Malignant mixed tumour arising from minor salivary gland tissue of the right parapharyngeal space with metastasis to the scalp.
A case of malignant mixed tumour arising from minor salivary gland tissue in the right parapharyngeal space with metastasis to the scalp is described. Both the clinical presentation and the histological picture were unusual. The simultaneous discovery of the primary parapharyngeal tumour and its scalp metastasis, the relatively young age of the patient (43 years-old), the origin of the tumour in minor salivary gland tissue, and the presence of a benign stromal component in the metastasis are features not commonly described in the three entities covered by the term "malignant mixed tumour". We believe this case represents a distinct variant, whose behaviour and progression have not been previously well documented.
Tan
P H
PH
Department of Pathology, Singapore General Hospital.
Chew
C T
CT
Cheah
E S
ES
D008949:Adenoma, Pleomorphic / Q000473:pathology* / Q000556:secondary; D000328:Adult; D005260:Female; D006801:Humans; D012468:Salivary Gland Neoplasms / Q000473:pathology* / Q000556:secondary; D012535:Scalp / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*