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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Abbreviations
- Trichilemmal cyst (TC) is preferred terminology
- Sebaceous cyst (SC) commonly used but incorrect
- Variant = proliferating trichilemmal tumor (PTT)
- Trichilemmal cyst (TC) is preferred terminology
Synonyms
- PTT also called "pilar" or "turban" tumor
Definitions
- Keratin-containing cyst
- Lined by stratified squamous epithelium
- Keratin-containing cyst
IMAGING
General Features
Imaging Recommendations
CT Findings
MR Findings
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
Selected References
- Abdou AG: Cytologic findings of proliferating trichilemmal tumor (PTT) of scalp. Diagn Cytopathol. 48(1):86-9, 2020
- Strait AM et al: Proliferating pilar tumor: a rare cutaneous entity mimicking breast malignancy on imaging. Breast J. ePub, 2020
- Wollina U et al: Squamous cell carcinoma associated with trichilemmal cyst: a rare collision tumor. Dermatol Ther. e13260, 2020
- Adegun OK et al: Proliferating trichilemmal tumour: diagnostic challenge on core biopsy. BMJ Case Rep. 12(2), 2019
- Friedrich RE et al: Multiple trichilemmal cysts of the scalp. Anticancer Res. 39(8):4253-8, 2019
- He P et al: Trichilemmal cyst: clinical and sonographic features. J Ultrasound Med. 38(1):91-6, 2019
- Kawaguchi M et al: CT and MRI features of scalp lesions. Radiol Med. 124(10):1049-61, 2019
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Abbreviations
- Trichilemmal cyst (TC) is preferred terminology
- Sebaceous cyst (SC) commonly used but incorrect
- Variant = proliferating trichilemmal tumor (PTT)
- Trichilemmal cyst (TC) is preferred terminology
Synonyms
- PTT also called "pilar" or "turban" tumor
Definitions
- Keratin-containing cyst
- Lined by stratified squamous epithelium
- Keratin-containing cyst
IMAGING
General Features
Imaging Recommendations
CT Findings
MR Findings
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
Selected References
- Abdou AG: Cytologic findings of proliferating trichilemmal tumor (PTT) of scalp. Diagn Cytopathol. 48(1):86-9, 2020
- Strait AM et al: Proliferating pilar tumor: a rare cutaneous entity mimicking breast malignancy on imaging. Breast J. ePub, 2020
- Wollina U et al: Squamous cell carcinoma associated with trichilemmal cyst: a rare collision tumor. Dermatol Ther. e13260, 2020
- Adegun OK et al: Proliferating trichilemmal tumour: diagnostic challenge on core biopsy. BMJ Case Rep. 12(2), 2019
- Friedrich RE et al: Multiple trichilemmal cysts of the scalp. Anticancer Res. 39(8):4253-8, 2019
- He P et al: Trichilemmal cyst: clinical and sonographic features. J Ultrasound Med. 38(1):91-6, 2019
- Kawaguchi M et al: CT and MRI features of scalp lesions. Radiol Med. 124(10):1049-61, 2019
