Cases of simultaneously occurring medullary thyroid carcinoma (MTC) and lymphoma are extremely rare. An 84-year-old woman visited the hospital due to dyspnea, resulting from rapidly aggravated enlarged neck mass. Ultrasonography revealed two lesions in the thyroid and they were diagnosed as concurrent medullary thyroid carcinoma and diffuse large B cell lymphoma after total thyroidectomy. A few cases simultaneously diagnosed with MTC and systemic lymphoma have been reported. However, the coexistence of MTC and primary thyroid lymphoma is extremely rare.
Aged, 80 and over ; Carcinoma, Medullary ; Dyspnea ; Female ; Humans ; Lymphoma ; Lymphoma, B-Cell ; Neck ; Thyroid Gland ; Thyroid Neoplasms ; Thyroidectomy ; Ultrasonography

A 35-year-old male presented with atypical aphasia following left anterior choroidal artery infarction associated with distal internal carotid artery dissection. He presented with 1) lexical-semantic deficit without semantic impairment, 2) frequent surface errors (both surface dyslexia and dysgraphia), and 3) intact non-word reading/repetition (preserved sub-lexical route), suggesting deficit in the phonological output lexicon. Diffusion-tensor tractography analysis revealed disruption in the inferior fronto-occipital fasciculus and inferior longitudinal fasciculus, which might serve as potential subcortical neural correlates for phonological output lexicon.