Breast lumps epidemiology and demographics: Difference between revisions
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shadan Mehraban, M.D.[2]
Overview
The incidence rate of breast lumps is not particularly clear due to the fact that breast lumps is not considered as a life threatening condition and majority of the women who receives medical therapies or surgeries come into account.The prevalence of benign breast disease is approximately 68% among all breast diseases and the incidence of breast diseases is higher on the left upper/outer quadrant of breast. Fibrocystic diseases are more frequent in age of 40-44 years and fibroadenoma is more frequent between 15-35 years. Fibroadenoma rate is higher in black women. African-American women have worse prognosis and higher mortality rate in comparison European American women.
Epidemiology and Demographics
Incidence
- The incidence rate of benign breast disease is unclear due to the fact that breast lumps is not considered as a life threatening condition.[1]
- Majority of the women who receives medical therapies or surgeries come into account.
- Particular detection rate is unknown and not estimated.
Prevalence
- The prevalence of benign breast disease is approximately 68% among all breast diseases.[2]
- Approximately 60% of benign breast diseases occur in left breast and 40% in the right breast.
- 100% of definite palpable lumps are characteristics of fibroadenoma, phyllodes tumor, and adenomyoepithelioma.
- 64% of lumps located in upper outer quadrant, 26% of lumps in lower outer quadrant, 10% of lumps in upper inner quadrant.
Age
Age-specific incidence rate of benign breast diseases.[1]
- The incidence rate of fibrocystic disease is 137 per 100,000 in women aged 25-29 years, 411 per 100,000 in age of 40-44 years and 387 per 100,000 in 45-49 years.
- The incidence rate of fibroadenoma is 115 per 100,000 in women aged 20-24 years.
- The peak incidence rate of fibroadenoma is between 15-35 years.[3]
- Fibrocystic disease, phyllodes tumor, and adenomyoepithelioma are usually seen in 3rd and 4th decade of life.[2]
Race
- African American women have worse prognosis and higher mortality rate in comparison to European American women.[4]
- European American women have higher incidence rate of breast cancers.
- The prevalence of fibroadenoma is higher in black women than white individuals.[5]
References
- ↑ 1.0 1.1 Goehring C, Morabia A (1997). "Epidemiology of benign breast disease, with special attention to histologic types". Epidemiol Rev. 19 (2): 310–27. PMID 9494790.
- ↑ 2.0 2.1 M, Dr. Vijayalakshmi; Rao, Dr. J Yadigiri; Shekar, Dr. T.Y.; Balakrishnan, Dr. Shobha; M, Dr. Divya; K, Dr. Sameera; N, Dr. Alekya; JVNK, Dr. Aravind (2016). "Prevalence of Benign Breast Disease and Risk of Malignancy in Benign Breast Diseases". IOSR Journal of Dental and Medical Sciences. 15 (08): 32–36. doi:10.9790/0853-1508083236. ISSN 2279-0861.
- ↑ Hughes LE, Mansel RE, Webster DJ (1987). "Aberrations of normal development and involution (ANDI): a new perspective on pathogenesis and nomenclature of benign breast disorders". Lancet. 2 (8571): 1316–9. PMID 2890912.
- ↑ Gupta V, Haque I, Chakraborty J, Graff S, Banerjee S, Banerjee SK (2018). "Racial disparity in breast cancer: can it be mattered for prognosis and therapy". J Cell Commun Signal. 12 (1): 119–132. doi:10.1007/s12079-017-0416-4. PMC 5842180. PMID 29188479.
- ↑ Oluwole SF, Freeman HP (1979). "Analysis of benign breast lesions in blacks". Am J Surg. 137 (6): 786–9. PMID 453472.