigmented nodules with peripheral vessels arranged in a radial and centered manner, 29 and linear vessels arranged in a radial manner with surrounding reflective whitish areas, as well as central crusted and hyperkeratotic areas. 30 In contrast, DT has been described as focal crown vessels with unspecific poorly defined white areas and hyperkeratotic central depression.…”

Section: Authorsmentioning

confidence: 99%

See 1 more Smart Citation

Desmoplastic trichilemmoma of the scalp: case report and literature review of immunohistochemical staining features

2019

View full text Add to dashboard Cite

Desmoplastic trichilemmoma (DT) of the scalp is a rare disease. In this report, we describe a 67-year-old man who had a small papule lesion around the hairline of the left scalp for more than 40 years. The lesion had rapidly grown to become a solitary, round, 15-mm neoplasm within 6 months. Histopathological examination showed that the mass was composed of a peripheral layer of columnar cells with nuclear palisading resembling the outer root sheath; the mass was surrounded by a thickened glassy basement membrane. The stroma in the center of the mass displayed solid, hyaline degeneration and an eosinophilic pattern, streaked with epithelial cords or islands. Immunohistochemical evaluation showed diastase-resistant, periodic acid–Schiff-positive desmoplastic stroma at the center, and Ber-EP4-negative tumor cells (CD34-positive focally and Bcl-2-positive at the periphery). The tumor was completely resected, and no recurrence occurred during the follow-up period. In this report, we also summarize immunohistochemical features from previous reports of DT, facilitating differential diagnosis of DT from some invasive skin tumors.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Authorsmentioning

confidence: 99%

Desmoplastic trichilemmoma of the scalp: case report and literature review of immunohistochemical staining features

2019

View full text Add to dashboard Cite

show abstract

“…A few dermatoscopic findings of trichilemmoma and DT are described, including pink structureless areas, radial vessels, crown vessels, shiny white lines, red irislike structures with peripheral radiated red lines, and central hyperkeratotic areas [6][7][8]. Pigmented BCC is the primary differential diagnosis of a pigmented lesion arising in a long-standing NS.…”

Section: Discussionmentioning

confidence: 99%

Pigmented Desmoplastic Trichilemmoma Arising in Nevus Sebaceous: A Potential Mimicker of Pigmented Basal Cell Carcinoma

Alhameedy

Alrobaish

Almarshoud******

et al. 2023

Skin Appendage Disord

View full text Add to dashboard Cite

Introduction: Trichilemmomas are a form of benign adnexal neoplasm with differentiation toward the follicular outer sheath. Nevus sebaceous (NS) of Jadassohn is a congenital malformation characterized as a nonhereditary hamartoma of the adnexal structures of the skin, mainly the pilosebaceous unit. NS represents a fertile field for the development of secondary adnexal neoplasms, commonly benign but occasionally malignant. To our knowledge, one case of a pigmented desmoplastic trichilemmoma (DT) has been reported in the English literature. Case Presentation: We report a case of a 36-year-old male with pigmented DT that developed on long-standing congenital NS, mimicking pigmented basal cell carcinoma (BCC), which was successfully excised with 4-mm margins. Conclusion: Pigmented DT may mimic pigmented BCC on clinical and dermatoscopic examination; therefore, histological evaluation is always recommended to confirm the diagnosis.

show abstract

“…Figure 11. Trichilemmoma dermoscopy (polarized dermoscopy:left picture, unpolarized dermoscopy: right picture) shows a focal, pigmented macular component with converging radial lines, an unpigmented lesion with radially arranged peripheral vessels, and a white area with several centralized vessels 15. …”

mentioning

confidence: 99%

Differences in the diagnosis of sweat gland tumors with other histopathologically similar skin tumors

Maylita Sari,

Arisia Fadila

2023

BDVAJ

View full text Add to dashboard Cite

Sweat gland tumors are still relatively rare compared to other skin tumors. The clinical features of sweat gland tumors are non-specific and are rarely encountered in daily diagnostic practice. This article aims to explain the features of benign sweat gland tumors based on clinical and histopathological features. Many sweat gland tumors have overlapping clinical features with other tumors, whether from other adnexal tumors or even malignant tumors. Fulton et al. divided eccrine and apocrine gland tumors into six groups based on the similarity of the basic histopathological features, which could help clinicians better establish benign sweat gland tumors. The histopathological examination could complement history taking and physical examination to establish benign sweat gland tumors.

show abstract

Trichilemmoma in continuity with pigmented basal cell carcinoma; with dermatoscopy and dermatopathology

Cited by 9 publications

References 12 publications

Desmoplastic trichilemmoma of the scalp: case report and literature review of immunohistochemical staining features

Desmoplastic trichilemmoma of the scalp: case report and literature review of immunohistochemical staining features

Pigmented Desmoplastic Trichilemmoma Arising in Nevus Sebaceous: A Potential Mimicker of Pigmented Basal Cell Carcinoma

Differences in the diagnosis of sweat gland tumors with other histopathologically similar skin tumors

Contact Info

Product

Resources

About