Dermoid cyst of the parotid gland (original) (raw)

Rare Location of a Dermoid Cyst in the Parotid Gland: A Case Report

Prague Medical Report

Dermoid cyst of the parotid gland is a lesion composed of benign tissues of ectodermal and mesodermal origin. Although a dermoid cyst can be encountered across nearly all sites of the body, its location in the head and neck area is quite uncommon and even more unusual inside the parotid gland. We present a case of a patient with gradually enlarging tumour in her right parotid gland who underwent surgical removal of the tumour histologically corresponding to a dermoid cyst.

Dermoid cyst of parotid gland; Report of a rare entity with literature review

The Professional Medical Journal

Dermoid cysts are developmental cysts in young adults that are very uncommon in head and neck area. In oral and maxillofacial area the cysts are mainly present in the submental triangle and in floor of mouth. In the neck dermoid cysts usually present as midline neck mass. Parotid gland is extremely rare site at which the dermoid cysts develop. There are only 19 reported cases till date. Superficial parotidectomy is the suggested surgical treatment, however sometimes enucleation is all that is needed. We present a rare case of this entity which was pre-operatively diagnosed as pleomorphic adenoma on Fine Needle Aspiration Cytology.

DERMOID CYST OF THE PAROTID GLAND Head and Neck Surgery

2019

PAROTİS BEZİNDE DERMOİD KİST Baş ve boyunda yerleşmiş dermoid kistler benign lezyonlardır ve histolojik olarak ektoderm ve mezoderm orjinli dokulardan oluşurlar. Parotis bezinde çok nadir görülürler ve parotis kitlelerinin ayırıcı tanısında düşünülmeleri gerekir. Literatürde yayınlanmış çok az vaka vardır. Tedavi cerrahi olup, yüzeysel parotidektomi önerilse de, kitlenin enükleasyonu tedavi için yeterlidir. Bu yazıda, sağ parotis bezi yüzeyel lobda yerleşmiş kistik kitle nedeniyle ameliyat edilen dermoid kist olgusu sunuldu, tanı ve tedavisi tartışıldı. Abstract

Dermoid cyst in the facial nerve—A unique diagnosis

International Journal of Pediatric Otorhinolaryngology, 2011

Facial nerve paralysis in children may occur as a complication of infections, trauma, or rarely from benign or malignant tumors of the facial nerve. We present the first reported case of a dermoid tumor in the facial nerve causing facial paralysis in a child. Case report at a tertiary Children's Hospital. A 9-month-old was referred to our institution for evaluation of persistent, complete right sided facial paralysis three months after receiving a diagnosis of Bell's palsy. A workup at our institution including MRI and CT revealed marked widening of the facial canal in the mastoid segment consistent with facial nerve schwannoma or hemangioma. Surgical exploration via mastoidectomy and facial nerve decompression revealed keratinous material containing hair that had fully eroded the facial nerve, disrupting it completely. The entire tumor was removed along with the involved segment of facial nerve, and the missing facial nerve segment was cable grafted. Histological examination of the tumor confirmed a ruptured dermoid cyst in the facial nerve. Facial nerve tumors are rare causes of facial paralysis in children, accounting for fewer than 10% of cases of facial paralysis in the pediatric population. Dermoid cyst can occur throughout the head and neck region in children, but a dermoid tumor in the facial nerve has not been described in the literature prior to this report. This represents a new and uncommon diagnostic entity in the evaluation of facial nerve paralysis in children. Appropriate imaging studies and pathology slides will be reviewed.

Dermoid cyst of the oral cavity: A case report

Medical review, 2018

Introduction. Dermoid cysts are benign developmental skin growths that can occur in any part of the body. Dermoid cysts of the head and neck account for 7% of all cysts, and are most frequently located near the lateral aspect of the eyebrow. They are rarely found in the oral cavity, accounting for 0.01% of all oral cavity cysts. Case Report. A 15-years-old patient was referred to our Clinic due to a growth in the mouth. Clinical examination and magnetic resonance imaging showed a clearly demarcated, oval, cystic growth in the midline sublingual region. Intraoral incision, typical for frenectomy, with cyst excision was performed. Histopathological findings suggested a dermoid cyst. Conclusion. Dermoid cysts of the oral cavity are very rare; they grow slowly and when they reach certain dimensions, they interfere with chewing, swallowing, and lead to progressive breathing difficulty. Dermoid cysts should be included in the differential diagnosis of sublingual mass. Magnetic resonance i...

Surgical Presentation and Outcome of Parotid Gland Tumours

Journal of the College of Physicians and Surgeons Pakistan Jcpsp, 2013

OBJECTIVE: To assess the clinical presentation and outcome of surgical management of various parotid gland disorders requiring parotidectomy.STUDY DESIGN: Case series.PLACE AND DURATION OF STUDY: Department of General Surgery, Pakistan Institute of Medical Sciences (PIMS), Islamabad, from January 2003 to December 2010.METHODOLOGY: Patients presenting in surgical OPD with parotid gland disorders requiring parotidectomy were included. Data were obtained through the Hospital Management Information System (HMIS) and patient charts. The sociodemographic profile of the patient, presenting features among patients, benign versus malignant nature of the disease, FNAC reports, type of surgical procedure instituted, complications encountered and histology reports of the surgical specimens were all recorded on a proforma. The data were subjected to statistical analysis with SPSS version 15.RESULTS: Out of 126 patients, 62 (49%) were males and 64 (51%) females with mean age of 41 ± 12.6 years. All had presented with a lump usually painless. One hundred and fourteen (90.47%) patients had benign pathology while 9.52% (n = 12) had malignanciy. Superficial parotidectomy was carried out in 79.36% (n = 100) patients, total parotidectomy in 19% (n = 24) and extended total parotidectomy was performed in 2 cases (with mucoepidermoid carcinoma). The most common post-operative complication was greater auricular nerve paresis (n = 19; 15%) followed by facial nerve transient paresis (n = 10; 8%). There was no in-hospital mortality.CONCLUSION: Parotid gland lumps commonly affect relatively young individuals of either gender. Most of the patients have benign pathology. Superficial parotidectomy is the most commonly offered surgical procedure. Parotid surgeries are safely performed in general surgery units with low morbidity and no mortality.

Clinical Presentations And Surgical Outcomes Of Parotid Gland Tumors

2015

and included 34 patients who underwent parotidectomy. Data were collected regarding clinical presentations, benign versus malignant nature of the disease on FNAC reports, radiological findings, type of surgery instituted, complications encountered and histology reports of the surgical specimens and subjected to statistical analysis. Results: All patients had presented with a lump usually painless. Thirty (88%) patients had benign pathology while four (12%) had malignancies. Most common surgical procedure instituted was superficial parotidectomy, performed in 90% (n = 31). The most common complication was Sialocele (n=5; 15%) followed by facial nerve palsy (n= 2; 6%).The value of FNAC as a diagnostic tool was with 96.66% specificity and 75% sensitivity. Conclusion: Pleomorphic adenoma is most common benign pathology. Superficial parotidectomy is the most commonly offered surgical procedure. Parotid surgeries are safely performed with low morbidity and no mortality. [Jayman R NJIRM 20...

Parotid Gland Tumours: A Clinicopathological Study

Journal of Evolution of Medical and Dental Sciences

BACKGROUND Salivary gland tumours are interesting and challenging due to their relative infrequency of incidence, Histopathological (HPE) and behavioural diversity and the regional anatomic relationship with important structures. Salivary gland tumours comprise about 3-4% of all head and neck neoplasms. 70% of these tumours arise in parotid gland, 22% in sub-Mandibular gland and 8% in the rest. Of these tumours 80% of parotid, 50% of sub-Mandibular, 50% of sublingual and 25% of minor salivary glands are benign. Parotid gland is the most common site of salivary gland tumours. Most common parotid tumour is pleomorphic adenoma followed by Warthin's tumour. Most common malignant tumour of parotid gland is muco-epidermoid carcinoma. FNAC of salivary gland swelling is commonly accepted, sensitive and specific technique in the diagnosis of both neoplastic and non-neoplastic lesions of salivary gland. The traditional open biopsy is no longer justified because of risk of tumour spillage and damage to the facial nerve. Treatment of parotid tumours is either by surgery (Superficial/Total parotidectomy) alone or surgery followed by radiotherapy in certain cases. Tumours should be excised, not enucleated. AIMS OF THE STUDY To study the demographic profile of patients with parotid gland tumours to study the clinico-pathological features of parotid gland tumours. To evaluate the role of FNAC in the pathological diagnosis of parotid gland tumours and to correlate the FNAC reports with histopathology. To study the various surgical procedures adopted for parotid gland tumours and the incidence of immediate complications after surgery. MATERIALS AND METHODS Between November 2007 and November 2009 at the Department of surgery of the Government Medical College, Calicut, Kerala 57 patients with parotid neoplasm were clinically evaluated and among them 32 were females and 25 were males. Nearly 50% of the patients belonged to 2 nd and 3 rd decades followed by 5 th and 6 th decades. Preliminary FNAC showed 32 (56.16%) out of 57 as pleomorphic adenoma, followed by Warthin's tumour in 17.54% and Muco-epidermoid carcinoma in 10.53%. The Benign epithelial tumour was observed in 8.77%, monomorphic adenoma in 3.51% and adenoid cystic carcinoma in 3.51% of the patients. RESULTS All the patients were subjected to excision biopsy and Histo-pathological study. The Sensitivity of FNAC for benign tumours and malignant tumours was 100% and 80% respectively; Whereas the specificity for benign tumour and malignant tumours was 80% and 100% respectively. The Recurrence rate and post-operative facial weakness were low. CONCLUSIONS Sensitivity of FNAC for benign tumour was 100% and for malignant tumour was 80%. Specificity of FNAC for benign tumour was 80% and for malignant tumour was 100%. There were no complications attributed to FNAC.

Benign tumors of the superficial lobe of the parotid gland

Romanian Journal of Morphology and Embryology, 2022

Tumors of the parotid gland are a rare occurrence among head and neck tumors (only 3-8%), and the vast majority are benign. Most benign tumors of the parotid gland are pleomorphic adenoma (PA), followed by Warthin's tumor (WT) and they occur in the superficial lobe. The only reasonable treatment is considered to be total tumor removal, but the appropriate surgical approach remains a matter of controversy. Over time, it went from enucleation to superficial parotidectomy (SP) and then to extracapsular dissection (ECD). SP is often considered to be the "gold standard"; however, the risk of intraoperative damage to the facial nerve (FN) cannot be ignored. Lately, ECD-which does not expose the main trunk of the FN-has been regarded as a safe technique for the treatment of small benign parotid tumors. Patients, Materials and Methods: The study retrospectively reviewed all parotidectomies for benign parotid tumors of the superficial lobe performed in the Department of ENT, Municipal Emergency Clinical Hospital, Timişoara, Romania, between January 2014 and December 2018. The following patient data were collected: age; sex; follow-up duration; extension of the resection; use of FN monitoring and lesion features, including position, pathology, and size. Preoperative investigation protocol included a computed tomography (CT) scan to assess the size and location of the tumor helping the treatment planning. The same surgical team performed both standard SP and ECD for the treatment of these tumors. All cases were confirmed as benign parotid tumors. Recurrences of any kind and tumors involving the deep lobe of the gland were excluded from the study. All patients underwent a macroscopically complete resection of the tumor. The main outcome was the postoperative complications in the two groups. Data regarding these complications were recorded on follow-up visits at one, six, 12 and 24 months. Results: Ninety-five patients with benign parotid tumors were operated by the same surgical team at the Department of ENT, Municipal Emergency Clinical Hospital, Timişoara, between January 2014 and December 2018 but only 89 (38 men and 51 women) met the follow-up criteria and were included in the study. Sixteen (18%) patients underwent ECD, and 73 (82%) patients underwent SP as a primary intervention. The mean lesion size for ECD group was 2.0±0.9 cm and 4.2±1.7 cm in the SP group, and it was statistically significant (p<0.05). As expected, the most common type of tumor was PA but the distribution between the groups was different: in the SP group, PA represents 83% (61/73) of cases but only 44% (7/16) of cases in the ECD group. Median follow-up time was comparable in the two groups-33±8 months for the ECD group and 39±11 months for the SP group. There were also differences between the two groups regarding the postoperative complication rate. There were significantly more transient and permanent FN paralysis, transient and permanent great auricular nerve (GAN) dysfunctions and Frey's syndrome (FS) in the SP group. Conclusions: A comparison between ECD and SP as surgical procedures for the treatment of benign tumors of the parotid seems inappropriate as their indications do not overlap. ECD showed similar effectiveness and fewer side effects than SP and can be considered the treatment of choice for small, superficial and/or marginal tumors located in the lateral lobe of the parotid gland.