Traumatic neuroma in mastectomy scar

Abstract

Rationale: Traumatic neuroma is a reparative proliferative response of the nerve after trauma or surgery, which rarely occurs in the breast. However, it must be distinguished from tumor recurrence. Patient concerns: A 78-year-old woman underwent left-sided modified radical mastectomy for invasive carcinoma, 7 years before this case. Two painless nodules near the mastectomy scar were discovered in regular follow-up physical examination. A 62-year-old woman had received right-sided modified radical mastectomy for intraductal carcinoma, 4 years before this case. An asymptomatic nodule near the mastectomy scar was detected during follow-up ultrasound (US) examination. Diagnosis: The lesions in both patients were diagnosed as traumatic neuroma. Interventions: The first patient underwent excisional biopsy. The second patient underwent US guided core-needle aspiration, followed by conservative therapy. Outcomes: Neither patient complained of any discomfort, nor both exhibited normal physical and US findings during follow-up examinations. Lessons: Newly discovered nodules with the benign imaging features near the mastectomy site of a patient, especially with the tail sign, traumatic neuromas should be taken into consideration. Routine US examination is important for follow-up of breast cancer patients who have undergone mastectomy.

Traumatic Neuroma in the External Auditory Canal

“…The prognosis of TN is good, and recurrence is rare, provided that complete excision is performed. 10 We presented an extremely rare TM of the EAC canal. Although TN of the EAC is rare, it should be included in the differential diagnosis of benign tumorous lesions in the EAC.…”

“…Although our patient was asymptomatic, an excisional biopsy was performed for a definitive diagnosis because the tumor presented with bony erosion of the EAC wall on computed tomography. The prognosis of TN is good, and recurrence is rare, provided that complete excision is performed 10 …”