All Stories

  1. Keratoacanthoma-Like Growths of Incontinentia Pigmenti Successfully Treated with Intralesional Methotrexate

    Article • Pediatric Dermatology, April 2017, Wiley

    Professor Klaus F Helm

  2. Granulomatous Ulcer Arising in a Child

    Article • Pediatric Dermatology, September 2016, Wiley

    Professor Klaus F Helm

  3. Gamma-delta T-cell lymphoma arising in a long-standing cutaneous plaque

    Article • Journal of Cutaneous Pathology, October 2015, Wiley

    Professor Klaus F Helm

  4. Lentigo Maligna Melanoma With Local and Distant Blue Nevus-like Metastases

    Article • American Journal of Dermatopathology, October 2015, Wolters Kluwer Health

    Professor Klaus F Helm

  5. Sa2005 Vasculitic Skin Rash As Initial Presentation in a Child With Crohn's Disease

    Article • Gastroenterology, April 2015, Elsevier

    Professor Klaus F Helm

  6. Multiple flesh-colored papules and plaques on the trunk

    Article • Journal of the American Academy of Dermatology, January 2015, Elsevier

    Professor Klaus F Helm

  7. Nodules on the Cheek of a 6-Year-Old Girl

    Article • Pediatric Dermatology, November 2014, Wiley

    Professor Klaus F Helm

  8. Breslow Thickness Determined With the Use of Immunohistochemical Techniques Could Provide Misleading Information When Used With Prognostic Models Based on Data Obtained by Conventional Means

    Article • American Journal of Dermatopathology, September 2014, Wolters Kluwer Health

    Professor Klaus F Helm

  9. Necrobiosis lipoidica occurring in a patient with rheumatoid arthritis on concurrent tumor necrosis factor-α inhibitor therapy

    Article • International Journal of Dermatology, April 2014, Wiley

    Professor Klaus F Helm

  10. Diffuse Telangiectasias on the Lower Extremities

    Article • JAMA Dermatology, April 2014, American Medical Association (AMA)

    Professor Klaus F Helm

  11. Onychomatricoma

    Article • Journal of the American Academy of Dermatology, February 2014, Elsevier

    Professor Klaus F Helm, Dr Eckart Haneke

  12. Color Atlas of Differential Diagnosis in Dermatopathology

    Article • January 2014, Jaypee Brothers Medical Publishing

    Professor Klaus F Helm

  13. Multifocal lymphangioendotheliomatosis with devastating intracranial hemorrhage

    Article • Journal of Neurosurgery Pediatrics, November 2013, Journal of Neurosurgery Publishing Group (JNSPG)

    Professor Klaus F Helm

  14. More evidence that genetic profiling will delineate the nosology and biologic potential of fibrohistiocytic tumors in the dermatofibrosarcoma protuberans spectrum

    Article • Journal of the American Academy of Dermatology, May 2013, Elsevier

    Professor Klaus F Helm

  15. Expression of CK7, Cam 5.2 and Ber-Ep4 in cutaneous squamous cell carcinoma

    Article • Journal of Cutaneous Pathology, April 2013, Wiley

    Professor Klaus F Helm

  16. NUT midline carcinoma with cutaneous metastases

    Article • Journal of the American Academy of Dermatology, August 2012, Elsevier

    Professor Klaus F Helm

  17. Verruciform xanthoma with porokeratosis-like features but no clinically apparent lymphedema

    Article • Journal of Cutaneous Pathology, July 2012, Wiley

    Professor Klaus F Helm

  18. Basal cell carcinoma characteristics as predictors of depth of invasion

    Article • Journal of the American Academy of Dermatology, July 2012, Elsevier

    Professor Klaus F Helm

  19. Assessing and communicating adequacy of biopsy specimens and clinical information

    Article • Journal of the American Academy of Dermatology, March 2012, Elsevier

    Professor Klaus F Helm

  20. Dermal dendritic cells in psoriasis, nummular dermatitis, and normal-appearing skin

    Article • Journal of the American Academy of Dermatology, January 2012, Elsevier

    Professor Klaus F Helm

  21. A Congenital Case of Circumscribed Acral Hypokeratosis

    Article • Pediatric Dermatology, June 2011, Wiley

    Professor Klaus F Helm

  22. A Firm Nodule on the Arm—Quiz Case

    Article • Archives of Dermatology, April 2011, American Medical Association (AMA)

    Professor Klaus F Helm

  23. Persistent melanocytic nevi: a review and analysis of 205 cases

    Article • Journal of Cutaneous Pathology, March 2011, Wiley

    Professor Klaus F Helm

  24. Cutaneous CD34+ Spindle Cell Neoplasms: Histopathologic Features Distinguish Spindle Cell Lipoma, Solitary Fibrous Tumor, and Dermatofibrosarcoma Protuberans

    Article • American Journal of Dermatopathology, December 2010, Wolters Kluwer Health

    Professor Klaus F Helm

  25. CD10-positive myxofibrosarcomas: a pitfall in the differential diagnosis of atypical fibroxanthoma

    Article • Journal of Cutaneous Pathology, February 2010, Wiley

    Professor Klaus F Helm

  26. Histiocytic erythema multiforme

    Article • Journal of Cutaneous Pathology, December 2009, Wiley

    Professor Klaus F Helm

  27. Cdc7 expression in melanomas, Spitz tumors and melanocytic nevi

    Article • Journal of Cutaneous Pathology, April 2009, Wiley

    Professor Klaus F Helm

  28. Immunohistochemistry of pigmented actinic keratoses, actinic keratoses, melanomasin situand solar lentigines with Melan-A

    Article • Journal of Cutaneous Pathology, October 2008, Wiley

    Professor Klaus F Helm

  29. Interstitial granulomatous drug reaction to anakinra

    Article • Journal of the American Academy of Dermatology, August 2008, Elsevier

    Professor Klaus F Helm

  30. Collagenous spherulosis in an oral mucous cyst

    Article • Journal of Cutaneous Pathology, April 2008, Wiley

    Professor Klaus F Helm

  31. Histopathologic findings and diagnostic difficulties posed with use of escharotic agents for treatment of skin lesions: a case report and review of the literature

    Article • Journal of Cutaneous Pathology, April 2008, Wiley

    Professor Klaus F Helm

  32. Plaque-like Myofibroblastic Tumor of Infancy

    Article • Pediatric Dermatology, September 2007, Wiley

    Professor Klaus F Helm

  33. Age distribution of biopsied junctional nevi

    Article • Journal of the American Academy of Dermatology, May 2007, Elsevier

    Professor Klaus F Helm

  34. Eruptive latent metastatic melanomas after initiation of antitumor necrosis factor therapies

    Article • Journal of the American Academy of Dermatology, May 2007, Elsevier

    Professor Klaus F Helm

  35. Bilateral Symmetrical Nodules on the Feet—Quiz Case

    Article • Archives of Dermatology, March 2007, American Medical Association (AMA)

    Professor Klaus F Helm

  36. Lichen Sclerosus of the Lip

    Article • Pediatric Dermatology, September 2006, Wiley

    Professor Klaus F Helm

  37. Clinical recurrence of actinic keratosis following marginal biopsy: a retrospective study

    Article • International Journal of Dermatology, September 2006, Wiley

    Professor Klaus F Helm

  38. Self-Assessment examination of the American Academy of Dermatology∗

    Article • Journal of the American Academy of Dermatology, September 2006, Elsevier

    Professor Klaus F Helm

  39. Death Receptor Apoptosis Signaling Mediated by FADD in CD30-Positive Lymphoproliferative Disorders Involving the Skin

    Article • The American Journal of Surgical Pathology, April 2005, Wolters Kluwer Health

    Professor Klaus F Helm

  40. Horizontal sections for the presence of eccrine glands

    Article • Journal of the American Academy of Dermatology, February 2005, Elsevier

    Professor Klaus F Helm

  41. Method of Mutation Analysis May Contribute to Discrepancies in Reports of V599EBRAF Mutation Frequencies in Melanocytic Neoplasms

    Article • Journal of Investigative Dermatology, November 2004, Elsevier

    Professor Klaus F Helm

  42. The Diameter of Melanomas

    Article • Dermatologic Surgery, September 2004, Wolters Kluwer Health

    Professor Klaus F Helm

  43. The Diameter of Melanomas

    Article • Dermatologic Surgery, September 2004, Wolters Kluwer Health

    Professor Klaus F Helm

  44. Cystic Basal Cell Carcinoma or Hidrocytoma?

    Article • American Journal of Dermatopathology, February 2004, Wolters Kluwer Health

    Professor Klaus F Helm

  45. Primary mucinous carcinoma in a 54-year-old man

    Article • Journal of the American Academy of Dermatology, November 2003, Elsevier

    Professor Klaus F Helm

  46. Cutaneous B-cell lymphoma with loss of CD20 immunoreactivity after rituximab therapy

    Article • Journal of Cutaneous Pathology, July 2003, Wiley

    Professor Klaus F Helm

  47. Erdheim-Chester Disease

    Article • Journal of Cutaneous Medicine and Surgery, April 2003, SAGE Publications

    Professor Klaus F Helm

  48. Alopecia Mucinosa: Report of a Case and Review

    Article • Journal of Cutaneous Medicine and Surgery, April 2003, SAGE Publications

    Professor Klaus F Helm

  49. Case reports and a review of the literature on ulcers mimicking pyoderma gangrenosum

    Article • International Journal of Dermatology, February 2003, Wiley

    Professor Klaus F Helm

  50. Nevoid Basal Cell Carcinoma Syndrome Associated with Lymphomatoid Papulosis

    Article • Dermatology, January 2003, Karger Publishers

    Professor Klaus F Helm

  51. Multiple Familial Trichoepitheliomas

    Article • American Journal of Dermatopathology, October 2002, Wolters Kluwer Health

    Professor Klaus F Helm

  52. CADASIL: Blood test versus skin biopsy?

    Article • Journal of the American Academy of Dermatology, May 2002, Elsevier

    Professor Klaus F Helm

  53. The significance of tumor persistence after incomplete excision of basal cell carcinoma

    Article • Journal of the American Academy of Dermatology, April 2002, Elsevier

    Professor Klaus F Helm

  54. Myxoid melanoma: Immunohistochemical studies and a review of the literature

    Article • Journal of the American Academy of Dermatology, February 2002, Elsevier

    Professor Klaus F Helm

  55. Dense inflammation does not mask residual primary basal cell carcinoma during Mohs micrographic surgery

    Article • Journal of the American Academy of Dermatology, August 2001, Elsevier

    Professor Klaus F Helm

  56. Trichoblastoma or trichoblastic carcinoma?

    Article • Journal of the American Academy of Dermatology, March 2001, Elsevier

    Professor Klaus F Helm

  57. Poromas of the head and neck

    Article • Journal of the American Academy of Dermatology, January 2001, Elsevier

    Professor Klaus F Helm

  58. Immunolocalization of 5α-Reductase Isozymes in Acne Lesions and Normal Skin

    Article • Archives of Dermatology, September 2000, American Medical Association (AMA)

    Professor Klaus F Helm

  59. Pemphigus foliaceus successfully treated with mycophenolate mofetil as a steroid-sparing agent

    Article • Journal of the American Academy of Dermatology, March 2000, Elsevier

    Professor Klaus F Helm

  60. An unusually aggressive trichoblastoma

    Article • Journal of the American Academy of Dermatology, February 2000, Elsevier

    Professor Klaus F Helm

  61. The Spectrum of Epidermal Nevi: A Case of Verrucous Epidermal Nevus Contiguous with Nevus Sebaceus

    Article • Pediatric Dermatology, May 1999, Wiley

    Professor Klaus F Helm

  62. Chemotherapy-induced inflammation in seborrheic keratoses mimicking disseminated herpes zoster

    Article • Journal of the American Academy of Dermatology, April 1999, Elsevier

    Professor Klaus F Helm

  63. Cytokeratin 20: A Marker For Diagnosing Merkel Cell Carcinoma

    Article • American Journal of Dermatopathology, February 1999, Wolters Kluwer Health

    Professor Klaus F Helm

  64. Localized limb cutaneous metastases

    Article • Journal of Surgical Oncology, April 1998, Wiley

    Professor Klaus F Helm

  65. Localized limb cutaneous metastases

    Article • Journal of Surgical Oncology, April 1998, Wiley

    Professor Klaus F Helm

  66. Histiocytes and fibroblastic rheumatism: Comment on the article by Romas et al

    Article • Arthritis & Rheumatism, February 1998, Wiley

    Professor Klaus F Helm

  67. Histiocytes and fibroblastic rheumatism: Comment on the article by Romas et al

    Article • Arthritis & Rheumatism, February 1998, Wiley

    Professor Klaus F Helm

  68. Granular Cell Dermatofibroma

    Article • Dermatologic Surgery, October 1997, Wolters Kluwer Health

    Professor Klaus F Helm

  69. Malignant Melanoma Masquerading as Malignant Fibrous Histiocytoma

    Article • American Journal of Dermatopathology, October 1997, Wolters Kluwer Health

    Professor Klaus F Helm

  70. The Immunohistochemical Characteristics of the Basosquamous Cell Carcinoma

    Article • Dermatologic Surgery, March 1997, Wolters Kluwer Health

    Professor Klaus F Helm

  71. A proposed new classification system for lichenoid keratosis

    Article • Journal of the American Academy of Dermatology, November 1996, Elsevier

    Professor Klaus F Helm

  72. Interstitial granulomatous dermatitis with arthritis

    Article • Journal of the American Academy of Dermatology, June 1996, Elsevier

    Professor Klaus F Helm

  73. Cell Surface Molecules in Basal Cell Carcinomas

    Article • Dermatologic Surgery, October 1995, Wolters Kluwer Health

    Professor Klaus F Helm

  74. Decreased Expression of the Human Progenitor Cell Antigen (CD34) in Morphea

    Article • American Journal of Dermatopathology, October 1995, Wolters Kluwer Health

    Professor Klaus F Helm

  75. Topical auranofin ointment for the treatment of plaque psoriasis

    Article • Journal of the American Academy of Dermatology, September 1995, Elsevier

    Professor Klaus F Helm

  76. Contact dermatitis from topical auranofin

    Article • Journal of the American Academy of Dermatology, May 1995, Elsevier

    Professor Klaus F Helm

  77. GENERALIZED NON-LANGERHANS CELL HISTIOCYTOSIS: FOUR CASES ILLUSTRATE A SPECTRUM OF DISEASE

    Article • International Journal of Dermatology, February 1995, Wiley

    Professor Klaus F Helm

  78. Malignant melanoma with clinical and histologic features of Merkel cell carcinoma

    Article • Journal of the American Academy of Dermatology, November 1994, Elsevier

    Professor Klaus F Helm

  79. BORST-JADASSOHN PHENOMENON ASSOCIATED WITH AN UNDIFFERENTIATED SPINDLE CELL NEOPLASM

    Article • International Journal of Dermatology, August 1994, Wiley

    Professor Klaus F Helm

  80. Granuloma annulare: An immunohistochemical study

    Article • Journal of Cutaneous Pathology, April 1994, Wiley

    Professor Klaus F Helm

  81. Palisading Cutaneous Fibrous Histiocytoma

    Article • American Journal of Dermatopathology, December 1993, Wolters Kluwer Health

    Professor Klaus F Helm

  82. Seborrheic keratoses with occult underlying basal cell carcinoma

    Article • Journal of the American Academy of Dermatology, November 1993, Elsevier

    Professor Klaus F Helm

  83. A clinical and pathologic study of histiocytosis X in adults

    Article • Journal of the American Academy of Dermatology, August 1993, Elsevier

    Professor Klaus F Helm

  84. Cutaneous metastases in patients with metastatic carcinoma: A retrospective study of 4020 patients

    Article • Journal of the American Academy of Dermatology, August 1993, Elsevier

    Professor Klaus F Helm

  85. Deposition of membrane attack complex in cutaneous lesions of lupus erythematosus

    Article • Journal of the American Academy of Dermatology, May 1993, Elsevier

    Professor Klaus F Helm

  86. Pityrosporum Folliculitis and Severe Pruritus in Two Patients With Hodgkin's Disease

    Article • Archives of Dermatology, March 1993, American Medical Association (AMA)

    Professor Klaus F Helm

  87. Tricholemmal Carcinoma of the Eyelid

    Article • American Journal of Ophthalmology, January 1993, Elsevier

    Professor Klaus F Helm

  88. Pyoderma gangrenosum-like ulcer in a patient with large granular lymphocytic leukemia

    Article • Journal of the American Academy of Dermatology, November 1992, Elsevier

    Professor Klaus F Helm

  89. Immunohis tochemical Stains in Extramammary Pagetʼs Disease

    Article • American Journal of Dermatopathology, October 1992, Wolters Kluwer Health

    Professor Klaus F Helm

  90. Malignant lymphoma and leukemia with prominent ulceration: Clinicopathologic correlation of 33 cases

    Article • Journal of the American Academy of Dermatology, October 1992, Elsevier

    Professor Klaus F Helm

  91. Benign Lymphocytic Infiltrate of the Skin: Correlation of Clinical and Pathologic Findings

    Article • Mayo Clinic Proceedings, August 1992, Elsevier

    Professor Klaus F Helm

  92. A clinical and histopathologic study of granulomatous rosacea

    Article • Journal of the American Academy of Dermatology, December 1991, Elsevier

    Professor Klaus F Helm

  93. Lichen Sclerosus et Atrophicus in Children and Young Adults

    Article • Pediatric Dermatology, June 1991, Wiley

    Professor Klaus F Helm

  94. Immunodermatology Update: The Immunologically Mediated Vesiculobullous Diseases

    Article • Mayo Clinic Proceedings, February 1991, Elsevier

    Professor Klaus F Helm

  95. Systemic Cytomegalovirus in a Patient with the Keratitis, Ichthyosis, and Deafness (KID) Syndrome

    Article • Pediatric Dermatology, March 1990, Wiley

    Professor Klaus F Helm

  96. The misspelling of pruritus

    Article • Journal of the American Academy of Dermatology, April 1989, Elsevier

    Professor Klaus F Helm

  97. Pseudoresistance to Pediculicides in a Case of Pubic Lice

    Article • Pediatric Dermatology, August 1988, Wiley

    Professor Klaus F Helm

  98. Epidermal Antigen Preservation with Freezing

    Article • American Journal of Dermatopathology, December 1986, Wolters Kluwer Health

    Professor Klaus F Helm

  99. Identification of Bullous Pemphigoid, Pemphigus, Laminin, and Anchoring Fibril Antigens in Human Fetal Skin

    Article • Journal of Investigative Dermatology, January 1985, Elsevier

    Professor Klaus F Helm

  100. Cutaneous Cancer and Radiotherapy

    Article • Wiley

    Professor Klaus F Helm