1. Jayaram G, Othman MA, Kumar M, Krishnan G. Papillary cystic type of acinic cell carcinoma of parotid: Fine needle aspiration cytological features of a high grade variant with oncocytic metaplasia. Malays J Pathol 2002;24:107‐12. 2. Shah A, Patwari M, Deshmukh RS. Acinic cell carcinoma, papillary‐cystic variant of the parotid gland: A case report with review of literature. Oral Oncol Extra 20...

BACKGROUND Thyroid nodules with cystic content or mixed sponge-like aspect on ultrasonography and a concordant cytology are strongly predictive of benignity. OBJECTIVES We present 8 patients with honeycomb-like papillary thyroid carcinoma with multiple small cysts on ultrasonography. METHODS The patients were 6 women and 2 men aged between 30 and 57 years. The tumors of these patients showe...

CONTEXT Development of calcifying foci is a common finding in human thyroid papillary carcinoma, but its mechanisms remain unknown. OBJECTIVE We therefore investigated whether osteocalcin and/or Cbfa-1 genes are expressed in malignant thyroid epithelial cells. We also studied the effects of Cbfa-1 on the expression of osteoblast-specific and thyrotropin receptor genes in thyrocytes. RESULTS...

Papillary thyroid carcinoma is a common malignancy to affect the thyroid and is typified by a nonaggressive nature and low rates of mortality. In contrast, anaplastic thyroid carcinoma is the most aggressive thyroid malignancy with a mortality rate of nearly 90% and survival typically of only six months after the diagnosis is made. The transformation of papillary thyroid carcinoma to anaplastic...

Although infrequently, mucin secretion has previously been reported in papillary renal cell carcinoma. We here investigate the presence of mucin in a series of 93 renal papillary adenomas in 58 patients. Acid mucin was present in four cases (4.3% of the tumors; 6.9% of the patients), in which basophilic mucin secretion was evident with hematoxylin-eosin. To the best of our knowledge mucin secre...

Introduction: Acinic cell carcinoma is an uncommon low grade tumour of the salivary glands that constitutes 2.5 to 4% of parotid gland tumours. Acinic cell carcinoma -Papillary cystic variant (ACC-PCV) is histologically composed of tumor with papillary and cystic growth patterns, with varying proportions of one or more cell types. It has been conferred significance because it has a poorer progn...

The prognosis and overall outcome of solid growth pattern in differentiated papillary carcinoma of thyroid is controversial. While general consensus suggest outcomes similar to typical papillary carcinomas others demonstrate a more aggressive biology. We present a case of differentiated papillary carcinoma of thyroid with solid growth pattern presenting with neck swelling and widespread skeleta...

A 55-year-old female underwent total thyroidectomy for medullary carcinoma of the left lobe of the thyroid. The right lobe showed an incidental occult papillary carcinoma. There was also diffuse lymphocytic thyroiditis. Immunohistochemistry for calcitonin and thyroglobin confirmed the separate histogenesis for both carcinomas. The coexistence of medullarry and papillary carcinoma of the thyroid...