Testis – Embryonal carcinoma with moderate TYMS positivity of most tumor cells
Testis
Testis – TYMS negative seminoma. TYMS staining is only seen in some inflammatory cells
Female Tissues
Breast
Breast – Invasive breast cancer of no special type (NST) with weak TYMS staining of few tumor cells
Breast
Breast – TYMS negative invasive lobular breast cancer
Ovary
Ovary – Serous high-grade carcinoma with moderate to strong TYMS staining of a subset of tumor cells
Ovary
Ovary – Serous high-grade carcinoma with weak to moderate TYMS staining of a fraction of tumor cells
Muscle, connective & soft tissue
Penis
Penis – Squamous cell carcinoma with moderate to strong TYMS immunostaining of almost all tumor cells
Penis
Penis – Squamous cell carcinoma with strong TYMS staining of of most cells of the peripheral tumor cell layers. TYMS staining also occurs in some inflammatory cells
Skin
Skin
Skin – Malignant melanoma with strong TYMS positivity of more than half of the tumor cells
Skin
Skin – TYMS negative basal cell carcinoma
Bone Marrow & lymphoid tissues
Lymph node
Lymph node – Diffuse large B-cell lymphoma with moderate to strong TYMS staining of a subset of tumor cells
Lymph node
Lymph node – Diffuse large B-cell lymphoma with variable, weak to strong TYMS staining of almost all tumor cells
Lymph node
Lymph node – Hodgkin’s lymphoma with variable, weak to strong TYMS staining of a subset of tumor cells. A fraction of non-neoplastic cells are also TYMS positive
Lymph node
Lymph node – Hodgkin’s lymphoma with weak to moderate TYMS immunostaining of tumor cells. TYMS staining is also seen in many inflammatory cells
Lymph node
Lymph node – TYMS negative B-CLL. TYMS positivity appears to be limited to a small subset of non-neoplastic lymphocytic cells
Lymph node
Lymph node – TYMS negative tumor cells in a Hodgkin’s lymphoma. TYMS positivity is only seen in a small subset of non-neoplastic cells