- uncommon
- from thyroid C-cells
- APUD cell tumour
- commonly synthesises ands secretes calcitonin (but no clinical effects
in otherwise normal individuals)
- may secrete other products such as serotonin → carcinoid
syndrome
Histology
- sheets of neoplastic cells
- hyaline stroma
- amyloid staining pattern
Spread
- local
- lymphatic
- haematogenous
History
Examination
- lump feels stony hard
- due to infiltration of amyloid
Prognosis
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