Table 2.

Cases of Endocrine mucin-producing sweat gland carcinoma (EMPSGC) with metastases

Author, year	Present case	Froehlich et al. (2020) [5]	Hadi et al. (2021) [4]	Shah et al. (2021) [18]
Age (years)/ sex	78/Male	71/Female	66/Male	60/Male
Primary site	Upper eyelid	Upper eyelid	Upper eyelid	Scrotum
Histopathology diagnosis of primary tumor	Poorly differentiated carcinoma	Unclear	Hidradenoma with atypia	EMPSGC
Treatment	Excision with negative margins	Excision	Excision with negative margins	Excision biopsy, radiotherapy and palliative chemotherapy
Time interval to local recurrences	No local recurrence	10 years	First: 7 years Second: 9 years	Not applicable
Time interval to metastasis from primary diagnosis	9 years	11 years	9 years	Synchronous
Sites of metastasis	Ipsilateral parotid	Ipsilateral parotid	Ipsilateral parotid, 8th rib	Lymph nodes, pancreas, bone on PET scan
Specimen on which EMPSGC was diagnosed	Parotidectomy, with review of histology of primary tumor	Incision biopsy of recurrence	Parotidectomy, with review of histology of primary tumor	Excision biopsy of primary