Papillary thyroid cancer: Difference between revisions

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= Papillary Thyroid Cancer =
{{Infobox medical condition
| name = Papillary thyroid cancer
| image = Cytopathology of papillary thyroid carcinoma.png
| caption = Cytopathology of papillary thyroid carcinoma
| field = [[Endocrinology]]
| symptoms = Lump in the neck, difficulty swallowing, hoarseness
| complications = Metastasis, recurrence
| onset = Middle-aged adults
| types = Classic, follicular variant, tall cell variant
| causes = Genetic mutations, radiation exposure
| diagnosis = Ultrasound, fine needle aspiration biopsy
| treatment = Surgery, radioactive iodine, thyroid hormone therapy
| prognosis = Generally good with treatment
}}


== Introduction ==
'''Papillary thyroid cancer''' (PTC) is the most common type of [[thyroid cancer]], accounting for approximately 80% of all thyroid cancer cases. It arises from the follicular cells of the thyroid gland and is characterized by its distinctive papillary architecture.
Papillary thyroid cancer (PTC) is the most common type of thyroid cancer, characterized by its growth in small, finger-like projections. It typically develops in the follicular cells of the thyroid gland and is known for its slow progression. PTC is more prevalent in women than men and often occurs before the age of 45.


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==Epidemiology==
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Papillary thyroid cancer is more prevalent in women than in men and typically presents in middle-aged adults. It is the most common thyroid cancer in children and young adults.
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== Characteristics ==
==Pathophysiology==
PTC generally grows slowly and may develop in one or both lobes of the thyroid gland. It is known for its distinctive papillary structures and is often associated with a good prognosis when diagnosed early.
Papillary thyroid cancer originates from the follicular cells of the thyroid gland. It is often associated with genetic mutations such as BRAF and RET/PTC rearrangements. Exposure to ionizing radiation, especially during childhood, is a well-known risk factor.


== Risk Factors ==
==Clinical Presentation==
Risk factors for PTC include:
Patients with papillary thyroid cancer may present with a palpable nodule in the neck, difficulty swallowing, or hoarseness. However, many cases are asymptomatic and are discovered incidentally during imaging for other reasons.
* Gender, with a higher prevalence in women.
* Age, with a common occurrence before age 45.
* Genetic predispositions.
* Exposure to ionizing radiation, especially during childhood.


== Symptoms ==
==Diagnosis==
In its early stages, PTC may not cause any symptoms. As it progresses, symptoms can include:
The diagnosis of papillary thyroid cancer is typically made through a combination of:
* A lump in the neck.
* [[Ultrasound]]: To evaluate the thyroid nodule's characteristics.
* Hoarseness or voice changes.
* [[Fine needle aspiration biopsy]]: To obtain cytological samples for analysis.
* Difficulty swallowing or breathing.
* Swollen lymph nodes in the neck.


[[File:Histopathology of papillary thyroid cancer in a thyroglossal cyst, high magnification, annotated.jpg|thumb|Ultrasound image of the thyroid, used in diagnosing thyroid cancer.]]
[[File:Papillary Carcinoma of the Thyroid Gland, Gross Appearance (22780603300).jpg|thumb|Gross appearance of papillary carcinoma of the thyroid gland]]


== Diagnosis ==
==Histopathology==
Diagnosis of PTC typically involves:
Histologically, papillary thyroid cancer is characterized by:
* Physical examination.
* Papillary structures
* Blood tests to assess thyroid function.
* Orphan Annie eye nuclei
* Imaging tests, such as ultrasound.
* Psammoma bodies
* Fine-needle aspiration biopsy for definitive diagnosis.


== Treatment ==
[[File:Papillary Carcinoma of the Thyroid.jpg|thumb|Histopathological image of papillary carcinoma of the thyroid]]
Treatment options for PTC depend on the stage and may include:
* Surgery to remove part or all of the thyroid gland.
* Radioactive iodine therapy.
* Thyroid hormone therapy.
* Radiation therapy or chemotherapy in advanced cases.


== Prognosis ==
==Treatment==
The prognosis for PTC is generally favorable, especially for patients diagnosed at an early stage. Regular follow-up and monitoring are essential for managing potential recurrences or metastasis.
The primary treatment for papillary thyroid cancer is surgical removal of the thyroid gland (thyroidectomy). Depending on the extent of the disease, this may be followed by radioactive iodine therapy to ablate any remaining thyroid tissue or metastatic disease. Patients are often placed on thyroid hormone replacement therapy to suppress TSH and reduce the risk of recurrence.


== Research and Advances ==
==Prognosis==
Ongoing research in the field of thyroid cancer includes the development of targeted therapies and improved diagnostic techniques.
The prognosis for papillary thyroid cancer is generally excellent, with a high survival rate, especially in younger patients and those with localized disease. Long-term follow-up is necessary to monitor for recurrence.


== External Links ==
==Also see==
* [Link to a medical resource on papillary thyroid cancer]
* [[Thyroid cancer]]
* [Link to a patient support group for thyroid cancer]
* [[Follicular thyroid cancer]]
* [[Medullary thyroid cancer]]
* [[Anaplastic thyroid cancer]]
* [[Thyroidectomy]]


== References ==
==References==
<references/>
* American Thyroid Association Guidelines
* National Cancer Institute
 
{{Thyroid diseases}}
{{Endocrine system}}


[[Category:Thyroid cancer]]
[[Category:Thyroid cancer]]
[[Category:Oncology]]
[[Category:Endocrine neoplasia]]
[[Category:Endocrine diseases]]
 
{{stub}}

Latest revision as of 02:53, 11 December 2024

Papillary thyroid cancer
Cytopathology of papillary thyroid carcinoma.png
Synonyms N/A
Pronounce N/A
Specialty N/A
Symptoms Lump in the neck, difficulty swallowing, hoarseness
Complications Metastasis, recurrence
Onset Middle-aged adults
Duration N/A
Types Classic, follicular variant, tall cell variant
Causes Genetic mutations, radiation exposure
Risks N/A
Diagnosis Ultrasound, fine needle aspiration biopsy
Differential diagnosis N/A
Prevention N/A
Treatment Surgery, radioactive iodine, thyroid hormone therapy
Medication N/A
Prognosis Generally good with treatment
Frequency N/A
Deaths N/A


Papillary thyroid cancer (PTC) is the most common type of thyroid cancer, accounting for approximately 80% of all thyroid cancer cases. It arises from the follicular cells of the thyroid gland and is characterized by its distinctive papillary architecture.

Epidemiology[edit]

Papillary thyroid cancer is more prevalent in women than in men and typically presents in middle-aged adults. It is the most common thyroid cancer in children and young adults.

Pathophysiology[edit]

Papillary thyroid cancer originates from the follicular cells of the thyroid gland. It is often associated with genetic mutations such as BRAF and RET/PTC rearrangements. Exposure to ionizing radiation, especially during childhood, is a well-known risk factor.

Clinical Presentation[edit]

Patients with papillary thyroid cancer may present with a palpable nodule in the neck, difficulty swallowing, or hoarseness. However, many cases are asymptomatic and are discovered incidentally during imaging for other reasons.

Diagnosis[edit]

The diagnosis of papillary thyroid cancer is typically made through a combination of:

File:Papillary Carcinoma of the Thyroid Gland, Gross Appearance (22780603300).jpg
Gross appearance of papillary carcinoma of the thyroid gland

Histopathology[edit]

Histologically, papillary thyroid cancer is characterized by:

  • Papillary structures
  • Orphan Annie eye nuclei
  • Psammoma bodies
File:Papillary Carcinoma of the Thyroid.jpg
Histopathological image of papillary carcinoma of the thyroid

Treatment[edit]

The primary treatment for papillary thyroid cancer is surgical removal of the thyroid gland (thyroidectomy). Depending on the extent of the disease, this may be followed by radioactive iodine therapy to ablate any remaining thyroid tissue or metastatic disease. Patients are often placed on thyroid hormone replacement therapy to suppress TSH and reduce the risk of recurrence.

Prognosis[edit]

The prognosis for papillary thyroid cancer is generally excellent, with a high survival rate, especially in younger patients and those with localized disease. Long-term follow-up is necessary to monitor for recurrence.

Also see[edit]

References[edit]

  • American Thyroid Association Guidelines
  • National Cancer Institute

0

Diseases of the endocrine system (E00–E35, 240–259)
Pancreas/
glucose
metabolism
Hypothalamic/
pituitary axes
Hypothalamus
Pituitary
Thyroid
Parathyroid
Adrenal
Height
Multiple
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