John Cangelosi, MD
Founder & Board-certified Dermatopathologist
Dr. John Cangelosi is actively involved as Chairman and Chief Executive Officer of Sagis, PLLC, a company he co-founded in 2012. Sagis is an entirely physician-owned multispecialty diagnostic pathology laboratory headquartered in Houston, Texas and is one of the largest dermatopathology laboratories in the United States.
Dr. Cangelosi has performed research in such topics as cutaneous adnexal tumors, histiocytic tumors, cutaneous t-cell lymphomas, and non-melanoma skin cancers, and has published in various pathology journals including The American Journal of Dermatopathology, Journal of Cutaneous Pathology, and Archives of Pathology and Laboratory Medicine. He has written a book chapter about cutaneous tumors in Dermatology, A Pictorial Review (McGraw-Hill Medical Publishing).
Dr. Cangelosi is a member of Alpha Omega Alpha (AOA) Medical Honor Society and currently holds Assistant Clinical Professor positions at both the University of Texas Medical Branch (UTMB) in Galveston and University of North Texas/TCOM in Fort Worth and regularly teaches dermatopathology to both pathology and dermatology residents at numerous residency programs in the United States.
Dr. Cangelosi is a past President of the Houston Society of Clinical Pathologists, a member of the Harris County Medical Society’s Health Information Technology (HIT) committee, and an Ambassador to Texas Children’s Hospital. He is a member of several boards including A Children’s House for The Soul (a Houston based non-profit organization offering support for children with disfiguring skin conditions), The Health Museum (a Smithsonian Institute Museum) and the Houston Livestock Show and Rodeo which has committed over $500 million dollars to youth scholarships across Texas.
Dr. Cangelosi currently serves on the executive committee of the Houston Chapter of Young Presidents’ Organization (YPO), was recognized as the 2020 McGovern Medical School’s Distinguished Alumni of the Year, and was recently honored by the Houston Business Journal as one of Houston’s most admired CEOs for 2022.
Fellowship Training
The University of Texas Medical Branch
Galveston, TX
The University of Texas MD Anderson Cancer Center
Houston, TX
Medical School
University of Texas Health Science Center
Houston, TX
Residency Training
The University of Texas Medical Branch
Galveston, TX
Undergraduate
Texas A&M University
College Station, TX
Dermatopathology
The American Board of Dermatology and The American Board of Pathology
Anatomic & Clinical Pathology
The American Board of Pathology
Dr. Cangelosi has performed research in such topics as cutaneous adnexal tumors, histiocytic tumors, cutaneous t-cell lymphomas, and non-melanoma skin cancers, and has published in various pathology journals including The American Journal of Dermatopathology, Journal of Cutaneous Pathology, and Archives of Pathology and Laboratory Medicine. Dr. Cangelosi has also written a book chapter about cutaneous tumors in Dermatology, A Pictorial Review (McGraw-Hill Medical Publishing).
Book Chapters
John J. Cangelosi, MD, Doina Ivan, MD, and Alexander Lazar, MD, PhD, Dermatology, A Pictorial Review, Chapter 33 in Cutaneous Tumors, Asra Ali, MD (Editor), McGraw-Hill Medical Publishing
Publications
Cangelosi JJ, Prieto VG, and Ivan D. Cutaneous Rosai-Dorfman Disease with Increased Number of Eosinophils. Arch Pathol Lab Med. 2011 Dec;135:1597-600.
Cangelosi JJ, Nash JW, Prieto VG, and Ivan D. Cutaneous Adnexal Tumor with an Unusual Presentation – Discussion of a Potential Diagnostic Pitfall. Am J Dermatopathol. 2009 May; 31:278-81.
Cangelosi JJ, Bilal S, Sarria JC, Herwaldt BL, Indrikovs AJ. Transmission of Babesiosis by Blood Transfusion in Texas. Vox Sang. 2008 Nov; 95:331-4.
Cangelosi JJ, Prieto VG, Baker GF, Moore BA, and Diwan AH. Unusual Presentation of Multiple Epithelioid Cell Histiocytomas. Am J Dermatopathol. 2008 Aug; 30:373-6.
Abstracts
Dual S100-AE1/3 Immunohistochemistry to Detect Perineural Invasion in Non-Melanoma Skin Cancers
Cangelosi JJ, Berlingeri-ramos, A, Wagner, RF, and Kelly, BC. J Cutan Pathol. 2011 Jan; 38:171-2.
Idiopathic Calcinosis Cutis of the Penis
Cangelosi JJ, Matherne RJ, and Sanchez, RL. J Cutan Pathol. 2011 Jan; 38:174-5.
Disseminated Verruca Vulgaris and Multicentric Squamous Cell Carcinoma in Association with Human Papillomavirus and Mycosis Fungoides
Cangelosi JJ, Diwan AH, Prieto VG, Ivan D. J Cutan Pathol. 2008 Jan; 35:111.
Pilomatricoma: A Clinicopathologic Review of 187 Consecutive Cases
Cangelosi JJ, Kelly BC, and Sanchez RL. J Cutan Pathol. 2008 Jan; 35:144.
Diffuse Astrocytoma Ki-67 Antigen Labeling Index: Automated Quantitation Correlates Well with Manual Quantitation.
Cangelosi JJ, Corley LJ, and Fuller GN. Arch Pathol Lab Med. 2006 Sep;130:1398-1399.
Hepatocellular Carcinoma (HCC), Hepatitis C, and Cirrhosis: A Retrospective Study of Metastatic Patterns in 100 Autopsies.
Cangelosi JJ, Schnadig VJ, and Cowan DF. Arch Pathol Lab Med. 2006 Sep;130:2.
Fellowship Training
The University of Texas Medical Branch
Galveston, TX
The University of Texas MD Anderson Cancer Center
Houston, TX
Medical School
University of Texas Health Science Center
Houston, TX
Residency Training
The University of Texas Medical Branch
Galveston, TX
Undergraduate
Texas A&M University
College Station, TX
Dermatopathology
The American Board of Dermatology and The American Board of Pathology
Anatomic & Clinical Pathology
The American Board of Pathology
American Academy of Dermatology
College of American Pathologists
American Medical Association
Texas Medical Association
Texas Society of Pathologists
Harris County Medical Society
Dr. Cangelosi has performed research on cutaneous adnexal tumors, histiocytic tumors, cutaneous t-cell lymphomas, and non-melanoma skin cancers. Over the years, he’s published in various pathology journals, including The American Journal of Dermatopathology, Journal of Cutaneous Pathology, and Archives of Pathology and Laboratory Medicine. Dr. Cangelosi has also written a book chapter about cutaneous tumors in Dermatology, A Pictorial Review (McGraw-Hill Medical Publishing).
Book Chapters
John J. Cangelosi, MD, Doina Ivan, MD, and Alexander Lazar, MD, PhD, Dermatology, A Pictorial Review, Chapter 33 in Cutaneous Tumors, Asra Ali, MD (Editor), McGraw-Hill Medical Publishing
Publications
Cangelosi JJ, Prieto VG, and Ivan D. Cutaneous Rosai-Dorfman Disease with Increased Number of Eosinophils. Arch Pathol Lab Med. 2011 Dec;135:1597-600.
Cangelosi JJ, Nash JW, Prieto VG, and Ivan D. Cutaneous Adnexal Tumor with an Unusual Presentation – Discussion of a Potential Diagnostic Pitfall. Am J Dermatopathol. 2009 May; 31:278-81.
Cangelosi JJ, Bilal S, Sarria JC, Herwaldt BL, Indrikovs AJ. Transmission of Babesiosis by Blood Transfusion in Texas. Vox Sang. 2008 Nov; 95:331-4.
Cangelosi JJ, Prieto VG, Baker GF, Moore BA, and Diwan AH. Unusual Presentation of Multiple Epithelioid Cell Histiocytomas. Am J Dermatopathol. 2008 Aug; 30:373-6.
Abstracts
Dual S100-AE1/3 Immunohistochemistry to Detect Perineural Invasion in Non-Melanoma Skin Cancers
Cangelosi JJ, Berlingeri-ramos, A, Wagner, RF, and Kelly, BC. J Cutan Pathol. 2011 Jan; 38:171-2.
Idiopathic Calcinosis Cutis of the Penis
Cangelosi JJ, Matherne RJ, and Sanchez, RL. J Cutan Pathol. 2011 Jan; 38:174-5.
Disseminated Verruca Vulgaris and Multicentric Squamous Cell Carcinoma in Association with Human Papillomavirus and Mycosis Fungoides
Cangelosi JJ, Diwan AH, Prieto VG, Ivan D. J Cutan Pathol. 2008 Jan; 35:111.
Pilomatricoma: A Clinicopathologic Review of 187 Consecutive Cases
Cangelosi JJ, Kelly BC, and Sanchez RL. J Cutan Pathol. 2008 Jan; 35:144.
Diffuse Astrocytoma Ki-67 Antigen Labeling Index: Automated Quantitation Correlates Well with Manual Quantitation.
Cangelosi JJ, Corley LJ, and Fuller GN. Arch Pathol Lab Med. 2006 Sep;130:1398-1399.
Hepatocellular Carcinoma (HCC), Hepatitis C, and Cirrhosis: A Retrospective Study of Metastatic Patterns in 100 Autopsies.
Cangelosi JJ, Schnadig VJ, and Cowan DF. Arch Pathol Lab Med. 2006 Sep;130:2.
