Anorectum – Squamous cell carcinoma with moderate to strong KRT13 positivity of suprabasal cells.
Anorectum - Squamous cell carcinoma with moderate to strong KRT13 positivity of suprabasal cells. 
Colon – KRT13 negative colorectal adenocarcinoma.
Colon - KRT13 negative colorectal adenocarcinoma. 
Esophgus – Squamous cell carcinoma with strong diffuse KRT13 positivity.
Esophgus - Squamous cell carcinoma with strong diffuse KRT13 positivity. 
Kidney – KRT13 negative clear cell renal cell carcinoma.
Kidney - KRT13 negative clear cell renal cell carcinoma. 
Larynx – Squamous cell carcinoma with intense KRT13 positivity of suprabasal cells.
Larynx - Squamous cell carcinoma with intense KRT13 positivity of suprabasal cells. 
Lung – KRT13 negative adenocarcinoma.
Lung - KRT13 negative adenocarcinoma. 
Lung – Squamous cell carcinoma with intense KRT13 positivity of all cells. KRT13 staining intensity increases from the basal cell layers to the center of invasive tumor cell nests.
Lung - Squamous cell carcinoma with intense KRT13 positivity of all cells. KRT13 staining intensity increases from the basal cell layers to the center of invasive tumor cell nests. 
Ovary – Brenner tumor with strong KRT13 positivity of urothelial cells.
Ovary - Brenner tumor with strong KRT13 positivity of urothelial cells. 
Penis – Squamous cell carcinoma exhibiting a strong diffuse KRT13 positivity of all tumor cells.
Penis - Squamous cell carcinoma exhibiting a strong diffuse KRT13 positivity of all tumor cells. 
Pleura – KRT13 negative malignant mesothelioma.
Pleura - KRT13 negative malignant mesothelioma. 
Prostate – KRT13 negative prostatic adenocarcinoma (Gleason 3+3=6).
Prostate - KRT13 negative prostatic adenocarcinoma (Gleason 3+3=6). 
Salivary gland – Warthin tumor showing intense KRT13 positivity of a small fraction of (suprabasal) cells.
Salivary gland - Warthin tumor showing intense KRT13 positivity of a small fraction of (suprabasal) cells. 
Skin – KRT13 negative basal cell carcinoma.
Skin - KRT13 negative basal cell carcinoma. 
Skin – Squamous cell carcinoma with scattered KRT13 positive cells showing variable levels of expression (mosaic pattern).
Skin - Squamous cell carcinoma with scattered KRT13 positive cells showing variable levels of expression (mosaic pattern). 
Thyroid – KRT13 negative papillary carcinoma.
Thyroid - KRT13 negative papillary carcinoma. 
Urinary bladder – Non-invasive papillary urothelial carcinoma (pTa) showing strong diffuse KRT13 positivity.
Urinary bladder - Non-invasive papillary urothelial carcinoma (pTa) showing strong diffuse KRT13 positivity. 
Urinary bladder – Strong KRT13 immunostaining in a muscle-invasive urothelial carcinoma.
Urinary bladder - Strong KRT13 immunostaining in a muscle-invasive urothelial carcinoma. 
Uterine cervix – Squamous cell carcinoma showing strong KRT13 expression of suprabasal cells.
Uterine cervix - Squamous cell carcinoma showing strong KRT13 expression of suprabasal cells. 
Vulva – Squamous cell carcinoma with intense KRT13 immunostaining of all cells.
Vulva - Squamous cell carcinoma with intense KRT13 immunostaining of all cells.