Diffuse hyperplastic oncocytosis of the parotid gland.
Oncocytic tumours rarely affect the major salivary glands, accounting for less than 1% of all salivary-gland tumours. The World Health Organisation classification groups these tumours into three principal types: diffuse oncocytosis, focal adenomatous oncocytic hyperplasia and oncocytoma. Diffuse hyperplastic oncocytosis is the rarest lesion: only six cases have been previously reported in the literature. This condition of putative hyperplastic pathogenesis follows a benign course, whereas oncocytomas may recur after excision. No metastatic dissemination or recurrence of diffuse hyperplastic oncocytosis has been reported. We present and discuss a new case of diffuse hyperplastic oncocytosis of the parotid gland.
Loreti
A
A
Division of Plastic Surgery, 'A. Gemelli' Medical School, Università Cattolica del Sacro Cuore, Policlinico 'A. Gemelli', Rome, Italy.
Sturla
M
M
Gentileschi
S
S
Bracaglia
R
R
Prat
Y
Y
Fadda
G
G
Farallo
E
E
D001707:Biopsy, Needle; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D024862:Oxyphil Cells / Q000473:pathology*; D010306:Parotid Gland / Q000473:pathology*; D010307:Parotid Neoplasms / Q000473:pathology*; D011230:Precancerous Conditions / Q000473:pathology*