* Response Options to "Histologic type"

___ Thymoma, specify

       ___ Type A thymoma

       ___ Type AB thymoma

       ___ Type B1 thymoma

       ___ Type B2 thymoma

       ___ Type B3 thymoma

       ___ Other (specify): ___________

___ Thymic Carcinoma, specify

       ___ Squamous cell carcinoma

       ___ Basaloid carcinoma

       ___ Mucoepidermoid carcinoma

       ___ Lymphoepithelioma-like carcinoma

       ___ Sarcomatoid carcinoma

       ___ Clear cell carcinoma

       ___ Adenocarcinoma

       ___ Well-differentiated neuroendocrine carcinoma, typical carcinoid

       ___ Well-differentiated neuroendocrine carcinoma, atypical carcinoid

       ___ Poorly differentiated neuroendocrine carcinoma, large cell

neuroendocrine carcinoma 

       ___ Poorly differentiated neuroendocrine carcinoma, small cell carcinoma,

               neuroendocrine type

       ___ Other (specify): _______________

** Response Options to "Tumor Extension" (list all that apply)

___ Not applicable

___ Not identified

___ Cannot be assessed

___ Pulmonary parenchyma

+ Specify lobe(s) of lung: ___________________

___ Pleura

+ Specify location: ___________________

___ Pericardium

___ Diaphragm

___ Other (specify): ___________________

*** Response Options to "Treatment Effect"

___ Not applicable

___ Cannot be determined

___ None detected

___ Present (specify: __% residual viable tumor)

Pathologic Staging for Thymomas (Modified Masaoka Stage)

(applies only to thymomas)

___ Stage I:          Grossly and microscopically encapsulated (includes microscopic

invasion into, but not through, the capsule)

___ Stage IIa:        Microscopic transcapsular invasion

___ Stage IIb:        Macroscopic capsular invasion

___ Stage III:        Macroscopic invasion of neighboring organs

___ Stage IVa:        Pleural or pericardial dissemination

___ Stage IVb:        Hematogenous or lymphatic dissemination

___ Cannot be determined

Thorax

Staging

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