Table III.

Postoperative outcomes according to surgical complexity.

Histological type	Number of procedures	Immediate temporary facial nerve weakness	Permanent facial nerve weakness	Frey's syndrome	Recurrence
Benign neoplasms of the superficial lobe	91	4 1 Grade II – Marginal mandibular 2 Grade II – Buccal 1 Grade III – Marginal mandibular	0	18	0
Benign tumours of the deep lobe	28	3 2 Grade II – Marginal mandibular 1 Grade III – Marginal mandibular	0	7	0
Inflammatory tumours of the superficial lobe	18	2 1 Grade II – Marginal mandibular 1 Grade III – Marginal mandibular	0	7	0
Inflammatory lesions of the deep lobe	7	2 1 Grade II – Marginal mandibular 1 Grade III – Marginal mandibular	1 Grade II – Marginal mandibular	3	0
Schwannoma	1*	0	1 Grade II – Zygomatic	0	0
Primary malignancy of the superficial lobe without pre-operative facial nerve involvement	16**	3 2 Grade II – Marginal mandibular 1 Grade III – Marginal mandibular	3 2 Grade II – Marginal mandibular 1 Grade III – Frontal	3	0
Primitive malignancy of the deep lobe without pre-operative facial nerve involvement	3	0	2 1 Grade III – Marginal mandibular 1 Grade III – Zygomatic	0	0
Lymphomas	6	0	1 Grade III – Zygomatic	1	-
Normal parotid gland removed during the management of skin malignant neoplasms	7	1 Grade II – Marginal mandibular	0	2	0
Parotid metastasis of renal malignancy without skin infiltration or preoperative facial nerve involvement	1	0	0	0	0
Parotid metastasis of skin malignancies without skin infiltration or preoperative facial nerve involvement	10	1 Grade II – Marginal mandibular	0	2	0
Primitive or metastatic parotid malignancies with skin infiltration and preoperative facial nerve weakness	10	-	10	0	2
TOTAL	198	16	18	43	2

^*The tumour originated from the nerve and required the sacrifice of a minor branch.

^**2 procedures required sacrifice of a peripheral branch of the nerve that was directly involved by the neoplasm.