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Heather Froehlich, MD

Board-Certified Dermatopathologist

Dr. Heather Froehlich is a Board-Certified Dermatopathologist, also certified in anatomic and clinical pathology by the American Board of Pathology. She earned her medical degree from the University of Texas Health Science Center at San Antonio after completing a Bachelor of Arts in Chemistry at Southwestern University in Georgetown, Texas. Dr. Froehlich completed her residency in Anatomic and Clinical Pathology in New Hampshire at Dartmouth-Hitchcock Medical Center, where she remained for fellowship training in Dermatopathology. 

Dr. Froehlich specializes in the diagnosis and classification of skin cancers, including basal cell carcinoma, squamous cell carcinoma, and melanoma, along with complex inflammatory and infectious skin conditions. She has a special interest in clinicopathologic correlation, working closely with referring clinicians to support early detection, informed surgical planning, and better patient outcomes. An experienced educator, Dr. Froehlich has served as an Instructor of Pathology at Dartmouth-Hitchcock Medical Center, contributing to resident education and tumor board conferences. She has authored a book chapter and numerous peer-reviewed publications and abstracts presented at national meetings. 

Prior to joining Sagis, Dr. Froehlich served as Laboratory Medical Director and dermatopathologist for Preferred Dermatology in McKinney, Texas, overseeing dermatopathology services and diagnostic quality. She is a member of the American Society of Dermatopathology, American Academy of Dermatology, and Texas Medical Association. 

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Education

Fellowship Training

Dermatopathology
Dartmouth-Hitchcock Medical Center
Lebanon, NH

Residency Training

Anatomic and Clinical Pathology
Dartmouth-Hitchcock Medical Center
Lebanon, NH

Medical School

University of Texas Health Science Center at San Antonio
San Antonio, TX

Undergraduate

Southwestern University
Georgetown, TX

Board Certifications

Dermatopathology

American Board of Pathology

Anatomic & Clinical Pathology

American Board of Pathology

Memberships

Research & Publications

Book Chapter 

  • Froehlich H, Plaza J. “Immunohistology and Molecular Studies of Epithelial Tumors”. In: Plaza J, Prieto V, eds. Applied Immunohistochemistry in the Evaluation of Skin Neoplasms. Springer Publication. 2016:3-24. 

Publications 

  • McGowan M, Eisenberg B, Lewis L, Froehlich H, Wells W, Eastman A, Kuemmerle N, Rosenkrantz K, Barth R, Schwartz G, Tosteson T, Kinlaw W. “A Proof of Principle Trial to Determine Whether Conjugated Linoleic Acid Modulates the Lipogenic Pathway in Human Breast Cancer Tissue”. Breast Cancer Res Treat. 2013;138(1):175-183. 
  • Kuemmerle NB, Rysman E, Lombardo PS, Flanagan AJ, Lipe BC, Wells WA, Pettus JR, Froehlich HM, Memoli VA, Morganelli PM, Swinnen JV, Timmerman LA, Chaychi L, Fricano CJ, Eisenberg BL, Coleman WB, Kinlaw WB. “Lipoprotein lipase links dietary fat to solid tumor cell proliferation”. Mol Cancer Ther. 2011;10(3):427-436. 
  • Pakalniskis M, Wells W, Schwab M, Froehlich H, Jiang S, Li Z, Tosteson T, Poplack S, Kaufman P, Paulsen K, Pogue B. “Tumor angiogenesis change estimated by using diffuse optical spectroscopic tomography: demonstrated correlation in women undergoing neoadjuvant chemotherapy for invasive breast cancer?” Radiology. 2011;259(2):365-374. 

Abstracts 

  • Froehlich HM, Ng DP, Memoli VA, Seidel GD. “Tumoral melanosis involving a sentinel lymph node with extracapsular extension: a case report with immunologic characterization”. 49th American Society of Dermatopathology Annual Meeting. 2012 October. Chicago, IL. 
  • Froehlich HM, Polito FA, Bridgeo CB, Lee HK. “Total and direct bilirubin measurements using eight different chemistry analyzers”. American Association for Clinical Chemistry National Meeting. 2012 July. Los Angeles, CA. 
  • Froehlich H, Schwab MC, Tsongalis GJ, Brennick JB. “Rapid identification of EGFR pathway somatic mutations in melanoma of varying subtypes”. Association for Molecular Pathology Annual Meeting. 2011. Grapevine, TX. 
  • Danilova OV, Froehlich HM, Hammour T, Kuemmerle NB, Levy NB, Kinlaw WB, Kaur P. “Prognostic value of fatty acid synthase and Spot 14 in diffuse large B-cell lymphoma”. United States and Canadian Academy of Pathologists (USCAP) Annual Meeting. 2011 February. San Antonio, TX. 
  • Ward BP, Froehlich HM, Lebel KA, Bissaillon CL, Lefferts JA, Tsongalis GJ. “Comparison of three DNA extraction methods from formalin fixed paraffin embedded tissues”. Association for Molecular Pathology Annual Meeting. 2010 November. San Jose, CA. 
  • Froehlich HM, Wartman D, Yan S, Storm C. “A case of equestrian pernio (chilblains) masquerading as cutaneous lupus erythematosus”. 47th American Society of Dermatopathology Annual Meeting. 2010 October. Atlanta, GA. 
  • Froehlich HM, Brennick J, Xie H, Israel M, Yan S. “Id2 expression in cutaneous nevi and melanomas”. 99th United States and Canadian Academy of Pathologists (USCAP) Annual Meeting. 2010 March. Washington, DC. 
  • Froehlich HM, Niemeyer E. “Determination of phthalate ester concentration in PET bottles exposed to UV radiation”. 227th American Chemical Society National Meeting. 2004 March. Anaheim, CA. 

Teaching Experience 

  • Assistant Laboratory Instructor, General Pathology – Geisel School of Medicine at Dartmouth 
  • Dermatopathology Didactic Conference (weekly), Melanoma Tumor Board (bimonthly), Cutaneous Lymphoma Tumor Board (monthly), and Dermatopathology Journal Club (monthly) – Dartmouth-Hitchcock Medical Center 
  • Annual Dermatology Resident Board Review Course 
  • Dermatopathology education for visiting Dermatology residents 
  • Annual lecture series: Cutaneous Drug Eruptions Journal Review 
Fellowship Training

Dermatopathology
Dartmouth-Hitchcock Medical Center
Lebanon, NH

Residency Training

Anatomic and Clinical Pathology
Dartmouth-Hitchcock Medical Center
Lebanon, NH

Medical School

University of Texas Health Science Center at San Antonio
San Antonio, TX

Undergraduate

Southwestern University
Georgetown, TX

Dermatopathology

American Board of Pathology

Anatomic & Clinical Pathology

American Board of Pathology

Book Chapter 

  • Froehlich H, Plaza J. “Immunohistology and Molecular Studies of Epithelial Tumors”. In: Plaza J, Prieto V, eds. Applied Immunohistochemistry in the Evaluation of Skin Neoplasms. Springer Publication. 2016:3-24. 

Publications 

  • McGowan M, Eisenberg B, Lewis L, Froehlich H, Wells W, Eastman A, Kuemmerle N, Rosenkrantz K, Barth R, Schwartz G, Tosteson T, Kinlaw W. “A Proof of Principle Trial to Determine Whether Conjugated Linoleic Acid Modulates the Lipogenic Pathway in Human Breast Cancer Tissue”. Breast Cancer Res Treat. 2013;138(1):175-183. 
  • Kuemmerle NB, Rysman E, Lombardo PS, Flanagan AJ, Lipe BC, Wells WA, Pettus JR, Froehlich HM, Memoli VA, Morganelli PM, Swinnen JV, Timmerman LA, Chaychi L, Fricano CJ, Eisenberg BL, Coleman WB, Kinlaw WB. “Lipoprotein lipase links dietary fat to solid tumor cell proliferation”. Mol Cancer Ther. 2011;10(3):427-436. 
  • Pakalniskis M, Wells W, Schwab M, Froehlich H, Jiang S, Li Z, Tosteson T, Poplack S, Kaufman P, Paulsen K, Pogue B. “Tumor angiogenesis change estimated by using diffuse optical spectroscopic tomography: demonstrated correlation in women undergoing neoadjuvant chemotherapy for invasive breast cancer?” Radiology. 2011;259(2):365-374. 

Abstracts 

  • Froehlich HM, Ng DP, Memoli VA, Seidel GD. “Tumoral melanosis involving a sentinel lymph node with extracapsular extension: a case report with immunologic characterization”. 49th American Society of Dermatopathology Annual Meeting. 2012 October. Chicago, IL. 
  • Froehlich HM, Polito FA, Bridgeo CB, Lee HK. “Total and direct bilirubin measurements using eight different chemistry analyzers”. American Association for Clinical Chemistry National Meeting. 2012 July. Los Angeles, CA. 
  • Froehlich H, Schwab MC, Tsongalis GJ, Brennick JB. “Rapid identification of EGFR pathway somatic mutations in melanoma of varying subtypes”. Association for Molecular Pathology Annual Meeting. 2011. Grapevine, TX. 
  • Danilova OV, Froehlich HM, Hammour T, Kuemmerle NB, Levy NB, Kinlaw WB, Kaur P. “Prognostic value of fatty acid synthase and Spot 14 in diffuse large B-cell lymphoma”. United States and Canadian Academy of Pathologists (USCAP) Annual Meeting. 2011 February. San Antonio, TX. 
  • Ward BP, Froehlich HM, Lebel KA, Bissaillon CL, Lefferts JA, Tsongalis GJ. “Comparison of three DNA extraction methods from formalin fixed paraffin embedded tissues”. Association for Molecular Pathology Annual Meeting. 2010 November. San Jose, CA. 
  • Froehlich HM, Wartman D, Yan S, Storm C. “A case of equestrian pernio (chilblains) masquerading as cutaneous lupus erythematosus”. 47th American Society of Dermatopathology Annual Meeting. 2010 October. Atlanta, GA. 
  • Froehlich HM, Brennick J, Xie H, Israel M, Yan S. “Id2 expression in cutaneous nevi and melanomas”. 99th United States and Canadian Academy of Pathologists (USCAP) Annual Meeting. 2010 March. Washington, DC. 
  • Froehlich HM, Niemeyer E. “Determination of phthalate ester concentration in PET bottles exposed to UV radiation”. 227th American Chemical Society National Meeting. 2004 March. Anaheim, CA. 

Teaching Experience 

  • Assistant Laboratory Instructor, General Pathology – Geisel School of Medicine at Dartmouth 
  • Dermatopathology Didactic Conference (weekly), Melanoma Tumor Board (bimonthly), Cutaneous Lymphoma Tumor Board (monthly), and Dermatopathology Journal Club (monthly) – Dartmouth-Hitchcock Medical Center 
  • Annual Dermatology Resident Board Review Course 
  • Dermatopathology education for visiting Dermatology residents 
  • Annual lecture series: Cutaneous Drug Eruptions Journal Review 

Heather Froehlich, MD

Board-Certified Dermatopathologist
Download Profile

Dr. Heather Froehlich is a Board-Certified Dermatopathologist, also certified in anatomic and clinical pathology by the American Board of Pathology. She earned her medical degree from the University of Texas Health Science Center at San Antonio after completing a Bachelor of Arts in Chemistry at Southwestern University in Georgetown, Texas. Dr. Froehlich completed her residency in Anatomic and Clinical Pathology in New Hampshire at Dartmouth-Hitchcock Medical Center, where she remained for fellowship training in Dermatopathology. 

Dr. Froehlich specializes in the diagnosis and classification of skin cancers, including basal cell carcinoma, squamous cell carcinoma, and melanoma, along with complex inflammatory and infectious skin conditions. She has a special interest in clinicopathologic correlation, working closely with referring clinicians to support early detection, informed surgical planning, and better patient outcomes. An experienced educator, Dr. Froehlich has served as an Instructor of Pathology at Dartmouth-Hitchcock Medical Center, contributing to resident education and tumor board conferences. She has authored a book chapter and numerous peer-reviewed publications and abstracts presented at national meetings. 

Prior to joining Sagis, Dr. Froehlich served as Laboratory Medical Director and dermatopathologist for Preferred Dermatology in McKinney, Texas, overseeing dermatopathology services and diagnostic quality. She is a member of the American Society of Dermatopathology, American Academy of Dermatology, and Texas Medical Association. 

Education

Board Certifications

Dermatopathology

American Board of Pathology

Anatomic & Clinical Pathology

American Board of Pathology

Fellowship Training

Dermatopathology
Dartmouth-Hitchcock Medical Center
Lebanon, NH

Residency Training

Anatomic and Clinical Pathology
Dartmouth-Hitchcock Medical Center
Lebanon, NH

Medical School

University of Texas Health Science Center at San Antonio
San Antonio, TX

Undergraduate

Southwestern University
Georgetown, TX

Memberships

Research & Publications

Book Chapter 

  • Froehlich H, Plaza J. “Immunohistology and Molecular Studies of Epithelial Tumors”. In: Plaza J, Prieto V, eds. Applied Immunohistochemistry in the Evaluation of Skin Neoplasms. Springer Publication. 2016:3-24. 

Publications 

  • McGowan M, Eisenberg B, Lewis L, Froehlich H, Wells W, Eastman A, Kuemmerle N, Rosenkrantz K, Barth R, Schwartz G, Tosteson T, Kinlaw W. “A Proof of Principle Trial to Determine Whether Conjugated Linoleic Acid Modulates the Lipogenic Pathway in Human Breast Cancer Tissue”. Breast Cancer Res Treat. 2013;138(1):175-183. 
  • Kuemmerle NB, Rysman E, Lombardo PS, Flanagan AJ, Lipe BC, Wells WA, Pettus JR, Froehlich HM, Memoli VA, Morganelli PM, Swinnen JV, Timmerman LA, Chaychi L, Fricano CJ, Eisenberg BL, Coleman WB, Kinlaw WB. “Lipoprotein lipase links dietary fat to solid tumor cell proliferation”. Mol Cancer Ther. 2011;10(3):427-436. 
  • Pakalniskis M, Wells W, Schwab M, Froehlich H, Jiang S, Li Z, Tosteson T, Poplack S, Kaufman P, Paulsen K, Pogue B. “Tumor angiogenesis change estimated by using diffuse optical spectroscopic tomography: demonstrated correlation in women undergoing neoadjuvant chemotherapy for invasive breast cancer?” Radiology. 2011;259(2):365-374. 

Abstracts 

  • Froehlich HM, Ng DP, Memoli VA, Seidel GD. “Tumoral melanosis involving a sentinel lymph node with extracapsular extension: a case report with immunologic characterization”. 49th American Society of Dermatopathology Annual Meeting. 2012 October. Chicago, IL. 
  • Froehlich HM, Polito FA, Bridgeo CB, Lee HK. “Total and direct bilirubin measurements using eight different chemistry analyzers”. American Association for Clinical Chemistry National Meeting. 2012 July. Los Angeles, CA. 
  • Froehlich H, Schwab MC, Tsongalis GJ, Brennick JB. “Rapid identification of EGFR pathway somatic mutations in melanoma of varying subtypes”. Association for Molecular Pathology Annual Meeting. 2011. Grapevine, TX. 
  • Danilova OV, Froehlich HM, Hammour T, Kuemmerle NB, Levy NB, Kinlaw WB, Kaur P. “Prognostic value of fatty acid synthase and Spot 14 in diffuse large B-cell lymphoma”. United States and Canadian Academy of Pathologists (USCAP) Annual Meeting. 2011 February. San Antonio, TX. 
  • Ward BP, Froehlich HM, Lebel KA, Bissaillon CL, Lefferts JA, Tsongalis GJ. “Comparison of three DNA extraction methods from formalin fixed paraffin embedded tissues”. Association for Molecular Pathology Annual Meeting. 2010 November. San Jose, CA. 
  • Froehlich HM, Wartman D, Yan S, Storm C. “A case of equestrian pernio (chilblains) masquerading as cutaneous lupus erythematosus”. 47th American Society of Dermatopathology Annual Meeting. 2010 October. Atlanta, GA. 
  • Froehlich HM, Brennick J, Xie H, Israel M, Yan S. “Id2 expression in cutaneous nevi and melanomas”. 99th United States and Canadian Academy of Pathologists (USCAP) Annual Meeting. 2010 March. Washington, DC. 
  • Froehlich HM, Niemeyer E. “Determination of phthalate ester concentration in PET bottles exposed to UV radiation”. 227th American Chemical Society National Meeting. 2004 March. Anaheim, CA. 

Teaching Experience 

  • Assistant Laboratory Instructor, General Pathology – Geisel School of Medicine at Dartmouth 
  • Dermatopathology Didactic Conference (weekly), Melanoma Tumor Board (bimonthly), Cutaneous Lymphoma Tumor Board (monthly), and Dermatopathology Journal Club (monthly) – Dartmouth-Hitchcock Medical Center 
  • Annual Dermatology Resident Board Review Course 
  • Dermatopathology education for visiting Dermatology residents 
  • Annual lecture series: Cutaneous Drug Eruptions Journal Review 
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