Alejandro Ariel Gru, MD

Alejandro Ariel Gru, M.D.

Associate Professor of Pathology; Dermatopathology Fellowship Director


Medical School: Universidad de Buenos Aires, School of Medicine

Residency:Washington University at Saint Louis School of Medicine, Anatomic and Surgical Pathology

Fellowships: Dermatopathology, Hematopathology, Surgical Pathology


Skin lymphomas, T-cell and NK-cell Lymphomas, melanocytic pathology


Cutaneous lymphoproliferative and myeloproliferative disorders, T and NK-Cell lymphoma, EBV-lymphomagenesis


  • Hibler J, Salavaggione AL, Martin A, Gru AA: A unique case of concurrent chronic lymphocytic leukemia/small lymphocytic lymphoma and lymphomatoid papulosis in the same biopsy. J Cutan Pathol 2015, 42:276-284. DOI: 10.1111/cup.12435.
  • Kaffenberger B, Haverkos B, Tyler K, Wong HK, Porcu P, Gru AA: Extranodal Marginal Zone Lymphoma-like Presentations of Angioimmunoblastic T-Cell Lymphoma: A T-Cell Lymphoma Masquerading as a B-Cell Lymphoproliferative Disorder. Am J Dermatopathol 2015, 37:604-613. DOI: 10.1097/DAD.0000000000000266.
  • Fabbro SK, Smith SM, Dubovsky JA, Gru AA, Jones JA: Panniculitis in Patients Undergoing Treatment With the Bruton Tyrosine Kinase Inhibitor Ibrutinib for Lymphoid Leukemias. JAMA Oncol 2015, 1:684-686. DOI: 10.1001/jamaoncol.2015.0457.
  • Gru AA: Pathology of T-cell lymphomas: diagnosis and biomarker discovery. Cancer Treat Res 2015, 165:51-95. DOI: 10.1007/978-3-319-13150-4_3.
  • Gru AA, Coughlin CC, Schapiro ML, Lombardi M, Martin A, Bayliss SJ, Frater J, Dehner LP: Pediatric aleukemic leukemia cutis: report of 3 cases and review of the literature. Am J Dermatopathol 2015, 37:477-484. DOI: 10.1097/DAD.0000000000000190.
  • Samarghandi A, Gru AA, Natwa M, Barker DW: (18)FDG PET/CT appearance in primary cutaneous diffuse large B-cell lymphoma, leg type. Clin Nucl Med 2015, 40:506-508. DOI: 10.1097/RLU.0000000000000749.
  • Smith SM, Kiracofe EA, Clark LN, Gru AA: Idiopathic Hypereosinophilic Syndrome With Cutaneous Manifestations and Flame Figures: A Spectrum of Eosinophilic Dermatoses Whose Features Overlap With Wells’ Syndrome. Am J Dermatopathol 2015. DOI: 10.1097/DAD.0000000000000279.
  • Tyler KH, Haverkos BM, Hastings J, Hu E, Philips R, Gru AA, Welliver MX, Mishra A, Wong HK, Porcu P: The Role of an Integrated Multidisciplinary Clinic in the Management of Patients with Cutaneous Lymphoma. Front Oncol 2015, 5:136. DOI: 10.3389/fonc.2015.00136.
  • Coughlin CC, Council ML, Gru AA, Fields RC, Bayliss SJ: Malignant melanoma arising at the site of a previously excised giant congenital melanocytic nevus. JAMA Dermatol 2014, 150:100-101. DOI: 10.1001/jamadermatol.2013.5775.
  • Gru AA, Becker N, Dehner LP, Pfeifer JD: Mucosal melanoma: correlation of clinicopathologic, prognostic, and molecular features. Melanoma Res 2014, 24:360-370. DOI: 10.1097/CMR.0000000000000082.