Rare parotid gland tumors:enhanced computed tomography and pathological correlation
10.7518/hxkq.2015.04.019
- VernacularTitle:腮腺少见肿瘤的增强CT表现及其病理基础
- Author:
Xiaoling WEN
1
;
Jiang SHEN
;
Dongsheng WU
;
Heng SHAO
;
Lu LIU
;
Chunhua XU
Author Information
1. 四川大学华西第四医院放射科
- Keywords:
rare parotid gland tumors;
computed tomography;
pathology
- From:
West China Journal of Stomatology
2015;(4):414-418
- CountryChina
- Language:Chinese
-
Abstract:
Objective??To?investigate?the?correlation?between?enhanced?computed?tomography?(CT)?findings?and?patholo-gical?results?of?rare?parotid?gland?tumors,?and?improve?diagnosis?accuracy. Methods??The?enhanced?CT?manifestations?of?22?cases?with?pathologically?documented?rare?parotid?gland?tumors,?which?included?6?cases?of?basal?cell?tumor,?5?cases?of?myoepithelioma,?4?cases?of?vascular?invasion,?3?cases?of?lymphatic?cyst,?3?cases?of?lipoma,?and?1?case?of?chondrosarcoma,?were?retrospectively?analyzed.?The?location,?size,?shape,?density,?and?relationship?with?surrounding?structure?were?evaluated?on?CT?images.?Results??The?enhanced?CT?showed?that?basal?cell?tumors?occurred?in?the?superficial?lobe?of?the?parotid?gland,?with?clear?boundary,?within?the?cystic?lesion.?The?lesions?were?moderate?to?obviously?enhanced,?which?may?be?accompanied?by?enlarged?lymph?nodes.?Myoepithelial?tumors?were?located?in?the?superficial?lobe?of?the?parotid?gland,?with?a?small?cystic?prone?and?microcalcification?within?a?few?cases.?The?lesions?were?moderate?to?obviously?enhanced.?Hemangiomas?of?soft?tissue?mass?prominent?in?the?parotid?gland?surface?were?mild?to?significantly?enhanced.?Larger?lesions?may?occupy?the?entire?parotid?gland,?with?uneven?density?and?visible?vein?stone.?The?CT?density?values?of??the??lymphatic?cyst?were?usually?higher.?Chondrosarcoma?mainly?manifested?cystic?mass?at?the?calcification?edge.?Lipoma?with?fat?density?mass?exhibited?clear?boun-dary?without?enhancement.?Fiber?separation?could?be?observed?in?the?lesion.?Conclusion??CT?can?reflect?the?pathological?features?of?rare?parotid?gland?tumors?by?demonstrating?their?corresponding?imaging?features.?Enhanced?CT?is?the?most?effec-tive?means?of?imaging?to?identify?the?nature?of?rare?tumor?of?the?parotid?gland?lesions.
