A Simplified Working Classification Proposed for Myxoid Tumors of Oral Cavity.

Dear Editor-in-Chief

Myxoid tumors of the oral cavity encompass a broad spectrum of lesions, primarily neoplastic (1). Significant variations in the biological behavior ranging from completely harmless to malignant neoplasm require an accurate histopathological diagnosis to ensure a proper treatment (2). A considerable overlapexists between clinical and histopathological features of these group of tumors, which often produces a diagnostic difficulty to clinicians and oral pathologists (3). There is no approved working classification for myxoid tumors of the oral cavity in the literature. A simple working classification of myxoid tumors is proposed here (Table 1)

Table 1

A simple working classification for myxoid tumors of oral cavity

S NO	CATEGORY	TUMORS
1	Adipose tissue tumors	MyxolipomaMyxiliposarcoma
2	Neural tumors	Myxoid neurofibromaNeurothakeomaMalignant peripheral nerve sheath tumor
3	Fibroblastic tumors	MyxofibromaNodular fasciitisMyxofibrosarcoma
4	Chondroblastic tumors	Ectomesenchymal chondromyxoid tumorMyxoid chondrosarcoma
5	Muscle tumors	Myxoid leiomyosarcoma
6	Odontogenic tumors	Odontogenic myxoma
7	Miscellaneous	Soft tissue myxomaOssifying fibromyxoid tumorMalignant ossifying fibromyxoid tumor

This classification is based on the predominance of the areas of myxoid degeneration in histopathology of the tumors of oral cavity. This classification includes adipose, neural, fibroblastic, chondroblastic, muscle, odontogenic and miscellaneous tumors. This classification wouldprovide a better insight into the histopathology of myxoid tumors of oral cavity and wouldbe useful for oral pathologists and cytopathologists.