Difference between revisions of "Leydig cell hyperplasia"
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==General== | ==General== | ||
*Benign. | *Benign. | ||
*Uncommonly seen in pathology. | *Uncommonly seen in isolation by pathology. | ||
*May be seen in the context of ''[[Klinefelter syndrome]]''.<ref name=pmid26209412>{{Cite journal | last1 = Sterbis | first1 = J. | last2 = E-Nunu | first2 = T. | title = Leydig cell hyperplasia in the setting of Klinefelter syndrome. | journal = BMJ Case Rep | volume = 2015 | issue = | pages = | month = | year = 2015 | doi = 10.1136/bcr-2015-209805 | PMID = 26209412 }}</ref> | *May be seen in the context of ''[[Klinefelter syndrome]]''.<ref name=pmid26209412>{{Cite journal | last1 = Sterbis | first1 = J. | last2 = E-Nunu | first2 = T. | title = Leydig cell hyperplasia in the setting of Klinefelter syndrome. | journal = BMJ Case Rep | volume = 2015 | issue = | pages = | month = | year = 2015 | doi = 10.1136/bcr-2015-209805 | PMID = 26209412 }}</ref> | ||
Revision as of 14:26, 23 June 2016
| Leydig cell hyperplasia | |
|---|---|
| Diagnosis in short | |
 Leydig cell hyperplasia. H&E stain. (WC) | |
|
| |
| LM | abundant Leydig cells interspersed between seminiferous tubules with only Sertoli cells, Leydig cells do not displace or compress the seminiferous tubules |
| LM DDx | Leydig cell tumour, testicular adrenal rest tumour |
| Site | testis, ovary |
|
| |
| Prevalence | rare |
| Radiology | hypoechoic lesions on ultrasound, often multiple |
| Prognosis | benign |
Leydig cell hyperplasia is an uncommon benign pathology of the testis.[1] It may be seen in the ovary.
General
- Benign.
- Uncommonly seen in isolation by pathology.
- May be seen in the context of Klinefelter syndrome.[2]
Gross
Features:
- Unremarkable gross appearance of parenchyma. (???)
- Normal or small testis. (???)
Note:
- Hypoechoic lesions on ultrasound - often multiple, small.[2]
Microscopic
Features:
- Abundant Leydig cells interspersed between seminiferous tubules with only Sertoli cells.
- Leydig cells do not displace or compress the seminiferous tubules.
Note:
- May form nodules up to 6 mm.[1]
DDx:
Images
LCH - very low mag. (WC)
LCH - very low mag. (WC)
LCH - low mag. (WC)
LCH - intermed. mag. (WC)
LCH - high mag. (WC)
LCH - high mag. (WC)
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Testicle and Cord, Right, Orchitectomy: - Leydig cell hyperplasia. - Atrophic testis. - NEGATIVE for germ cell neoplasia in situ (intratubular germ cell neoplasia). - NEGATIVE for malignancy. Comment: Immunostains confirm the morphologic impression. The Leydig cells are POSITIVE for inhibin, calretinin and melan A. The section is NEGATIVE for PLAP and has a benign pattern for D2-40.
See also
References
- ↑ 1.0 1.1 Carucci, LR.; Tirkes, AT.; Pretorius, ES.; Genega, EM.; Weinstein, SP. (Feb 2003). "Testicular Leydig's cell hyperplasia: MR imaging and sonographic findings.". AJR Am J Roentgenol 180 (2): 501-3. doi:10.2214/ajr.180.2.1800501. PMID 12540460.
- ↑ 2.0 2.1 Sterbis, J.; E-Nunu, T. (2015). "Leydig cell hyperplasia in the setting of Klinefelter syndrome.". BMJ Case Rep 2015. doi:10.1136/bcr-2015-209805. PMID 26209412.