A

Fig. 1.09 Verrucous carcinoma. A Typical exophytic papillary growth. B High degree of differentiation.

Fig. 1.09 Verrucous carcinoma. A Typical exophytic papillary growth. B High degree of differentiation.

Fig. 1.10 Spindle cell carcinoma. A Typical polypoid appearance. B Transition between conventional and spindle cells areas. C Malignant fibrous histiocytoma-like area in a spindle cell carcinoma.

tous component may be metaplastic. However, a recent molecular analysis of a single case of a spindle cell carcinoma showed divergent genetic alterations in the carcinomatous and in the sarcoma-tous tumour component suggesting two independent malignant cell clones {823}.

Basaloid squamous cell carcinoma (ICD-O 8083/3)

This rare but distinct variant of oesophageal SCC {1961} appears to be identical to the basaloid squamous cell carcinomas of the upper aerodigestive tract {109}. Histologically, it is composed of closely packed cells with hyperchromat-ic nuclei and scant basophilic cytoplasm, which show a solid growth pattern, small gland-like spaces and foci of comedo-type necrosis. Basaloid squa-mous cell carcinomas are associated

Ett:

Was this article helpful?

0 0

Post a comment