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Acromegaly is associated with increased growth hormone (GH) and insulin-like growth factor-I (IGF-I) secretion which may support tumour development and growth. A 68-year-old woman was diagnosed with acromegaly due to typical clinical and hormonal characteristics. While contrast-enhanced MRI at diagnosis did not reveal a pituitary adenoma, a 5-mm lesion was identified on repeat scanning 13 months later. Abdominal and chest CT showed tumours of the stomach, right adrenal gland, and right lung. The CT also showed a hypodense lesion in the liver and heterogeneous echostructure of the thyroid gland with left lobe solid-cystic tumour. Somatostatin receptor scintigraphy revealed increased tracer accumulation in the right thyroid lobe. No tracer accumulation was noted at the location of the other tumours. The resected stomach, adrenal, chest, and thyroid lesions did not show GH secretion. The patient refused pituitary surgery, and her acromegaly is currently well-controlled with somatostatin analogue therapy. A CT scan 19 months later revealed a contrast-enhancing left kidney tumour that was a G1-grade clear cell carcinoma. Four years after the acromegaly diagnosis multiple myeloma were diagnosed with secondary renal amyloidosis. Genetic screening for a paraganglioma gene panel, AIP, MEN1, and CDKN1B mutations were negative. A next-generation cancer panel containing 94 cancer genes did not identify any possible unifying gene abnormality in her germline DNA. Coexistence of acromegaly and numerous other tumours suggests a common aetiology of these disorders. However, no genetic abnormality could be identified with the tests that have been performed.

endokrynologia polska

Acromegaly associated with GIST, non-small cell lung carcinoma, clear cell renal carcinoma, multiple myeloma, medulla oblongata tumour, adrenal adenoma, and follicular thyroid nodules