Case report observes multiple post-traumatic pleomorphic adenomas in a 59-year-old patient, highlighting updated diagnostic criteria for trauma-induced neoplasia.
Key Points
To present a case of two distinct post-traumatic pleomorphic adenomas and propose updated diagnostic criteria for evaluating trauma-tumor causation.
Clinical and histopathologic evaluation of a 59-year-old female presenting with a scalp lesion one year after workplace head trauma, with a past surgical history of a parotidectomy following jaw trauma nine years prior.
Histopathologic analysis identified the excised scalp lesion as a benign mixed tumor of the skin, distinct from the prior parotid pleomorphic adenoma.
Differences in histopathology confirmed that the scalp and parotid lesions were separate primary tumors arising after distinct traumatic events.
An updated, comprehensive set of objective criteria was developed to assess trauma-tumor causation in medicolegal and clinical settings.