• Archives of Plastic Surgery
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• v.49 no.4
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• pp.523-526
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• 2022

Salivary duct carcinoma is a rare malignant salivary gland tumor that mainly has solid features. When it occurs in the parotid gland, it can invade the facial nerve and cause facial nerve paralysis. However, in our case, the salivary duct carcinoma exhibited cystic features on computed tomographic imaging, and the facial nerve passed through the cyst. Total parotidectomy with level-I to -III dissections was performed and nerve passing through the tumor was sacrificed. The patient received postoperative radiotherapy and was clinically and radiologically followed-up for every 3 months. Recurrence or distant metastasis was not reported. To the best of our knowledge, this is the first case involving a salivary duct carcinoma with cystic features and facial nerve invasion. Here, we report a first case of cystic salivary duct carcinoma of the parotid gland which uncommonly undergo cystic change and penetrated by facial nerve and successfully resected without causing facial nerve injury.

• The Korean Journal of Cytopathology
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• v.12 no.1
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• pp.49-52
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• 2001

Salivary duct carcinoma is an uncommon aggressive malignant epithelial neoplasm with similarity to intraductal carcinoma of the breast. This neoplasm occurs most often in the parotid gland of middle-aged and older males. About 7% of reported tumors occured in the submandibular gland. The report of salivary duct carcinoma with calcification is rare. We report a case of salivary duct carcinoma with calcification in the submandibular gland. The patient was a 73-year-old male with a mass of the right submandibular gland for 1 year. On the fine needle aspiration cytology, the aspirate showed scant cellularity, small clusters of tumor cells, and scattered small calcifications. Nuclei of the tumor cells showed mild pleomorphism and round to oval in shape, and cytoplasm was abundant and finely granular. Nucleoli were indistinct and necrosis was not noted. There were no cribriform or papillary arrangements of tumor cells. Cytologlc findings of salivary duct carcinoma are variable depending on histologic findings, and calcifications could be an additional cytologic findings.

• Korean Journal of Head & Neck Oncology
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• v.35 no.1
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• pp.13-20
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• 2019

Background/Objectives: Despite multiple approaches of treatments for salivary duct carcinoma, there has been a need for more successful treatment methods because of its poor prognosis. Treatment options like immunotherapy using new technologies have been attempted. Based on recent study results indicating that targeting programmed death receptors are effective in treating various cancers, this study aimed to identify the frequency of PD-L1 expression and its impact on survival rate in salivary duct carcinoma. Materials & Methods: We studied 33 patients with salivary gland cancer who were available for histologic specimens. We examined the expression of PD-L1 in the tissues and analyzed the association with the survival rate and the association with various clinical parameters. Results: According to this study and review of similar studies, we discovered that the expression of PD-L1 in salivary duct carcinoma was lower than other types of cancers. The impact of PD-L1 on survival rate also showed inconsistency in salivary duct carcinoma. Conclusion: Immunotherapy by PD-1/PD-L1 checkpoint blockade in salivary duct carcinoma needs further evaluation for clinical application.

• Archives of Craniofacial Surgery
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• v.9 no.1
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• pp.23-26
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• 2008

Salivary duct carcinoma is a high-grade adenocarcinoma arising from the ductal epithelium and has very low prevalence. We report a case of salivary duct carcinoma in high risk group with satisfactory result. A 65-year-old male was referred to our clinic complaining of mass on Rt. cheek. Preoperative CT and MRI shows $2.0{\times}1.9cm$ sized multilobulated, cystic mass on the superficial lobe of Rt. parotid gland and multiple lymph node enlargement thorough the Rt. internal jugular chain. Total parotidectomy and modified radical neck dissection with adjuvant radiation therapy was performed. Pathologic result was salivary duct carcinoma and resection margin was free. Postoperative radiation therapy with 6400 cGy($200cGy{\times}12fx$) was performed. During the 24-months of follow up periods, recurrence or complications associated with operation and radiation therapy was not observed. Salivary duct carcinoma is rare disease with very poor prognosis. Lymph node metastasis is commonly accompanied at the time of diagnosis. Distant metastasis is the most common cause of death. Total parotidectomy, radical neck disssection and adjuvant radiation therapy can be the appropriate modality for the control of the salivary duct carcinoma especially in high risk group.

• The Korean Journal of Cytopathology
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• v.8 no.2
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• pp.143-149
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• 1997

Salivary duct carcinoma is rare high grade adenocarcinoma, arising from larger excretory duct in major salivary gland, resembling the ductal carcinoma of the breast histologically. We report a case of salivary duct carcinoma of left parotid gland in which fine needle aspiration cytology was performed. Cytologic examination revealed 1) moderate cellularity, 2) flat sheets or three dimensional, tightly cohesive clusters on the necrotic background, 3) sometimes cribriform or papillary configuration, 4) polygonal or cuboidal cells with moderate anisonucleosis with abundant, granular and eosinophilic cytoplasm, 5) round to oval nuclei with irregular chromatin clumps, and 6) 1 or 2 inconspicuous nucleoli. Histologically, the tumor is mainly composed of cribriform intraductal component with central comedonecrosis, and small foci of infiltrating component including well differentiated ductal structures or irregular sheets in a desmoplastic stroma.

• Archives of Plastic Surgery
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• v.35 no.5
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• pp.607-610
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• 2008

Purpose: Salivary duct carcinoma(SDC) is uncommon but high grade adenocarcinoma arising in the ductal epithelium of salivary glands. SDC is characterized by distinctive clinical and pathologic features. The most important histologic aspect of this neoplasm is its resemblance to ductal carcinoma of the breast. Clinically SDC is defined by cervical lymph node involvement and distant metastasis with a high rate of recurrence and mortality. We described some of the clinical and pathological features of SDC and the management using case report for our patient. Methods: We present a case of a 40-year-old male with 2-year history of a swelling arising in his left preauricular region. There was a single painless, firm and solid $2{\times}1.5cm$ mass in the left parotid area. Facial nerve function was intact and no cervical lymph node were palpable. In August 2005, we found out $1.7{\times}1.8cm$ sized cystic, nodular lesions that were located in the superficial lobe of left parotid gland through Computed tomography. And then superficial parotidectomy and postoperative radiation therapy were performed in Jan 2007. Results: Pathologically, the specimen were consisted of homogeneous, chondoid to myxoid type of tissues. It was yellow mass that has multiloculated cystic lesions. In postoperative PET(Positiron emission tomography) CT, there was no evidence of uptaking FDG(Fluorodeoxyglucose) into the deep layers of parotid gland and distant metastasis were not seen. Conclusion: Salivary duct carcinoma(SDC) is a rare but high grade adenocarcinoma related to pleomorphic adenocarcinoma. The prognosis of SDC can be different according to the type of tumor such as mucoepidermoid adenocarcinoma, adenoid duct carcinoma and acinar cell carcinoma. So we need to study more carefully for accurate diagnosis in early stage of diagnosis. Although radiotherapy has not yet proven to be a significant factor in overall survival, the combination of parotidectomy and postoperative radiation therapy can lead to more favorable results in treating of SDC.

• The Korean Journal of Cytopathology
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• v.17 no.1
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• pp.56-62
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• 2006

Salivary duct carcinoma (SDC) is a rare primary salivary gland malignancy characterized by histological features similar to those of ductal carcinomas of the breast. It is regarded as a high-grade malignancy associated with frequent local recurrences and early distant metastases that require aggressive treatment. The typical fine needle aspiration cytology (FNAC) findings in SDC include cellular smears showing tumor cells with eccentric pleomorphic nuclei and a granular cytoplasm arranged in flat sheets or cribriform patterns against a necrotic background. However, the presence of mucin-containing cells in SDC has been rarely described. We report the FNAC findings in a patient with histologically confirmed SDC that demonstrated numerous mucin-containing cells and was subsequently misdiagnosed as a high-grade mucoepidermoid carcinoma. Here we discuss the problems involved in distinguishing SDC from high-grade mucoepidermoid carcinoma on the basis of cytologic findings alone.

• Korean Journal of Head & Neck Oncology
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• v.22 no.2
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• pp.171-174
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• 2006

Tumors rarely arise in the sublingual salivary glands. They should be considered malignant until proved otherwise. Adenoid cystic carcinoma is most commonly encountered malignant tumor of the sublingual gland. We report a case of adenoid cystic carcinoma arising from the sublingual gland. Moreover, the sublingual gland had anatomic variation of main duct(Bartholin's duct) which is connected to Wharton's duct.

• Korean Journal of Head & Neck Oncology
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• v.28 no.2
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• pp.125-128
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• 2012

Salivary duct carcinoma(SDC) is a highly malignant tumor of the salivary gland. The tumor is clinically characterized by a rapid onset and progression, the neoplasm is often associated with pain and facial paralysis. The nodal recurrence rate is high, and distant metastasis is common. SDC resembles high-grade breast ductal carcinoma. Curative surgical resection and postoperative radiation were the mainstay of the treatment. If facial paralysis is present, a radical parotidectomy is mandatory. Regardless of the primary location of SDC, ipsilateral functional neck dissection is indicated, because regional lymphatic spread has to be expected in the majority of patients already at time of diagnosis. If there is minor gland involvement, a bilateral neck dissection should be performed, because lymphatic drainage may occur to the contralateral side. The survival of SDC patient is poor, with most dying within three years. We experienced a unique case of SDC in parotid deep lobe. We report the clinicopathologic features of this tumor with a review of literature.

• The Korean Journal of Cytopathology
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• v.16 no.2
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• pp.75-87
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• 2005

Fine needle aspiration cytology (FNAC) is a very useful tool in the preoperative diagnosis of lesions of the salivary gland. Surgical therapy of high-grade malignancies (salivary duct carcinoma, mucoepidermoid carcinoma, squamous cellcarcinoma, carcinoma ex pleomorphic adenoma, small cell carcinoma, and sebaceous carcinoma) is different from that of benign lesions or low-grade malignancies. Therefore, the recognition of high-grade malignancies is important in salivary gland FNAC. Although recognition of high-grade malignancies of the salivary gland by FNAC is not difficult, precise classification of these malignancies is often impossible. Additionally, because of its rarity, FNAC of spindle cells and mesenchymal lesions of the salivary glands is a tool that is not familiar to many cytopathologists. The characteristic cytomorphologic features of these lesions are reviewed here with a discussion of specific diagnostic problems.