Hyalinizing parathyroid adenoma and hyperplasia: report of 3 cases of an unusual histologic variant

Fibrosis in the parathyroid glands can be seen in adenomas, in carcinomas, and after fine needle aspiration of the thyroid gland. Fibrosis occurs in approximately 10% of typical adenomas and in all atypical adenomas. This is usually in the form of fibrous bands or trabeculae that intersect the hypercellular parenchyma. However, widespread diffuse fibrosis or sclerosis in either parathyroid gland hyperplasia or adenoma has not been reported before in the English medical literature. We report 3 cases of hyperparathyroidism (2 adenomas and 1 hyperplasia) with an unusual pattern of sclerosis. The hyalinized, eosinophilic fibrous tissue was diffusely distributed within and around the parathyroid parenchyma, often isolating groups of cells and single cells. (C) 2011 Elsevier Inc. All rights reserve

Refractory human cutaneous protothecosis

A 67-year-old Scottish woman presented to her general practitioner with a subcentimeter lump between her shoulder blades. The lump was suspected to be an epidermal cyst and was excised. The patient had a history of controlled diabetes. Most summers, she spent a month near a beach resort in Mexico. The lump reappeared after 6 months within the scar area and was re- excised. Both skin excisions were performed in the primary care setting without histologic assessment