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salivary gland tumours - Coggle Diagram
salivary gland tumours
beningn tunmours
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PLEOMORPHIC ADENOMA
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HISTOLOGICAL FEATURES:
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Cartilage, sometimes calcified.
Clinical Features
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Well delimitated, not fixed to underlying tissues
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Epidemiology
75 % in parotid gland, followed by minor salivary glands.
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concept
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aetiology
Occupations: factories cauchogoma, agricultural professions
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classification
Node (N): Has the tumor spread to the lymph nodes? If so, where and how many?
Metastasis (M): Has the cancer spread to other parts of the body? If so, where and how much?
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diagnosis
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Imaging tests: CT, MRI, sialography, gammagraphy(tecnecio99), ecography, ortopantomography, fine-needle aspiration, intraoperatory biopsy
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Histopathology: FNA, BIOPSY
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malignant tumours
ACINIC CELL CARCINOMA
Clinical Features
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Solid mass of slow growth, rounded (uni/multilocular)
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Histology
Cellular patterns: Solid, microcystic, papillary-cystic and follicular.
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ADENOID CYSTIC CARCINOMA
clinical features
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Painful, firm to palpation
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Tend to infiltrate along nerve sheaths, late metastasis
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Histology
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Other paterns: SOLID, TUBULAR SALIVARY GLAND
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MUCOEPIDERMOID CARCINOMA
Treatment: wide excision, but may recur. RT (HDM)
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Clinical features
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C.M of high degree of malignancy: mass of rapid growth and it provokes pain as an early symptom . Facial nerve paralysis is frequent. It is the variant of worse prognosis.
Epidemiology
Location: parotid gland (70 %) followed by the minor salivary glands (20 %) and the submaxillary (10 %).
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