Diagnosi differenziale dei tumori parotidei: quali caratteristiche di risonanza magnetica considerare?

Tartaglione, Tommaso; Botto, Annibale; Sciandra, Mariacarmela; Gaudino, Simona; Danieli, Lucia; Parrilla, Claudio; Paludetti, Gaetano; Colosimo, Cesare

doi:10.14639/0392-100x-693

Cited by 38 publications

(28 citation statements)

References 29 publications

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“…Ultrasonography (USG) is the initial investigation of choice. But USG has certain limitations such as difficulty studying the deep parotid lobe because of the mandible acoustic shadow, inability to visualize the facial nerve, retropharyngeal and deep neck lymphadenopathies, and the difficult to identify the involvement of surrounding tissue [ 4 , 11 ]. This problem is compounded in GtPGTs due to their size.…”

Section: Discussionmentioning

confidence: 99%

“…This problem is compounded in GtPGTs due to their size. Therefore, MRI is the preferred investigation for such GtPGTs, primarily due to its ability to provide excellent morphological and volume assessment and a precise definition of the relationship with adjacent structures [ 11 ]. This information becomes more critical in cases of GtPGTs because distortion of the surrounding anatomy is expected due to their large size [ 1 ].…”

Section: Discussionmentioning

confidence: 99%

“…This information becomes more critical in cases of GtPGTs because distortion of the surrounding anatomy is expected due to their large size [ 1 ]. On MRI, GtPGTs tend to be well-capsulated, lobulated, and non-homogenous in appearance due to areas of necrosis, hemorrhagic, and cystic degeneration with or without calcification [ 3 , 11 ]. There is also increased vascularity of glands with multiple feeder vessels, commonly arising from the external carotid artery or its branches, seen on imaging [ 2 , 7 - 8 , 10 ].…”

Section: Discussionmentioning

confidence: 99%

“…There is also increased vascularity of glands with multiple feeder vessels, commonly arising from the external carotid artery or its branches, seen on imaging [ 2 , 7 - 8 , 10 ]. CECT can also be used only in cases where MRI is contraindicated or not available [ 11 ].…”

Section: Discussionmentioning

confidence: 99%

“…FNAC is a rapid and useful tool for cytological diagnosis. The risk of dissemination of neoplastic cells along the needle tract and facial nerve injury is also negligible [ 11 ]. However, the large size of these GtPGTs increases the risk of having a false negative or inconclusive report owing to the inability to sample the representative areas.…”

Section: Discussionmentioning

confidence: 99%

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Colossal Parotid Tumors: A Diagnostic and Surgical Challenge

Jain¹,

Sudharshan²,

Vijayakumar³

et al. 2021

Cureus

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Tumors of the salivary glands constitute 3% of all head and neck tumors. The parotid gland (PG) is the most common site involved in 85% of cases. PG tumors' size varies from a few millimeters to several centimeters and is about 2-6 cm on average. However, because of insidious growth and asymptomatic nature, untreated tumors of the PG can attain large size. Pleomorphic adenoma (PA), as large as 33 cm in size or 26.5 kg in weight, has been reported in the literature. Similarly, untreated Warthin’s tumor (WT) rarely becomes giant, size up to 20 cm is reported. Giant PG tumors are commonly symptomatic and have a rare tendency to become malignant. We are reporting two giant PG tumors with different histopathological diagnoses, PA and WT of size 15x15 cm and 10x8 cm, respectively. Therefore, with a size of 10 cm, our case is the second-largest WT reported in the literature. Both the giant PG tumors were present for 15-20 years, and mild pain and discomfort were the only symptoms. We had the differential preoperative tissue diagnosis in fine-needle aspiration cytology (FNAC) because of varying consistency. Contrast-enhanced computed tomography (CECT) and magnetic resonance imaging (MRI) of the neck were done for these cases for preoperative planning. Compared to the former, the latter was more informative about nerve involvement preoperatively. Both the patients underwent superficial parotidectomy, and meticulous dissection was done to identify and safeguard the facial nerve and its branches. We had a challenge in closing the flaps, which was achieved with an acceptable cosmetic outcome. Both the patients were discharged in stable condition with minimal facial nerve weakness.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Colossal Parotid Tumors: A Diagnostic and Surgical Challenge

Jain¹,

Sudharshan²,

Vijayakumar³

et al. 2021

Cureus

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Imaging of the salivary glands

MacDonald¹,

Brown²

2019

Oral and Maxillofacial Radiology

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Multiparametric Magnetic Resonance Imaging for the Diagnosis and Differential Diagnosis of Parotid Gland Tumors

Gökçe

2020

Magnetic Resonance Imaging

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The majority of salivary gland tumors occur in the parotid glands. Characterization (ie, benign or malignant, and histological type), location (deep or superficial), and invasion into the neighboring tissues of parotid tumors determine preoperative treatment planning. MRI gives more information than other imaging methods about the internal structure, localization, and relationship with other tissues of parotid tumors. Functional MRI methods (diffusion‐weighted imaging, dynamic contrast‐enhanced MRI, perfusion‐weighted MRI, MR spectroscopy, etc.) have been increasingly used recently to increase the power of radiologists to characterize the tumors. Although they increase the workload of radiologists, the combined use of functional MRI methods improves accuracy in the differentiation of the tumors. There are a wide range of studies in the literature dealing with the combined use of different functional imaging methods in combination with conventional sequences. The aim of the present review is to evaluate conventional and functional/advanced MR methods, as well as multiparametric MRI applications combining them in the diagnosis of parotid gland tumors.Evidence Level: 5Technical Efficacy: Stage 3J. Magn. Reson. Imaging 2020;52:11–32.

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Diagnosi differenziale dei tumori parotidei: quali caratteristiche di risonanza magnetica considerare?

Cited by 38 publications

References 29 publications

Colossal Parotid Tumors: A Diagnostic and Surgical Challenge

Colossal Parotid Tumors: A Diagnostic and Surgical Challenge

Imaging of the salivary glands

Multiparametric Magnetic Resonance Imaging for the Diagnosis and Differential Diagnosis of Parotid Gland Tumors

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