[358] Hyperplasia of the C cells (HCC) is the earliest histologic finding prior to the development of a microcarcinoma, when patients present with MEN2. HCC appears soon after birth, and at this ...

Retesting after stimulation is necessary to discriminate between malignant C-cell disease and benign conditions. In families with inherited forms of MTC, calcitonin screening has been largely ...

Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia (DIPNECH) is a rare lung condition characterized by the abnormal growth of neuroendocrine cells in the lungs. It primarily affects ...

Sexual precocity and a testicular mass can result from a Leydig cell tumor or from simple virilizing CAH with adrenal rests in the testes. These diagnoses are usually distinguished by very high ...