Contemporary Clinical Dentistry
   
  Home | About us | Editorial board | Search
Ahead of print | Current Issue | Archives | Advertise
Instructions | Online submission| Contact us | Subscribe |

 

Login  | Users Online: 1685  Print this pageEmail this pageSmall font sizeDefault font sizeIncrease font size 



 
 Table of Contents  
CASE REPORT
Year : 2016  |  Volume : 7  |  Issue : 1  |  Page : 87-89  

Primary malignant melanoma of oral cavity: A report of three rare cases


1 Department of Oral and Maxillofacial Pathology, Maulana Azad Institute of Dental Sciences, New Delhi, India
2 Department of Oral Medicine and Radiology, Maulana Azad Institute of Dental Sciences, New Delhi, India

Date of Web Publication22-Feb-2016

Correspondence Address:
Hanspal Singh
Department of Oral and Maxillofacial Pathology, Maulana Azad Institute of Dental Sciences, New Delhi
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0976-237X.177094

Rights and Permissions
   Abstract 


Oral malignant melanoma (OMM) is a rare tumor of melanocytic origin, accounting for 20–30% of malignant melanomas at the mucosal surface and 16% intra-orally. Hard palate and maxillary gingiva are the most common involved sites. In this case series, we present varying patterns of presentation of three cases of OMM with one case of distant metastasis. All cases in the current series presented at an advanced stage and died within a year of diagnosis. In conclusion, due to the aggressive clinical course and poor prognosis of this deadly lesion, it is of paramount importance to maintain a high index of suspicion for early detection and diagnosis for any pigmented lesion in the oral cavity.

Keywords: Malignant melanoma, metastasis, oral melanoma


How to cite this article:
Singh H, Kumar P, Augustine J, Urs AB, Gupta S. Primary malignant melanoma of oral cavity: A report of three rare cases. Contemp Clin Dent 2016;7:87-9

How to cite this URL:
Singh H, Kumar P, Augustine J, Urs AB, Gupta S. Primary malignant melanoma of oral cavity: A report of three rare cases. Contemp Clin Dent [serial online] 2016 [cited 2019 Nov 13];7:87-9. Available from: http://www.contempclindent.org/text.asp?2016/7/1/87/177094




   Introduction Top


Oral malignant melanoma (OMM) is a malignant neoplasm of melanocytic origin.[1] Indian studies have revealed that 20–30% of malignant melanoma are at the mucosal surface and 16% are intraoral.[2]

In this case series, we present varying patterns of presentation of OMM with one case of distant metastasis.


   Case Reports Top


Case 1

A 65-year-old male patient complained of growth and occasional bleeding on the right side of the palate since 8 months. The patient also had a history of smoking 10–12 bidis/day for 5–7 years and occasionally consumed alcohol.

Clinical examination revealed gross facial asymmetry, with swelling over the right side of the face and upper lip. Bilateral submandibular lymph nodes were palpable and firm in consistency. A proliferative fungating growth was seen on the right side of the edentulous maxillary arch and palate, extending over the right alveolar ridge and facial vestibule up to the midline anteriorly, and covering the hard and soft palate up to the tuberosity posteriorly [Figure 1]a. The growth was brownish-gray with black and red patches, representing necrotic and hemorrhagic areas. Soft palate showed the presence of 4–5 brownish macules, each 0.5 cm in diameter [Figure 1]b.
Figure 1: (a) Blackish brown proliferative growth on edentulous maxillary arch and palate and (b) small blackish macules on the soft palate. Contrast enhanced computed tomography showing (c) a large infiltrating homogenous mass on right anterior alveolus. (d) heterogenous enlarged submandibular lymph nodes

Click here to view


The contrast enhanced computed tomography (CT) maxilla showed large homogenous mass with infiltrating margins in the right anterior alveolus extending into the hard palate posteriorly [Figure 1]c and skin of the upper lip anteriorly with enlarged right submandibular lymph node [Figure 1]d. Histopathology showed stroma invaded by melanocytes displaying pleomorphism [Figure 2]a. The melanocytes were predominantly spindle-shaped and exhibited mitotic figures. Epitheloid shaped melanocytes were also seen dispersed in between. The growth pattern of these melanocytes was both in the radial and vertical growth phases. Intertwining and fasciculated bundles of malignant melanocytes [Figure 2]b were seen in a streaming fashion.
Figure 2: Microphotograph showing Case number 1 (a) pleomorphic melanocytes (H and E, ×100) and (b) intertwining and fasciculated bundles of malignant melanocytes of (H and E, ×400). Case number 2 (c) showing pleomorphic dysplastic melanocytic cells arranged in a pagetoid pattern (H and E, ×100) and (d) epithelioid cells interspersed with the pigmented cells (H and E, ×400). Case number 3 showing (e and f) atypical melanocytes singly and in nests in pagetoid fashion and in sheets (e: H and E, ×40; f: H and E, ×100)

Click here to view


Case 2

A 57-year-old male patient presented with swelling on left side of upper jaw which was tender to touch. The patient was apparently well 1 month ago when he noticed pain in upper left upper back tooth region and swelling on left side of face which gradually increased. The patient was chronic beedi smoker with occasional consumption of alcohol since 35–40 years.

On inspection, extraorally, a diffuse swelling measuring 6 cm × 5 cm in size extending superiorly from 2 cm below the infraorbital margin till the corner of mouth inferiorly was seen. Intraorally, brownish black, irregular growth of 6 cm × 4 cm was seen extending from 13 to 27 on both buccal and lingual aspects involving ridge area [Figure 3]a and [Figure 3]b. On palpation, extraoral swelling was soft fluctuant and tender. Intraorally, swelling was soft to firm inconsistency and tender.
Figure 3: (a and b) Brownish black, irregular growth extending from 13 to 27 on both buccal and lingual aspects involving ridge area. Contrast enhanced computed tomography showing (c) a homogeneous mass with the erosion of left alveolar arch and (d) extension into the left lateral margin of hard palate

Click here to view


Radiographically, a homogeneously enhancing soft tissue mass was seen involving left gingivoalveolar complex with the erosion of left alveolar arch [Figure 3]c, extension into the left lateral margin of hard palate [Figure 3]d with the destruction of inferolateral wall of left maxillary sinus. Histopathologically, the connective tissue showed numerous ovoid to stellate dysplastic cells showing pleomorphism and dense dark brown pigmented granules throughout the cytoplasm arranged in a pagetoid pattern. Numerous epithelioid cells were seen interspersed with the pigmented cells. The connective tissue was composed of loosely arranged collagen fibers with moderate vascularity. The surface epithelium was ulcerated [Figure 2]c and [Figure 2]d.

Case 3

A 55-year-old male patient complained of blackish colored growth in the front upper region of the mouth. About 2 months before, he noticed a small black swelling in the anterior edentulous maxillary region of the palate with slight pain. Later, it expanded on the buccal area as well and caused the exfoliation of mobile tooth. The patient was a chronic alcoholic and beedi smoker since 45 years and smoked 20 beedis (approximately) per day. Extra-oral examination revealed the slight fullness of the upper lip. Left submandibular lymph node was enlarged and fixed, nontender, causing asymmetry of face. Intra-oral examination showed grayish black swelling measuring 4 cm × 4 cm × 3 cm in size in the edentulous area with buccal extension of 1.5 cm and palatal extension of 2.5 cm. The growth was well circumscribed ovoid, soft, and nontender [Figure 4]a. CT scan showed heterogenous soft tissue mass perforating the anterior hard palate [Figure 4]b. Borders were irregular and lobulated. A small well-circumscribed round flattened blue-black swelling was observed on the left side of the soft palate. A blackish mass measuring 1 cm was present on the patient's back. Fine needle aspiration cytology, an inky black aspirate was obtained that showed dispersed degenerated large atypical cells with few macronuclei. Histopathological examination showed infiltration of atypical melanocytes singly and in nests, in a pagetoid and organoid fashion [Figure 2]e and [Figure 2]f showing granular pigmentation and hyperchromatism. The whole-body 18 F-fluorodeoxyglucose positron emission tomography-computed tomography scan showed metastatic deposits in lymph node (cervical, supraclavicular, mediastinal, and abdominal), liver, lung, and brain [Figure 4]c and [Figure 4]d.
Figure 4: (a) Well circumscribed ovoid growth on maxillary anterior region. (b) Contrast enhanced computed tomography showing heterogenous soft tissue mass perforating the anterior hard palate. (c and d) 18F-fluorodeoxyglucose positron emission tomography-computed tomography scan showing metastatic deposits in lymph nodes (cervical, supraclavicular, mediastinal, and abdominal), liver, lung, and brain. Inset shows multiple deposits in the brain

Click here to view



   Discussion Top


OMM by nature is asymptomatic and hence their progression may remain unnoticed by patients, contributing to delay in diagnosis.[3] All cases in the current series, presented at an advanced stage and were clinically of pigmented mixed type.[4] Clinicians should be vigilant toward findings such as swelling within a pigmented area, hemorrhage, interference with denture fitting, and/or loosening of teeth. The absence of indurated edges that are usually indicative of carcinoma may delay diagnosis. Pain is encountered mostly in advanced stages.[5] In the present series, two cases presented with pain and one showed hemorrhage as oral manifestation. The third case showed loosening of anterior teeth associated with a pigmented swelling.

All three patients underwent multimodal chemotherapy and were dead within 6–12 months of diagnosis. Over half of all recurrences/metastasis occur within 3 years. Hence, there is a need to concentrate follow-up in the early time period following diagnosis.[6]

The poor prognosis of OMM with the 5-year survival rate being between 15% and 38%.[7] Metastasis from OMM occurs to the regional lymph nodes and in such distant sites as the lung, liver, brain, and bone.[8]

Marx et al. recommended chest X-ray after every 6 months, postsurgery as a necessary follow-up tool to assess distant metastasis.[9]

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
   References Top

1.
Auluck A, Zhang L, Desai R, Rosin MP. Primary malignant melanoma of maxillary gingiva – A case report and review of the literature. J Can Dent Assoc 2008;74:367-71.  Back to cited text no. 1
    
2.
Hashemi Pour MS. Malignant melanoma of the oral cavity: A review of literature. Indian J Dent Res 2008;19:47-51.  Back to cited text no. 2
[PUBMED]  Medknow Journal  
3.
Umeda M, Komatsubara H, Shigeta T, Ojima Y, Minamikawa T, Shibuya Y, et al. Treatment and prognosis of malignant melanoma of the oral cavity: Preoperative surgical procedure increases risk of distant metastasis. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008;106:51-7.  Back to cited text no. 3
    
4.
Tanaka N, Mimura M, Ogi K, Amagasa T. Primary malignant melanoma of the oral cavity: Assessment of outcome from the clinical records of 35 patients. Int J Oral Maxillofac Surg 2004;33:761-5.  Back to cited text no. 4
    
5.
Barker BF, Carpenter WM, Daniels TE, Kahn MA, Leider AS, Lozada-Nur F, et al. Oral mucosal melanomas: The WESTOP Banff workshop proceedings. Western Society of Teachers of Oral Pathology. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1997;83:672-9.  Back to cited text no. 5
    
6.
Rosenberg SA, Lotze MT, Muul LM, Leitman S, Chang AE, Ettinghausen SE, et al. Observations on the systemic administration of autologous lymphokine-activated killer cells and recombinant interleukin-2 to patients with metastatic cancer. N Engl J Med 1985;313:1485-92.  Back to cited text no. 6
    
7.
Ebenezer J. Malignant melanoma of the oral cavity. Indian J Dent Res 2006;17:94-6.  Back to cited text no. 7
[PUBMED]  Medknow Journal  
8.
Lucas RB. Pathology of Tumors of the Oral Tissues. 4th ed. New York: Churchill Livingstone; 1984. p. 276-81.  Back to cited text no. 8
    
9.
Marx RE, Stern D, editors. Oral and Maxillofacial Pathology: A Rationale for Treatment. Chicago: Quintessence; 2003. p. 111.  Back to cited text no. 9
    


    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4]


This article has been cited by
1 Determining the epidemiologic, outcome, and prognostic factors of oral malignant melanoma by using the Surveillance, Epidemiology, and End Results database
Robert J. Lee,Serena A. Lee,Thomas Lin,Kevin K. Lee,Russell E. Christensen
The Journal of the American Dental Association. 2017; 148(5): 288
[Pubmed] | [DOI]



 

Top
 
  Search
 
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
    Access Statistics
    Add to My List *
* Registration required (free)  

 
  In this article
    Abstract
   Introduction
   Case Reports
   Discussion
    References
    Article Figures

 Article Access Statistics
    Viewed1515    
    Printed10    
    Emailed0    
    PDF Downloaded157    
    Comments [Add]    
    Cited by others 1    

Recommend this journal