Germ Cell Tumours: Difference between revisions

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== Staging ==
== Staging ==


* '''<span style="color:#ff0000">TNM</span>''' '''(AJCC 8th edition§)'''
=== <span style="color:#ff0000">TNM</span> (AJCC 8th edition§) ===
** '''<span style="color:#ff0000">T stage (primary tumor)</span>'''
 
*** '''pTX''': cannot be assessed
==== <span style="color:#ff0000">T stage (primary tumor)</span> ====
*** '''pT0''': no evidence of primary tumour
* '''pTX''': cannot be assessed
*** '''pTis''': germ cell neoplasia in situ
* '''pT0''': no evidence of primary tumour
*** '''<span style="color:#ff0000">pT1: tumour limited to testis (including rete testis invastion) without lymphyovascular invasion (LVI)</span>'''
* '''pTis''': germ cell neoplasia in situ
**** '''<span style="color:#ff0000">For pure seminoma:</span>'''
* '''<span style="color:#ff0000">pT1: tumour limited to testis (including rete testis invastion) without lymphyovascular invasion (LVI)</span>'''
***** '''<span style="color:#ff0000">pT1a: tumour size < 3 cm</span>'''
** '''<span style="color:#ff0000">For pure seminoma:</span>'''
***** '''<span style="color:#ff0000">pT1b: tumour size ≥ 3 cm</span>'''
*** '''<span style="color:#ff0000">pT1a: tumour size < 3 cm</span>'''
*** '''<span style="color:#ff0000">pT2: tumour limited to testis (including rete testis invastion) with LVI or tumour invading hilar soft tissue, epididymis or tunica vaginalis</span>'''
*** '''<span style="color:#ff0000">pT1b: tumour size ≥ 3 cm</span>'''
*** '''<span style="color:#ff0000">pT3: direct (continuous) spermatic cord soft tissue invasion</span>'''
* '''<span style="color:#ff0000">pT2: tumour limited to testis (including rete testis invastion) with LVI or tumour invading hilar soft tissue, epididymis or tunica vaginalis</span>'''
**** LVI of the spermatic cord without soft tissue invasion is not pT3
* '''<span style="color:#ff0000">pT3: direct (continuous) spermatic cord soft tissue invasion</span>'''
*** '''<span style="color:#ff0000">pT4: direct scrotum invasion</span>'''
** LVI of the spermatic cord without soft tissue invasion is not pT3
** '''<span style="color:#ff0000">N Stage (regional lymph node stage)</span>'''
* '''<span style="color:#ff0000">pT4: direct scrotum invasion</span>'''
*** '''<span style="color:#ff0000">Clinical</span>'''
 
**** cNX: regional lymph nodes cannot be assessed
==== <span style="color:#ff0000">N Stage (regional lymph node stage)</span> ====
**** cN0: no regional lymph node metastasis
* '''<span style="color:#ff0000">Clinical</span>'''
**** '''<span style="color:#ff0000">cN1: metastasis with a lymph node mass <u>≤2 cm</u> in greatest dimension OR multiple lymph nodes, each <u>≤2 cm</u> cm in greatest dimension</span>'''
** cNX: regional lymph nodes cannot be assessed
**** '''<span style="color:#ff0000">cN2: metastasis with a lymph node mass <u>>2 cm but ≤5</u> cm in greatest dimension OR multiple lymph nodes, any one mass >2 cm but ≤5 cm</span>'''
** cN0: no regional lymph node metastasis
**** '''<span style="color:#ff0000">cN3: metastasis with a lymph node mass <u>>5 cm</u> in greatest dimension'''</span>
** '''<span style="color:#ff0000">cN1: metastasis with a lymph node mass <u>≤2 cm</u> in greatest dimension OR multiple lymph nodes, each <u>≤2 cm</u> cm in greatest dimension</span>'''
*** '''Pathologic'''
** '''<span style="color:#ff0000">cN2: metastasis with a lymph node mass <u>>2 cm but ≤5</u> cm in greatest dimension OR multiple lymph nodes, any one mass >2 cm but ≤5 cm</span>'''
**** pNX''':''' regional lymph nodes cannot be assessed
** '''<span style="color:#ff0000">cN3: metastasis with a lymph node mass <u>>5 cm</u> in greatest dimension'''</span>
**** pN0: no regional lymph node metastasis
* '''Pathologic'''
**** '''pN1:''' metastasis with a lymph node mass '''≤2 cm''' in greatest dimension '''AND ≤5 positive nodes''', none >2 cm in greatest dimension
** pNX''':''' regional lymph nodes cannot be assessed
**** '''pN2:'''
** pN0: no regional lymph node metastasis
***** Metastasis with a lymph node mass '''>2 cm but ≤5 cm''' in greatest dimension '''OR'''
** '''pN1:''' metastasis with a lymph node mass '''≤2 cm''' in greatest dimension '''AND ≤5 positive nodes''', none >2 cm in greatest dimension
***** '''>5 nodes positive,''' none >5 cm in greatest dimension OR
** '''pN2:'''
***** '''Extranodal extension of tumour'''
*** Metastasis with a lymph node mass '''>2 cm but ≤5 cm''' in greatest dimension '''OR'''
**** pN3: metastasis with a lymph node mass '''>5 cm''' in greatest dimension
*** '''>5 nodes positive,''' none >5 cm in greatest dimension OR
** '''Distant metastasis'''
*** '''Extranodal extension of tumour'''
*** MX: distant metastasis cannot be assessed
** pN3: metastasis with a lymph node mass '''>5 cm''' in greatest dimension
*** M0: no distant metastasis
 
*** '''M1a: non-regional lymph node (ex: iliac, inguinal, pelvic NOS) or lung metastasis'''
==== M stage (distant metastasis) ====
*** '''M1b: non-lung visceral metastasis'''
* MX: distant metastasis cannot be assessed
** '''Serum markers (S)'''
* M0: no distant metastasis
*** '''SX''': serum tumor markers not available or not performed
* '''M1a: non-regional lymph node (ex: iliac, inguinal, pelvic NOS) or lung metastasis'''
*** '''S0''': markers within normal limits
* '''M1b: non-lung visceral metastasis'''
*** '''S1: LDH < 1.5 x upper limit of normal, hCG < 5,000 mIU/mL and AFP < 1,000 ng/mL'''
 
*** '''S2: LDH 1.5 - 10 x upper limit of normal OR hCG 5,000 - 50,000 mIU/mL OR AFP 1,000 - 10,000 ng/mL'''
==== S stage (serum markers) ====
*** '''S3: LDH > 10 x upper limit of normal OR hCG > 50,000 mIU/mL OR AFP > 10,000 ng/mL'''
* '''SX''': serum tumor markers not available or not performed
* '''<span style="color:#ff0000">Clinical staging'''
* '''S0''': markers within normal limits
** '''<span style="color:#ff0000">Prognosis of GCT and initial management decisions are determined by clinical stage (CS)'''
* '''S1: LDH < 1.5 x upper limit of normal, hCG < 5,000 mIU/mL and AFP < 1,000 ng/mL'''
** '''<span style="color:#ff0000">Based on (3):'''
* '''S2: LDH 1.5 - 10 x upper limit of normal OR hCG 5,000 - 50,000 mIU/mL OR AFP 1,000 - 10,000 ng/mL'''
**# '''<span style="color:#ff0000">Pathologic stage of the primary tumour (pT stage)'''
* '''S3: LDH > 10 x upper limit of normal OR hCG > 50,000 mIU/mL OR AFP > 10,000 ng/mL'''
**# '''<span style="color:#ff0000">Presence and extent of regional (N stage) and distant metastatic disease (M stage)'''
 
**# '''<span style="color:#ff0000">Post-orchiectomy serum tumor marker levels (S stage)'''
=== <span style="color:#ff0000">Clinical staging ===
**#* Serum tumor markers (AFP, hCG, and LDH) should be repeated at appropriate T1/2 time intervals after orchiectomy to determine nadir for staging and risk stratification
* '''<span style="color:#ff0000">Prognosis of GCT and initial management decisions are determined by clinical stage (CS)'''
**#** For patients with elevated AFP or hCG post-orchiectomy, clinicians should monitor serum tumor markers to establish nadir levels before treatment only if marker nadir levels would influence treatment.
* '''<span style="color:#ff0000">Based on (3):'''
** '''Testicular cancer clinical stage groups'''
*# '''<span style="color:#ff0000">Pathologic stage of the primary tumour (pT stage)'''
*# '''<span style="color:#ff0000">Presence and extent of regional (N stage) and distant metastatic disease (M stage)'''
*# '''<span style="color:#ff0000">Post-orchiectomy serum tumor marker levels (S stage)'''
*#* Serum tumor markers (AFP, hCG, and LDH) should be repeated at appropriate T1/2 time intervals after orchiectomy to determine nadir for staging and risk stratification
*#** For patients with elevated AFP or hCG post-orchiectomy, clinicians should monitor serum tumor markers to establish nadir levels before treatment only if marker nadir levels would influence treatment.
* '''Testicular cancer clinical stage groups'''


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