Compromiso de seno cavernoso como presentación de cáncer anaplásico de tiroides / Cavernous sinus involvement as presentation of anaplastic thyroid cancer

Anaplastic thyroid cancer is an uncommon malignant tumor, usually fatal, primarily affecting older adults and doesn't have effective systemic therapy. The median survival is less than 6 months from diagnosis. Brain metastases are low frequency and reach 18 percent. We present the case of a patient with papillary carcinoma of the thyroid who takes an aggressive form, becoming anaplastic carcinoma, with involvement of the central nervous system (CNS) manifested by paralysis of the cranial nerve IV, which is rare clinical condition.

Cáncer diferenciado de tiroides en tiroides lingual, presentación de un caso / Differentiated thyroid cancer in the lingual thyroid, presentation of a case

The lingual thyroid carcinoma is very uncommon neoplasia with an incidence of less than 1 percent. The papillary variant is the most frequent. Cervical MRI helps differentiate muscle from thyroid tissue. The definitive diagnosis is given by histology. Management is similar to that of orthotopic thyroid cancer. We present the case of a 23-year-old woman with hypothyroidism undergoing treatment with dysphagia and sensation of pharyngeal foreign body and malodorous oral bleeding. Nasopharyngoscopy showed a rounded mass at the base of the tongue; the biopsy was compatible with thyroid neoplasia. Image study with ultrasound confirms empty thyroid bed with presence of lingual ectopic thyroid. The team of surgeons performed surgery with Trotter Technique, they removed a tumor of 4 centimeters of diameter. The definitive biopsy concludes minimally invasive follicular carcinoma. The treatment was completed with 100 mCi of radioiodine. Systemic screening at 7 days was negative, as the post-operative thyroglobulin (Tg)