Difference between revisions of "Leydig cell hyperplasia"
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DDx: | DDx: | ||
*[[Leydig cell tumour]]. | *[[Leydig cell tumour]]. | ||
==Sign out== | |||
<pre> | |||
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. They are | |||
NEGATIVE for D2-40 and PLAP. | |||
</pre> | |||
==See also== | ==See also== | ||
Revision as of 21:41, 25 May 2016
| Leydig cell hyperplasia | |
|---|---|
| Diagnosis in short | |
|
| |
| 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
- May be seen in the context of Klinefelter syndrome.[2]
Gross
- Unremarkable gross appearance
Note:
- Hypoechoic lesions on ultrasound - often multiple, small.[2]
Microscopic
Features:
- Abundant Leydig cells interspersed between seminiferous tubules with only Sertoli cells.
- Do not displace or compress the seminiferous tubules.
Note:
- May form nodules up to 6 mm.[1]
DDx:
Sign out
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. They are NEGATIVE for D2-40 and PLAP.
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.