The Juan Rosai Collection

unknown (unknown) [1325/1]

unknown (unknown) [1325/2]

unknown (unknown) [1325/3]

unknown (unknown) [1325/4]

unknown (unknown) [1325/5]

unknown (unknown) [1325/6]

unknown (unknown) [1325/7]

unknown (unknown) [1325/8]

unknown (unknown) [1325/9]

unknown (unknown) [1325/10]

Leiomyosarcoma (Stomach) [281/2]

Malignant lymphoma (Small bowel ) [281/3]

Scleroderma (Large bowel) [281/4]

Disseminated intravascularcoagulation (DIC) (Large bowel) [281/5]

Ischemic colitis (Large bowel) [281/6]

Focal nodular hyperplasia (Liver) [281/7]

Crhon's disease (Large bowel) [281/9]

Ulcerative colitis (Large bowel) [281/10]

Heterotopic pancreas (Small bowel) [555/1]

Lymphangioma (Large bowel) [555/2]

Leiomyosarcoma (Peritoneum) [555/3]

Squamous cell carcinoma, spindle cell (sarcomatoid) (Anus) [555/4]

Leiomyosarcoma (Esophagus) [555/5]

Papillary adenocarcinoma (Esophagus) [555/6]

Carcinoid-islet cell carcinoma (Duodenum) [555/7]

Adenocarcinoma (Large bowel) [555/8]

Malignant lymphoma (Ileum) [555/9]

Carcinoma (Stomach) [555/10]

Carcinoma (Small bowel) [555/11]

Adenocarcinoma (Large bowel) [555/12]

Endometriosis (Peritoneum) [541/3]

Fibromatosis (Peritoneum) [541/4]

Leiomyoma (Corpus) [541/5]

Liposarcoma (Peritoneum) [541/6]

Sclerosing lipogranulomatosis (Peritoneum) [541/8]

Leiomyoblastoma (Peritoneum) [541/9]

Leiomyoblastoma (Peritoneum) [541/10]

Epidermoid (squamous cell) carcinoma (Esophagus) [92/1]

Malignant lymphoma (Stomach) [92/3]

Carcinoma (Stomach) [92/4]

Carcinoma (Stomach) [92/5]

polyp (Stomach) [92/6]

Adenocarcinoma (Gallbladder) [92/7]

Carcinoid (Small bowel) [92/8]

Malignant lymphoma (Small bowel ) [92/9]

Adenocarcinoma, primary (Appendix) [92/10]

Adenoacanthoma (Large bowel) [92/11]

Familial polyposis (Large bowel) [92/12]

Adenocarcinoma (Large bowel) [92/13]

Villous adenoma (Large bowel) [92/14]

Hepatocholangioma (Liver) [92/15]

Hepatocellular carcinoma (liver cell carcinoma; hepatoma) (Liver) [92/16]

Angiosarcoma (Liver) [92/18]

Adenocarcinoma (Gallbladder) [92/19]

Adenoacanthoma (Pancreas) [92/20]

Leiomyosarcoma (Pancreas) [92/21]

Cystadenoma (Pancreas) [92/22]

Rosai-Dorfman disease (Small bowel) [1143/1]

Small cell neuroendocrine carcinoma (Large bowel (rectum)) [1143/2]

Inflammatory fibroid polyp (Small bowel) [1143/3]

Benign multicystic mesothelioma (in a male) (Peritoneum) [1143/4]

Mucinous tumor of uncertain malignant potential It looks like mucosal hyperplasia (Appendix) [1143/5]

Infantile hemangioendothelioma (type 1) (Liver) [1143/6]

Cavernous hemangioma (Liver) [1143/7]

Fibrolamellar hepatocellular carcinoma (Liver) [1143/8]

Clear cell variant of hepatocellular carcinoma (Liver) [1143/9]

Mucinous cystadenoma (Pancreas) [1143/10]

unknown (unknown) [1360/1]

unknown (unknown) [1360/2]

unknown (unknown) [1360/3]

unknown (unknown) [1360/4]

unknown (unknown) [1360/5]

unknown (unknown) [1360/6]

unknown (unknown) [1360/7]

unknown (unknown) [1360/8]

unknown (unknown) [1360/9]

unknown (unknown) [1360/10]

unknown (unknown) [1360/11]

unknown (unknown) [1360/12]

unknown (unknown) [1434/1]

unknown (unknown) [1434/2]

unknown (unknown) [1434/3]

unknown (unknown) [1434/4]

unknown (unknown) [1434/5]

unknown (unknown) [1434/6]

unknown (unknown) [1434/7]

unknown (unknown) [1434/8]

unknown (unknown) [1434/9]

unknown (unknown) [1434/10]

unknown (unknown) [1434/11]

unknown (unknown) [1434/12]

unknown (unknown) [1400/1]

unknown (unknown) [1400/2]

unknown (unknown) [1400/3]

unknown (unknown) [1400/4]

unknown (unknown) [1400/5]

unknown (unknown) [1400/6]

unknown (unknown) [1400/7]

unknown (unknown) [1400/8]

unknown (unknown) [1400/9]

unknown (unknown) [1400/10]

unknown (unknown) [1400/11]

unknown (unknown) [1400/12]

unknown (unknown) [1377/1]

unknown (unknown) [1377/2]

unknown (unknown) [1377/3]

unknown (unknown) [1377/4]

unknown (unknown) [1377/5]

unknown (unknown) [1377/6]

unknown (unknown) [1377/7]

unknown (unknown) [1377/8]

unknown (unknown) [1377/9]

unknown (unknown) [1377/10]

unknown (unknown) [1377/11]

unknown (unknown) [1377/12]

Leiomyoblastoma (Stomach) [543/1]

paraganglioma (Omentum) [543/2]

Cementifying fibroma (Oral cavity) [543/3]

Verrucous carcinoma (Anus) [543/4]

Malignant lymphoma (Stomach) [543/5]

Hamartomatous polyp (Small bowel ) [543/6]

Cystadenoma (Pancreas) [543/7]

Carcinoma in situ (Gallbladder) [543/8]

Leiomyoblastoma (Stomach) [543/9]

Pneumatosis cystoides intestinalis (Large bowel) [543/10]

Sarcomatoid carcinoma (Carcinosarcoma) (Esophagus) [543/11]

Glomus tumor (Stomach) [543/12]

Malignant lymphoma (Stomach) [544/1]

Carcinoma (Stomach) [544/2]

Neurofibroma (Small bowel ) [544/10]

Rhabdomyosarcoma (Peritoneum) [544/11]

Brunner gland adenoma (Small bowel (duodenum)) [1173/1]

Inflammatory fibroid polyp (Stomach) [1173/2]

Fibromatosis (Peritoneum (mesentery)) [1173/3]

Leiomyosarcoma (Large bowel (colon)) [1173/4]

Called GIST I think it is a fibromatosis (Peritoneum (mesentery)) [1173/5]

Solid and pseudopapillary tumor of pancreas (Pancreas) [1173/6]

Ganglioneuroma It looks like a neurofibroma (Large bowel) [1173/7]

Neuroendocrine carcinoma (Stomach) [1173/8]

Hepatocellular carcinoma in cirrhosis (Liver) [1173/9]

Mucinous adenocarcinoma (Stomach) [1173/10]

Aberrant tissues (Stomach) [126/1]

Brunner's gland adenoma (Small bowel) [126/2]

Villous adenoma (Large bowel) [126/3]

Retention (juvenile) polyp and polyposis (Large bowel) [126/4]

Endometriosis (Large bowel) [126/6]

Pseudolymphoma (Stomach) [126/11]

Malignant lymphoma (Small bowel ) [126/12]

Pneumatosis cystoides intestinalis (Small bowel ) [126/13]

Ulcerative colitis (Large bowel) [126/14]

Carcinoid (Small bowel) [126/16]

Adenomatous polyp (Large bowel) [126/18]

Lymphoid polyp (Large bowel) [126/19]

Hemangiopericytoma (Stomach) [1440/1]

Submucosal granuloma with eosinophilic infiltration (Pylorus) [1440/2]

Leiomyosarcoma (Stomach) [1440/3]

Leiomyosarcoma (Stomach) [1440/4]

Leiomyosarcoma (Stomach mucosa) [1440/5]

Adenocarcinoma (Lymph node) [1440/6]

Adenocarcinoma (Cecum) [1440/7]

Adenocarcinoma (Rectum) [1440/8]

Leiomyosarcoma (Stomach) [1440/9]

Leiomyosarcoma (Small bowel ) [1440/10]

Hamartoma (Jejunum) [1440/11]

Adenoma (Stomach) [1440/12]

Adenoma (pancreatic islets) (Duodenum) [1440/13]

Adenocarcinoma (Colon) [1440/15]

Papillary adenocarcinoma (Papilla of vater) [1440/16]

Adenoachantoma (Small bowel) [1440/17]

Adenocarcinoma Gr 1 (Sigmoid colon) [1440/18]

Adenoma (Rectum ) [1440/19]

adenoma (Rectum) [1440/20]

Hodgkin's disease (Stomach) [1440/21]

Giant follicular lymphoblastoma (Jejunum) [1440/22]

Melanoma (Hemorroidal) [1440/23]

Plasmacytoma () [1440/24]

Multiple lesions of reticulum cell sarcoma (Bowel) [1440/25]

Whipple's disease (Small bowel ) [220/1]

Leishmaniasis (Liver) [220/2]

Herpes simplex infection (Liver) [220/3]

Hemorrhagic infart (Small bowel ) [220/4]

Adenomatous polyp (Large bowel) [220/5]

Villous adenoma (Large bowel) [220/6]

Adenocarcinoma (Small bowel) [220/7]

Plasma cell granuloma (Large bowel) [220/9]

Malignant lymphoma (Stomach) [220/10]

Amyloidosis (Small bowel) [220/11]

Ischemic colitis (Large bowel) [220/12]

Polyp (Stomach) [220/14]

Basaloid squamous cell (cloacogenic) carcinoma (Large bowel/ Anus) [1166/1]

Classical (insular) carcinoid tumor (Small bowel) [1166/2]

Diffuse large cell lymphoma (Small bowel) [1166/3]

Inflammatory pseudotumor/ Xanthogranulomatous cholecystitis (Gallbladder) [1166/4]

Fibromatosis (desmoid tumor) (Peritoneum) [1166/5]

Microcystic (serous) pancreatic cystadenoma (plus insular pabcreas) (Pancreas) [1166/6]

Pooly differentiated mucinous adenocarcinoma with signet ring features (Large bowel (sigmoid colon)) [1166/7]

Clear cell sarcoma/ Melanoma of soft parts (Small bowel) [1166/8]

Called Gangliocytic paraganglioma My Diff Dx: Paraganglioma, epithelioid angiomyolipoma, GIST) (Peritoneum (ligament of Treitz)) [1166/9]

Called GIST It is a trypical case of fibromatosis (Peritoneum (mesentery)) [1166/10]

Polypoid ganglioneuroma (Large bowel) [1189/1]

Adenocarcinoma (Small bowel (jejunum)) [1189/2]

Hepatoblastoma (Liver) [1189/3]

Liver cell adenoma (in pregancy) (Liver) [1189/4]

Metastatic hepatocellular carcinoma (Ovary [liver]) [1189/5]

Serous (microcystic) cystadenoma (Pancreas) [1189/6]

Pancreatic endocrine tumor (in patient with von Hippel-Lindau disease) (Pancreas) [1189/7]

Signet ring adenocarcinoma (Stomach) [1189/8]

Goblet cell carcinoid tumor (adenocarcinoid) (Appendix) [1189/9]

GIST (with marked cytoplasmic vacuolization) (Stomach) [1189/10]

Villous adenoma (Large bowel) [581/1]

Villous adenoma (Large bowel) [581/2]

Colitis cystica profunda (Large bowel) [581/3]

Ulcerative colitis (Large bowel) [581/4]

Adenocarcinoma (Small bowel) [581/5]

Gastritis (Stomach) [581/6]

Epidermoid (squamous cell) carcinoma (Esophagus) [581/7]

Adenocarcinoma (Small bowel) [581/8]

Adenocarcinoma (Large bowel) [581/9]

Carcinoma (Stomach) [581/10]

Adenocarcinoma, spindle cell (Esophagus) [581/11]

Leiomyoma (Stomach) [581/12]

Leiomyosarcoma (Stomach) [581/13]

Rhabdomyosarcoma (Soft tissues) [581/14]

Squamous cell carcinoma with dysplasia and Bowen, asociated with condyloma (Anus) [581/15]

Adenocarcinoma (Large bowel) [581/16]

Malignant lymphoma (Stomach) [581/18]

Malignant lymphoma (Stomach) [581/19]

Metastatic tumor (Stomach) [581/20]

Inflammatory fibroid polyp (Small bowel ) [581/21]

Cyst (Peritoneum) [581/22]

Pneumatosis cystoides intestinalis (Large bowel) [581/23]

Villous tumor of the sigmoid () [1465/1]

Hypertrophic gastritis () [1465/2]

Adenocarcinoma (Stomach) [1465/3]

Benign non-chromaffin paraganglioma () [1465/5]

Leiomyosarcoma of small intestine () [1465/6]

Hemangioma of the rectum () [1465/7]

Granular cell myoblastoma of the esophagus () [1465/8]

Diffuse nodular hyperplasia of Brunner's glands () [1465/9]

Degenerating leiomyoma? Leiomyoblastoma? () [1465/10]

Inflammatory fibroid polyp () [1465/11]

Malignant lymphoma of the intestines () [1465/12]

Squamous cell carcinoma (Stomach) [1465/13]

lymphoid pseudotumor and malignant lymphoma (stomach) [1465/14]

lymphoid pseudotumor and malignant lymphoma (stomach) [1465/15]

malignant melanoma in the small bowel () [1465/16]

Malignant lymphoma of the intestines () [1465/17]

Adenocarcinoma of the large bowel and a fibrous tumor of the mesentery () [1465/18]

Diverticulum and pools of mucin () [1465/19]

Transitional cloacogenic carcinoma (basaloid) of the anus () [1465/20]

Malignant lymphoma of the intestines () [1465/21]

Malignant lymphoma of the intestines () [1465/22]

Malakoplakia () [1465/23]

Carcinosarcoma of the esophagus () [1465/24]

Carcinoid of the rectum (Schistosomiasis in one set of slides) () [1465/25]

Malignant GIST (stomach, peritoneum) [1122/1]

GIST (stomach) [1122/2]

GIST (vs schwannoma) (Stomach) [1122/3]

GIST/ Epithelioid leiomyosarcoma (Stomach) [1122/4]

Signet ring carcinoma, primary vs. metastatic (large bowel) [1122/5]

Sqaumous cell/ cloacogenic carcinoma (Anus, large bowel) [1122/6]

Diffuse large cell lymphoma (Large bowel) [1122/7]

Composite carcinoid tumor- neuroendocrine carcinoma and adenocarcinoma (Esophagus) [1122/8]

Submucosal lipoma (Large bowel) [1122/9]

Adenocarcinoma (Stomach) [1122/10]

Fibrolipoma, esophagus (Esophagus) [1474/1]

Primary malignant melanoma (Esophagus) [1474/2]

Pseudopolyposis, stomach, acquired, cystic (Stomach) [1474/3]

Hyperplasia, lymphoid tissue, stomach, intramucosal (pseudolymphoma) (Stomach) [1474/4]

Lymphosarcoma, stomach, histiocytic type (Stomach) [1474/5]

Carcinoma, stomach, diffuse, superficial spreading type (Stomach) [1474/6]

Carcinoid tumor, stomach (Stomach) [1474/7]

Bizarre atypical leiomyoblastoma, stomach (Stomach wall) [1474/8]

Glomangioma, stomach (Stomach) [1474/9]

Leiomyoblastoma, duodenum (with co-existing myastenia gravis) (Duodenum) [1474/10]

Hamartoma, small intestine, Peutz-Jeghers type (Small intestine) [1474/11]

Reticulum cell sarcoma, proximal jejunum (Small bowel) [1474/12]

Hyperplasia lymphoid tissue, nodular small intestine and hyperplasia, Lymph nodes, mesenteric (Small bowel) [1474/13]

Kaposi's disease, small intestine, focal (angiosarcoma, Kaposi type) (Small intestine) [1474/14]

Inflammatory fibroid polyp, ileum (Ileum) [1474/15]

Mesothelioma, peritoneum (Diffuse peritoneal tumor) [1474/16]

Carcinoid tumor of appendix, Goblet cell type (Appendix) [1474/17]

Adenoma, papillary (villous), appendix (Appendix) [1474/18]

Adenocarcinoma, appendix vermiformis, mucinous (Appendix) [1474/19]

Carcinoma, colon (transverse), squamous cell type (moderately differentiated) (Transverse colon) [1474/20]

Adenocarcinoma of rectosigmoid consistent with origin from endometriosis (Sigmoid colon) [1474/21]

Colitic cystica profunda, localized, secondary to ureterosigmoid anastomosis (Sigmoid colon) [1474/22]

Neurilemmoma, malignant (malignant Schwannoma), rectum, recurrent (anorectal margin) (Rectum) [1474/23]

Carcinoma of anus, basaloid (Anorectal wall) [1474/24]

oleoma, mesentery (Peritoneum) [1474/25]

unknown (unknown) [1411/1]

unknown (unknown) [1411/2]

unknown (unknown) [1411/3]

unknown (unknown) [1411/4]

unknown (unknown) [1411/5]

unknown (unknown) [1411/6]

unknown (unknown) [1411/7]

unknown (unknown) [1411/8]

unknown (unknown) [1411/9]

unknown (unknown) [1411/10]

unknown (unknown) [1411/11]

Malignant melanoma (Anus) [324/3]

Ischemic colitis (Large bowel) [324/4]

Carcinoma (Stomach) [324/5]

Islet cell tumor (Pancreas) [324/6]

Carcinoma (Pancreas) [324/7]

Carcinoid tumor (Stomach) [324/8]

Malignant Lymphoma, large cell (Lymphnodes) [324/9]

Malignant Lymphoma, large cell (Lymphnodes) [324/10]

Mikulicz's disease (Salivary glands) [212/1]

Leiomyosarcoma (Stomach) [212/2]

Leiomyoma (Stomach) [212/3]

Polyp (Stomach) [212/4]

Mucormycosis (Small bowel ) [212/5]

Malignant lymphoma (Small bowel ) [212/6]

Carcinoid tumor, mucinous type (Appendix) [212/8]

Adenocarcinoma (Large bowel) [212/9]

Squamous cell carcinoma, well differentiated (Anus) [212/11]

Cloacogenic (basaloid) carcinoma (Anus) [212/12]

Grade IV squamous cell carcinoma with basaloid features () [1458/1]

Polypoid carcinosarcoma (Esophagus) [1458/2]

Malignant lymphoma of the small cell or lymphoblastic type () [1458/3]

Liposarcoma () [1458/4]

Leiomyosarcoma (Stomach) [1458/5]

Schistosomiasis in carcinoma of the sigmoid () [1458/6]

Malignant lymphoma (Stomach) [1458/7]

Menetrier's disease or polyadenoma en nappe (Stomach) [1458/8]

Hodgkin's () [1458/9]

Malignant mixed mesenchymoma () [1458/10]

Multicentric non-functioning pancreatic islet cell type of gastric cancer ? ? () [1458/11]

Carcinoid tumor () [1458/12]

Benign hamartomatous complex () [1458/13]

Malignant melanoma of the anus () [1458/14]

Mucous adenocarcinoma of the colon () [1458/15]

Fibrous inflammatory polyp of the stomach () [1458/16]

Mucous carcinoma () [1458/17]

Invasive polypoid lesion of the colon () [1458/18]

Hodgkin's sarcoma complicating chronic ulcerative colitis () [1458/19]

Adenoachantoma of the colon () [1458/20]

Adenoachantoma of the stomach () [1458/21]

Grade IV scirrhous, mucous adenocarcinoma of the colon () [1458/22]

leiomyoma of the omentum () [1458/23]

Moderately anaplastic leiomyosarcoma () [1458/24]

Metastatic cancer in a lesser curvature lymph node () [1458/25]