**Question:** True regarding Papillary carcinoma of thyroid is: March 2008

**Core Concept:** Papillary thyroid carcinoma (PTC) is one of the most common types of thyroid cancer. It arises from follicular cells of the thyroid gland and is characterized by its slow growth rate and good prognosis when diagnosed and treated appropriately.

**Why the Correct Answer is Right:** Papillary thyroid carcinoma is a well-differentiated thyroid cancer, meaning it closely resembles the normal thyroid cells in terms of histology and function. This type of cancer is typically indolent, meaning it grows slowly and does not cause immediate harm to the patient. In March 2008, the American Thyroid Association (ATA) guidelines were updated, emphasizing the importance of fine-needle aspiration biopsy (FNAB) in the diagnosis of thyroid nodules. This update highlights the fact that PTC is a disease that can be detected and managed effectively with appropriate diagnostic measures and treatment plans.

**Why Each Wrong Option is Incorrect:**

A. False: Papillary carcinoma does not always have a poor prognosis. As mentioned, it is a well-differentiated tumor, which means it grows slowly and has a generally favorable prognosis when diagnosed and treated appropriately.

B. False: Papillary carcinoma is not exclusive to a certain age group or gender. It can occur in individuals of any age and both genders equally.

C. False: Papillary carcinoma is not always an aggressive neoplasm. As mentioned, it is a well-differentiated tumor, which means it grows slowly and has a generally favorable prognosis when diagnosed and treated appropriately.

D. False: Papillary carcinoma is not always curable with surgery alone. Appropriate management involves a combination of surgery, radioactive iodine therapy, and sometimes external beam radiation therapy, depending on the tumor characteristics and patient factors.

**Clinical Pearl:** The ATA guidelines update in March 2008 emphasize the importance of FNAB in diagnosing thyroid nodules, particularly for PTC. This update highlights that Papillary carcinoma is a disease that can be effectively detected and managed with appropriate diagnostic measures and treatment plans, even though it is a slow-growing tumor with a generally favorable prognosis. It is crucial for medical professionals to consider the latest guidelines when managing patients with thyroid nodules and thyroid cancer.