Primary Squamous Cell Carcinoma of the Thyroid.

Primary squamous cell carcinoma of the thyroid (PSCCT) is a rare malignancy of the head and neck, with fewer than 60 cases reported in the literature. We report a case of PSCCT and provide a brief review of the literature. A 66-year-old female with a history of a hemithyroidectomy for a benign thyroid lesion presented with 3 months of progressively worsening compressive symptoms and shortness of breath.

Acute ST-segment elevation myocardial infarction in a young patient with essential thrombocythemia: a case with long-term follow-up report.

Essential thrombocythemia (ET) is a neoplastic proliferation of mature myeloid cells - in particular, megakaryocytes - leading to persistently elevated platelet count. Usual clinical presentation is related to an increase in the risk of hemorrhage and/or thrombosis. Management of ET consists of antiplatelet therapies - mainly aspirin and cytoreductive therapies.

Levamisole-contaminated cocaine: an emergent cause of vasculitis and skin necrosis.

The prevalence of cocaine adulterated with levamisole-induced vasculitis is increasing and physicians should be aware of this unique entity. There have been many reports of cutaneous vasculitis syndrome caused by cocaine which is contaminated with levamisole. Levamisole was used as an antihelminth drug and later was rescinded from use in humans due to adverse effects.

From right to left heart failure: an unexpected transition.

Right and left heart failure are very common clinical syndromes with close correlation. Right-sided or right ventricular heart failure usually occurs as a result of left-sided failure. We report a very rare case of transition from right heart failure due to pulmonary embolism, followed by its resolution, to left heart failure due to Tako-tsubo syndrome within 48 h of hospitalization.