Primary Parotid Merkel Type Small Cell Neuroendocrine Carcinoma with Oligometastasis to the Brain and Adrenal Gland: Case Report and Review of Literature.
Head Neck Pathol
; 15(1): 311-318, 2021 Mar.
Article
in En
| MEDLINE
| ID: mdl-32350808
ABSTRACT
Oligometastatic disease is a hypothesized intermediate stage of disease between localized and widespread metastatic cancer. Localized treatment of oligometastatic lesions may offer survival advantages in addition to systemic treatment. In this case report, we describe a patient who presented with small cell neuroendocrine carcinoma "Merkel type" (SNECM) of the parotid gland which had metastasized to the brain and adrenal gland. He was treated with chemotherapy followed by stereotactic radiotherapy and volumetric modulated arc therapy for oligometastasis. He maintains good functional status with low burden of disease at 20-months after diagnosis. SNECM is a rare and aggressive parotid cancer with immunohistochemical and morphologic similarities to Merkel cell carcinoma (MCC). There are only 44 cases of parotid SNECM in the English literature. This is the first case to describe management of oligometastatic SNECM and we review literature on management of both SNECM and metastatic MCC.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brain Neoplasms
/
Parotid Neoplasms
/
Carcinoma, Merkel Cell
/
Adrenal Gland Neoplasms
/
Carcinoma, Small Cell
Limits:
Aged
/
Humans
/
Male
Language:
En
Journal:
Head Neck Pathol
Journal subject:
NEOPLASIAS
/
PATOLOGIA
Year:
2021
Document type:
Article
Affiliation country:
Canada