All are true about spermatocytic seminoma except:
Ans: a (3 types are there) Ref: Robbins, 7th ed, p. 1042Spermatocytic seminoma is a non seminomatous slow growing testicular tumour seen in old age. It does not have three types.Spermatocytic seminoma* Both clinically & histologically distinct from seminoma* Variant of germ cell tumour that do not arise from an intratubular germ cell neoplasia (other being teratoma in children)* Uncommon tumour 1 - 2% of all testicular germ cell neoplasms* Affected individuals over 65 yrs of age* S low growing tumour that rarely produces metastases* Excellent prognosis* Grossly spermatocytic seminoma tends to be larger than classic seminoma and presents with a pale grey soft cut surface, sometimes with mucoid cysts* Microscopy - 3 cell population all intermixedPathologic classification of common testicular tumoursGerm cell tumours (~ 95%)Nonseminomas* Spermatocytic seminoma* Embryonal carcinoma* Yolk sac (endodermal sinus) tumour* Choriocarcinoma* TeratomaSeminomaOthers (5%)Sex cord / gonadal stromal tumorsTumors containing both germ cell & sexcord/ gonadal stromal elementsLymphoid & Haematopoeitic tumorsMiscellaneousLeydig cell tumorsGonadoblastomaLymphomaCarcinoidSertoli cell tumour LeukemiaAdenomaGranulosa cell tumour PlasmacytomaCarcinomaThecoma / fibroma Most of the germ cell neoplasm arise from intratubular germ cell neoplasia; exceptions are spermatocytic seminoma, dermoid cyst, epidermoid cyst, paediatric tumours like yolk sac tumour and teratoma (pgi june 2007)
Three types are there
Seen in 65 years of age group
Slow growing tumour
Clinically and histologically not related to seminoma
Testis & Scrotum