1. Metastasis of a Dorsal Melanoma to a Pituitary Adenoma Mimicking Pituitary Apoplexy
- Author
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Rui Ramos, Maria João Machado, Cristiano Antunes, Vera Fernandes, Olinda Marques, and Rui Almeida
- Subjects
tumour-to-tumor metastasis ,pituitary adenoma ,melanoma ,apoplexy ,Medicine ,Surgery ,RD1-811 - Abstract
Metastases to pituitary adenomas are very rare. From the 20 cases found in the literature, none originated from a cutaneous melanoma. We present the case of a 67-year-old man with a history of transcranial approach to treat a pituitary macroadenoma followed by adjuvant radiotherapy. Fifteen years later, he presented a dorsal nodular melanoma, and three years after that, he developed symptoms of pituitary apoplexy. He was submitted to transsphenoidal surgery, and the histology result revealed metastasis of the melanoma into a pituitary adenoma. The similarity in the clinical presentation of the two entities—pituitary apoplexy and metastasis of the melanoma into a pituitary adenoma—and the rarity of this type of metastization alert to challenges in the differential diagnosis that may confound the neurosurgeon's decision.
- Published
- 2017
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