Salivary gland tumors
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.
Parotid gland
oncocytoma: a case report. Computer tomography (CT) findings: tumour mass of the left parotid gland.
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. 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
Salivary
gland tumors • Parotid gland (diagram) - Ganzer Fall bei Radiopaedia
Warthin tumor
• Salivary gland tumor subtypes (table) - Ganzer Fall bei Radiopaedia
Pleomorphic
adenoma of the salivary glands • Submandibular gland pleomorphic adenoma - Ganzer Fall bei Radiopaedia
Mucoepidermoid
carcinoma of salivary glands • Mucoepidermoid carcinoma - parotid - Ganzer Fall bei Radiopaedia
Pleomorphic
adenoma of the salivary glands • Pleomorphic adenoma - Ganzer Fall bei Radiopaedia
Salivary
gland tumors • Oncocytoma of salivary glands - submandibular - Ganzer Fall bei Radiopaedia
Lipoma •
Parotid lipoma - Ganzer Fall bei Radiopaedia
Salivary
gland tumors • Parotid lymphoma: involving parotid tail - Ganzer Fall bei Radiopaedia
Pleomorphic
adenoma of the salivary glands • Submandibular gland pleomorphic adenoma - Ganzer Fall bei Radiopaedia
Salivary
gland tumors • Lymphoepithelial carcinoma - submandibular gland - Ganzer Fall bei Radiopaedia
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
See also
Siehe auch:
- pleomorphes Adenom der Glandula parotis
- Hämangiom
- Pleomorphes Adenom
- Warthin-Tumor
- Parotistumoren
- Adenoid-zystisches Karzinom
- zystische Läsionen der Glandula parotis
- Lymphangiom
- myoepithelioma
- Lipom der Speicheldrüsen
- Lipom der Glandula parotis
- acinic cell carcinoma of salivary glands
- minor salivary gland tumour
- Biopsie Glandula parotis
- Hämangiom Glandula parotis
- staging of malignant salivary gland tumours
- Speicheldrüsenmetastasen
- Vergrößerung der Glandula parotis
- maligne Tumoren der Parotis
- mukoepidermoides Karzinom
- Onkozytom der Speicheldrüsen
- Lungenkarzinome vom Speicheldrüsentyp
- polymorphes Adenokarzinom
und weiter:
- sublingual gland
- Glandula parotidea
- parapharyngeal space
- parotid space
- carcinoma ex pleomorphic adenoma
- minor salivary glands
- major salivary glands
- parotid adenocarcinoma
- malignant salivary gland tumour staging
- Tumoren der Nasenhaupthöhle
- Tumoren der Mundhöhle
- Adenoid-zystisches Karzinom der Speicheldrüsen
- Adenoid-zystisches Karzinom der Glandula sublingualis
Assoziationen und Differentialdiagnosen zu Tumoren der Speicheldrüsen: 
Lungenkarzinome
vom Speicheldrüsentyp