Korean J Otolaryngol-Head Neck Surg.  2002 Jul;45(7):719-721.

A Case of Basaloid Squamous Cell Carcinoma Extended to the Temporal Bone

• Lee DY
• Do NY
• Park SY

Abstract

Basaloid squamous cell carcinoma (BSCC), an uncommon tumor with predilection for the upper aerodigestive tract, is a distinct variant of squamous cell carcinoma, because of its unique histological features and ominous clinical behavior. Basaloid squamous cell carcinoma is a high-grade variant of squamous cell carcinoma. Reports subsequent to its initial description in 1986 by Wain et al. have confirmed that the head and neck region is the most frequently involved region, with majority of the cases arising in the supraglottic larynx, hypopharynx, tonsil and base of tongue. Other head and neck sites include the palate, buccal cavity, floor of mouth, nasopharynx, trachea, and sinonasal tract. BSCC is not limited to the head and neck region but has also been described in the esophagus, lung, thymus, anus and cervix among other sites. We experienced and treated a case of BSCC extended to the temporal bone with characteristic histopathologic and immunologic features. Therefore, we report here the rare case of BSCC invading the temporal bone with literature.

Keyword

Basaloid squamous cell carcinoma; Temporal bone

MeSH Terms

Anal Canal
Carcinoma, Squamous Cell*
Cervix Uteri
Esophagus
Female
Head
Hypopharynx
Larynx
Lung
Mouth Floor
Nasopharynx
Neck
Palate
Palatine Tonsil
Temporal Bone*
Thymus Gland
Tongue
Trachea