Tumoren der Speicheldrüsen

Warthin-Tumor der Parotis, von links nach rechts: oben T2 FS ax, DWI ax, T2 FS cor; unten T1 ax, T1 FS KM ax und cor. Etwas Umgebungsreaktion um den Tumor ist nicht klassisch; typischerweise klar nach aussen abgrenzt.

Warthin-Tumor

der Parotis, von links nach rechts: oben T2 FS ax, DWI ax, T2 FS cor; unten T1 ax, T1 FS KM ax und cor. Etwas Umgebungsreaktion um den Tumor ist nicht klassisch; typischerweise klar nach aussen abgrenzt.

Wikipedia • CC BY-SA 4.0

pleomorphic adenoma of parotid (cytology confirmed) in ultrasound

pleomorphic

adenoma of parotid (cytology confirmed) in ultrasound

Wikipedia • CC BY-SA 3.0

Parotid gland oncocytoma: a case report. Computer tomography (CT) findings: tumour mass of the left parotid gland.

Parotid gland

oncocytoma: a case report. Computer tomography (CT) findings: tumour mass of the left parotid gland.

casesjournal.biomedcentral.com • CC-by-3.0

Imaging of the sublingual and submandibular spaces. Pleomorphic adenoma of the submandibular gland. a Axial and b coronal contrast-enhanced CT images demonstrate an enhancing well-circumscribed round mass within the inferior aspect of the right submandibular gland (arrow)

Imaging of

the sublingual and submandibular spaces. Pleomorphic adenoma of the submandibular gland. a Axial and b coronal contrast-enhanced CT images demonstrate an enhancing well-circumscribed round mass within the inferior aspect of the right submandibular gland (arrow)

insightsimaging.springeropen.com • Open Access

Imaging of the sublingual and submandibular spaces. Adenoid cystic carcinoma of the sublingual gland. a Axial T2-weighted and b T1-weighted MR images of the sublingual space demonstrate a lobulated high T2 signal and low T1 signal lesion enlarging and distorting the left sublingual gland (arrow). c There is diffuse enhancement on the axial post-contrast T1-weighted MR image

Imaging of

the sublingual and submandibular spaces. Adenoid cystic carcinoma of the sublingual gland. a Axial T2-weighted and b T1-weighted MR images of the sublingual space demonstrate a lobulated high T2 signal and low T1 signal lesion enlarging and distorting the left sublingual gland (arrow). c There is diffuse enhancement on the axial post-contrast T1-weighted MR image

insightsimaging.springeropen.com • Open Access

Salivary gland tumors • Parotid gland (diagram) - Ganzer Fall bei Radiopaedia

Salivary

gland tumors • Parotid gland (diagram) - Ganzer Fall bei Radiopaedia

Illustrations G, Parotid gland (diagram). Case study, Radiopaedia.org (Accessed on 04 Dec 2023) https://doi.org/10.53347/rID-10449 • CC by-nc-sa 3.0 (modified)

Warthin tumor • Salivary gland tumor subtypes (table) - Ganzer Fall bei Radiopaedia

Warthin tumor

• Salivary gland tumor subtypes (table) - Ganzer Fall bei Radiopaedia

Gaillard, F. Salivary gland tumor subtypes (table). Case study, Radiopaedia.org. (accessed on 25 Oct 2022) https://doi.org/10.53347/rID-36047 • CC by-nc-sa 3.0 (modified)

Pleomorphic adenoma of the salivary glands • Submandibular gland pleomorphic adenoma - Ganzer Fall bei Radiopaedia

Pleomorphic

adenoma of the salivary glands • Submandibular gland pleomorphic adenoma - Ganzer Fall bei Radiopaedia

Saber, M. Submandibular gland pleomorphic adenoma. Case study, Radiopaedia.org. (accessed on 25 Oct 2022) https://doi.org/10.53347/rID-89387 • CC by-nc-sa 3.0 (modified)

Mucoepidermoid carcinoma of salivary glands • Mucoepidermoid carcinoma - parotid - Ganzer Fall bei Radiopaedia

Mucoepidermoid

carcinoma of salivary glands • Mucoepidermoid carcinoma - parotid - Ganzer Fall bei Radiopaedia

Gaillard F, Mucoepidermoid carcinoma - parotid. Case study, Radiopaedia.org (Accessed on 04 Jan 2023) https://doi.org/10.53347/rID-4298 • CC by-nc-sa 3.0 (modified)

Pleomorphic adenoma of the salivary glands • Pleomorphic adenoma - Ganzer Fall bei Radiopaedia

Pleomorphic

adenoma of the salivary glands • Pleomorphic adenoma - Ganzer Fall bei Radiopaedia

Gaillard, F. Pleomorphic adenoma. Case study, Radiopaedia.org. (accessed on 25 Oct 2022) https://doi.org/10.53347/rID-4963 • CC by-nc-sa 3.0 (modified)

Salivary gland tumors • Oncocytoma of salivary glands - submandibular - Ganzer Fall bei Radiopaedia

Salivary

gland tumors • Oncocytoma of salivary glands - submandibular - Ganzer Fall bei Radiopaedia

Patel M, Oncocytoma of salivary glands - submandibular. Case study, Radiopaedia.org (Accessed on 04 Dec 2023) https://doi.org/10.53347/rID-9371 • CC by-nc-sa 3.0 (modified)

Salivary gland tumors • Parotid lymphoma: involving parotid tail - Ganzer Fall bei Radiopaedia

Salivary

gland tumors • Parotid lymphoma: involving parotid tail - Ganzer Fall bei Radiopaedia

spaces H, Parotid lymphoma: involving parotid tail. Case study, Radiopaedia.org (Accessed on 04 Dec 2023) https://doi.org/10.53347/rID-28379 • CC by-nc-sa 3.0 (modified)

Pleomorphic adenoma of the salivary glands • Submandibular gland pleomorphic adenoma - Ganzer Fall bei Radiopaedia

Pleomorphic

adenoma of the salivary glands • Submandibular gland pleomorphic adenoma - Ganzer Fall bei Radiopaedia

Saber, M. Submandibular gland pleomorphic adenoma. Case study, Radiopaedia.org. (accessed on 25 Oct 2022) https://doi.org/10.53347/rID-89387 • CC by-nc-sa 3.0 (modified)

Salivary gland tumors • Lymphoepithelial carcinoma - submandibular gland - Ganzer Fall bei Radiopaedia

Salivary

gland tumors • Lymphoepithelial carcinoma - submandibular gland - Ganzer Fall bei Radiopaedia

Haouimi A, Lymphoepithelial carcinoma - submandibular gland. Case study, Radiopaedia.org (Accessed on 04 Dec 2023) https://doi.org/10.53347/rID-147017 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

Salivary gland tumors are variable in location, origin, and malignant potential.

Pathology

In general, the ratio of benign to malignant tumors is proportional to the gland size; i.e. the parotid gland tends to have benign neoplasms, the submandibular gland 50:50, and the sublingual glands and accessory glands mostly malignant. Due to the size discrepancy, in absolute numbers, the parotid gland has the most tumors.

Location

parotid gland: 70%
minor salivary glands (including sublingual): 22% with the palate being most frequent (see: minor salivary gland tumors)
submandibular gland: 8%

Overall ~80% of all parotid masses are benign and the majority of these are pleomorphic adenomas.

Subtypes

Benign

epithelial
- pleomorphic adenoma: this is the most common (≈50%) tumor of the parotid
- Warthin tumor: essentially only found in the parotid, in older, usually male patients; it is bilateral in 10-15%
- intraductal papilloma of salivary glands
- oncocytoma of salivary glands
- myoepithelioma: until recently considered a subtype of pleomorphic adenoma; they can also originate in breast and bronchus
non-epithelial

Malignant

mucoepidermoid carcinoma: most of the malignant lesions
adenoid cystic carcinoma
myoepithelioma
adenocarcinoma (not otherwise specified)
acinic cell carcinoma of salivary glands
squamous cell carcinoma of salivary glands
malignant mixed tumors of the salivary glands
- carcinoma ex pleomorphic adenoma
- carcinosarcoma (true mixed tumor of the salivary glands)
- metastasizing pleomorphic adenoma
salivary duct carcinoma
metastases (mostly to intraparotid lymph nodes)
- cutaneous squamous cell carcinoma
- malignant melanoma
- testicular seminoma (rare)
lymphoma (rare)
- primary: arising from the parotid gland as a MALToma
- secondary: involving the intraparotid lymph nodes

Tumoren der Speicheldrüsen

Pathology

Location

Subtypes

Benign

Malignant

See also

Siehe auch:

und weiter: