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Auricular Malignant Proliferating Trichilemmal Tumor: A Case Report.

Enhui Zhou¹, Xiaocheng Xue¹, Xing Liu¹

¹Department of Otorhinolaryngology, Pudong New Area Gongli Hospital, Shanghai, China.

Ear, Nose, & Throat Journal

|September 20, 2022

Summary

This case report details a rare auricular malignant proliferating trichilemmal tumor (MPTT) in a 65-year-old male. Surgical excision was successful, with no recurrence observed after 14 months, highlighting effective treatment strategies.

Keywords:

auricular malignant proliferating trichilemmal tumor

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Area of Science:

Dermatology
Surgical Oncology
Pathology

Background:

Malignant proliferating trichilemmal tumor (MPTT) is a rare dermal adnexal neoplasm.
MPTTs originate from the external root sheath of hair follicles.
Auricular MPTT is exceptionally uncommon.

Purpose of the Study:

To report a rare case of auricular MPTT.
To detail the surgical strategy and outcomes.
To review clinicopathological features and relevant literature.

Main Methods:

Histopathological examination including abrupt keratinization, cytological atypia, abnormal mitoses, and infiltrating margins.
Surgical excision of the auricular mass.
14-month follow-up for recurrence.

Main Results:

A 65-year-old male presented with a 30 × 20 × 12 mm bleeding mass on the right auricle.
Histopathology confirmed MPTT.
Post-surgical excision, no recurrence was observed for 14 months.

Conclusions:

MPTT is a rare tumor requiring accurate histopathological diagnosis.
Extensive surgical excision appears to be an effective therapeutic strategy.
Further literature review aids in understanding differential diagnoses and treatment.