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Hurthle Cell Carcinoma

Updated : September 18, 2022





Background

The four forms of thyroid cancer historically recognized are anaplastic, medullary, papillary, and follicular. The distinct category of thyroid carcinoma included papillary, medullary, and follicular carcinoma. One of the less well-known kinds of thyroid cancer is thyroid HCC (hurthle cell carcinoma).

It was once thought to be a subtype of follicular thyroid carcinoma. In terms of clinical appearance and metastatic dissemination pattern, it resembles thyroid follicular carcinoma in several ways.

However, due to considerable histopathological and molecular distinctions from follicular thyroid carcinoma, the World Health Organization recognized it as a separate tumor type in 2017. HCC is now recognized as cancer “produced” from follicular thyroid cells rather than a subtype of follicular carcinoma.

Epidemiology

About five percent of differentiated thyroid carcinomas are Hurthle cell carcinomas. Females experience it more commonly, and it is typically diagnosed after the age of forty.

Anatomy

Pathophysiology

When they take the form of Hurthle cell adenomas, Hurthle cell tumors might be benign. HCCs that have metastasized are known for their capsular penetration, thyroid gland, vascular invasion, metastatic dissemination, and distant involvement of lymph nodes.

The ATPase 6 gene, which aids in preserving the integrity of the mitochondrial genome, is thought to have germline variants that have a role in the development of HCC.

Common deletions in the mitochondrial genome have been discovered to be more prevalent in HCC than in other tumor types.

Etiology

For Hurthle cell thyroid cancer, no defined direct causal linkages exist.

At this time, it is known that radiation exposure to the chest, head, and neck, as well as a family background of thyroid carcinoma, increases the risk of thyroid carcinoma.

Genetics

Prognostic Factors

According to case studies, compared to follicular thyroid carcinoma, HCC is more severe, has a greater rate of dissemination, and has a poorer overall rate of survival.

Hurthle cell carcinomas are thought to have negative prognostic characteristics such as older age, extra-thyroid expansion, higher stage at diagnostic testing, female gender, and greater tumor size at diagnosis.

Clinical History

Physical Examination

Age group

Associated comorbidity

Associated activity

Acuity of presentation

Differential Diagnoses

Laboratory Studies

Imaging Studies

Procedures

Histologic Findings

Staging

Treatment Paradigm

by Stage

by Modality

Chemotherapy

Radiation Therapy

Surgical Interventions

Hormone Therapy

Immunotherapy

Hyperthermia

Photodynamic Therapy

Stem Cell Transplant

Targeted Therapy

Palliative Care

Medication

Media Gallary

References

https://www.ncbi.nlm.nih.gov/books/NBK568736/

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Hurthle Cell Carcinoma

Updated : September 18, 2022




The four forms of thyroid cancer historically recognized are anaplastic, medullary, papillary, and follicular. The distinct category of thyroid carcinoma included papillary, medullary, and follicular carcinoma. One of the less well-known kinds of thyroid cancer is thyroid HCC (hurthle cell carcinoma).

It was once thought to be a subtype of follicular thyroid carcinoma. In terms of clinical appearance and metastatic dissemination pattern, it resembles thyroid follicular carcinoma in several ways.

However, due to considerable histopathological and molecular distinctions from follicular thyroid carcinoma, the World Health Organization recognized it as a separate tumor type in 2017. HCC is now recognized as cancer “produced” from follicular thyroid cells rather than a subtype of follicular carcinoma.

About five percent of differentiated thyroid carcinomas are Hurthle cell carcinomas. Females experience it more commonly, and it is typically diagnosed after the age of forty.

When they take the form of Hurthle cell adenomas, Hurthle cell tumors might be benign. HCCs that have metastasized are known for their capsular penetration, thyroid gland, vascular invasion, metastatic dissemination, and distant involvement of lymph nodes.

The ATPase 6 gene, which aids in preserving the integrity of the mitochondrial genome, is thought to have germline variants that have a role in the development of HCC.

Common deletions in the mitochondrial genome have been discovered to be more prevalent in HCC than in other tumor types.

For Hurthle cell thyroid cancer, no defined direct causal linkages exist.

At this time, it is known that radiation exposure to the chest, head, and neck, as well as a family background of thyroid carcinoma, increases the risk of thyroid carcinoma.

According to case studies, compared to follicular thyroid carcinoma, HCC is more severe, has a greater rate of dissemination, and has a poorer overall rate of survival.

Hurthle cell carcinomas are thought to have negative prognostic characteristics such as older age, extra-thyroid expansion, higher stage at diagnostic testing, female gender, and greater tumor size at diagnosis.

https://www.ncbi.nlm.nih.gov/books/NBK568736/

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