Timothy H McCalmont

Summary

Affiliation: University of California
Country: USA

Publications

  1. doi request reprint Polygonal CD34 positivity portends trichilemmal differentiation.
    Timothy H McCalmont
    J Cutan Pathol 37:923, 924-5. 2010
  2. doi request reprint An unconventional deep penetrating melanocytic nevus with microscopic involvement of regional lymph nodes
    Timothy H McCalmont
    Department of Pathology, University of California, San Francisco, CA, USA
    J Cutan Pathol 39:25-8. 2012
  3. ncbi request reprint Ducking stray "magic bullets": a Melan-A alert
    John C Maize
    Department of Dermatology, University of California, San Francisco, USA
    Am J Dermatopathol 25:162-5. 2003
  4. doi request reprint Fluorescence in situ hybridization as an ancillary tool in the diagnosis of ambiguous melanocytic neoplasms: a review of 804 cases
    Jeffrey P North
    Departments of Pathology Dermatology The Helen Diller Comprehensive Cancer Center, University of California, San Francisco, CA
    Am J Surg Pathol 38:824-31. 2014
  5. doi request reprint Neurofibroma-like spindle cell melanoma: CD34 fingerprint and CGH for diagnosis
    Iwei Yeh
    Department of Pathology, University of California, San Francisco, San Francisco, CA 94115, USA
    Am J Dermatopathol 34:668-70. 2012
  6. pmc NTRK3 kinase fusions in Spitz tumours
    Iwei Yeh
    Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
    J Pathol 240:282-290. 2016
  7. doi request reprint The stiff skin syndrome: case series, differential diagnosis of the stiff skin phenotype, and review of the literature
    Theodore Liu
    The Permanente Medical Group, San Francisco, California, USA
    Arch Dermatol 144:1351-9. 2008
  8. pmc Recurrent BRAF kinase fusions in melanocytic tumors offer an opportunity for targeted therapy
    Thomas Botton
    Departments of Dermatology and Pathology and Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
    Pigment Cell Melanoma Res 26:845-51. 2013
  9. doi request reprint Two pediatric cases of nonbullous histiocytoid neutrophilic dermatitis presenting as a cutaneous manifestation of lupus erythematosus
    Diana Camarillo
    Department of Dermatology, University of California, San Francisco, USA
    Arch Dermatol 144:1495-8. 2008
  10. doi request reprint Marked papillary dermal edema--an unreliable discriminator between polymorphous light eruption and lupus erythematosus or dermatomyositis
    Laura B Pincus
    Department of Pathology, University of California, San Francisco, San Francisco, CA 94115, USA
    J Cutan Pathol 37:416-25. 2010

Collaborators

Detail Information

Publications45

  1. doi request reprint Polygonal CD34 positivity portends trichilemmal differentiation.
    Timothy H McCalmont
    J Cutan Pathol 37:923, 924-5. 2010
  2. doi request reprint An unconventional deep penetrating melanocytic nevus with microscopic involvement of regional lymph nodes
    Timothy H McCalmont
    Department of Pathology, University of California, San Francisco, CA, USA
    J Cutan Pathol 39:25-8. 2012
    ..The illustrations are duplicated in both versions of the manuscript but the captions are not the same. The reader is encouraged to study both versions of the manuscript and consider the issue from both perspectives...
  3. ncbi request reprint Ducking stray "magic bullets": a Melan-A alert
    John C Maize
    Department of Dermatology, University of California, San Francisco, USA
    Am J Dermatopathol 25:162-5. 2003
  4. doi request reprint Fluorescence in situ hybridization as an ancillary tool in the diagnosis of ambiguous melanocytic neoplasms: a review of 804 cases
    Jeffrey P North
    Departments of Pathology Dermatology The Helen Diller Comprehensive Cancer Center, University of California, San Francisco, CA
    Am J Surg Pathol 38:824-31. 2014
    ..We conclude that FISH testing can help reduce the number of equivocal diagnoses in ambiguous melanocytic neoplasms, in particular if FISH testing is positive, and discuss the challenges and limitations of FISH in clinical practice. ..
  5. doi request reprint Neurofibroma-like spindle cell melanoma: CD34 fingerprint and CGH for diagnosis
    Iwei Yeh
    Department of Pathology, University of California, San Francisco, San Francisco, CA 94115, USA
    Am J Dermatopathol 34:668-70. 2012
    ..We also completed array-based comparative genomic hybridization, which demonstrated gain of chromosome 6p, loss of 6p and gain of 7. These two methods of analysis support a diagnosis of spindle cell melanoma...
  6. pmc NTRK3 kinase fusions in Spitz tumours
    Iwei Yeh
    Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
    J Pathol 240:282-290. 2016
    ..Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd...
  7. doi request reprint The stiff skin syndrome: case series, differential diagnosis of the stiff skin phenotype, and review of the literature
    Theodore Liu
    The Permanente Medical Group, San Francisco, California, USA
    Arch Dermatol 144:1351-9. 2008
    ....
  8. pmc Recurrent BRAF kinase fusions in melanocytic tumors offer an opportunity for targeted therapy
    Thomas Botton
    Departments of Dermatology and Pathology and Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
    Pigment Cell Melanoma Res 26:845-51. 2013
    ..The patient from whom the cell line was derived showed a durable clinical response to sorafenib. ..
  9. doi request reprint Two pediatric cases of nonbullous histiocytoid neutrophilic dermatitis presenting as a cutaneous manifestation of lupus erythematosus
    Diana Camarillo
    Department of Dermatology, University of California, San Francisco, USA
    Arch Dermatol 144:1495-8. 2008
    ..A recently described histopathologic variant of Sweet syndrome, to our knowledge, histiocytoid Sweet syndrome (HSS) has not been described in either pediatric or adult patients with LE...
  10. doi request reprint Marked papillary dermal edema--an unreliable discriminator between polymorphous light eruption and lupus erythematosus or dermatomyositis
    Laura B Pincus
    Department of Pathology, University of California, San Francisco, San Francisco, CA 94115, USA
    J Cutan Pathol 37:416-25. 2010
    ..Older reports also describe papillary dermal edema in microscopic sections of dermatomyositis (DM)...
  11. doi request reprint Melanoma associated with long-term voriconazole therapy: a new manifestation of chronic photosensitivity
    Daniel D Miller
    Department of Dermatology, University of California San Francisco, 1701 Divisadero St, San Francisco, CA 94143, USA
    Arch Dermatol 146:300-4. 2010
    ..Subsequent reports have implicated voriconazole as a cause of severe photosensitivity and accelerated photoaging, pseudoporphyria cutanea tarda, and aggressive squamous cell carcinoma...
  12. doi request reprint Distinguishing neurofibroma from desmoplastic melanoma: the value of the CD34 fingerprint
    Iwei Yeh
    Department of Pathology, University of California, San Francisco, CA, USA
    J Cutan Pathol 38:625-30. 2011
    ..We conclude that CD34 fingerprint immunoreactivity is useful in distinguishing neurofibroma from early desmoplastic melanoma, especially if the fingerprint involves more than 60% of a tumor's cross-sectional area...
  13. doi request reprint Quantitative comparison of MiTF, Melan-A, HMB-45 and Mel-5 in solar lentigines and melanoma in situ
    Jinah Kim
    Department of Pathology, Stanford University, Stanford, CA 94305, USA
    J Cutan Pathol 38:775-9. 2011
    ..Therefore, dermatopathologists routinely use immunostains to help differentiate melanocytes from surrounding keratinocytes...
  14. pmc Activating MET kinase rearrangements in melanoma and Spitz tumours
    Iwei Yeh
    1 Departments of Dermatology and Pathology, and Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California 94143, USA 2 Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California 94143, USA
    Nat Commun 6:7174. 2015
    ..MET fusion kinases thus provide a potential therapeutic target for a rare subset of melanoma for which currently no targeted therapeutic options currently exist. ..
  15. pmc Clinical, histopathologic, and genomic features of Spitz tumors with ALK fusions
    Iwei Yeh
    Departments of Dermatology and Pathology, University of California, San Francisco, CA Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY Department of Biopathologie, Centre Leon Berard, Leon, France
    Am J Surg Pathol 39:581-91. 2015
    ..In conclusion, Spitz tumors with ALK rearrangement show distinct histopathologic features that should aid in improving classification of these diagnostically challenging tumors. ..
  16. doi request reprint Melanoma ex blue nevus: two cases resembling large plaque-type blue nevus with subcutaneous cellular nodules
    Jeffrey P North
    Departments of Pathology and Dermatology, University of California, San Francisco, CA, USA
    J Cutan Pathol 39:1094-9. 2012
    ..Molecular techniques can provide valuable insights in these types of difficult melanocytic neoplasms...
  17. doi request reprint Plexiform melanocytic schwannoma: a mimic of melanoma
    Iwei Yeh
    Department of Pathology, University of California, San Francisco, CA, USA
    J Cutan Pathol 39:521-5. 2012
    ..The differential diagnosis included melanoma, melanotic schwannoma and cutaneous melanocytoneuroma, and we compare and contrast our case with these entities...
  18. doi request reprint Use of an expanded immunohistochemical panel to distinguish cutaneous Hodgkin lymphoma from histopathologic imitators
    Raymond J Cho
    Department of Dermatology, University of California San Francisco, 1701 Divisadero St, San Francisco, CA 94115, USA
    J Cutan Pathol 39:651-8. 2012
    ..To our knowledge, this is the first report of the expression pattern of the combination of PAX5, Oct-2 and BOB.1 in the context of cutaneous involvement by Hodgkin lymphoma...
  19. doi request reprint Perifollicular xanthomatosis as the hallmark of axillary Fox-Fordyce disease: an evaluation of histopathologic features of 7 cases
    Adolfo B Bormate
    Section of Dermatopathology, Department of Pathology, University of California, San Francisco, 1701 Divisadero St, San Francisco, CA 94115, USA
    Arch Dermatol 144:1020-4. 2008
    ..In this study, we evaluated both established and new histopathologic criteria for the diagnosis of FFD and searched for other meaningful findings...
  20. doi request reprint Basal cell carcinomas arising within multiple trichoepitheliomas
    Laura B Pincus
    Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
    J Cutan Pathol 35:59-64. 2008
    ..This report is a compelling example of MFT in which BCCs evolved secondarily. Awareness of the potential for the evolution of carcinoma in patients with MFT is important in the management of these patients...
  21. doi request reprint Immunohistochemical prognostication of Merkel cell carcinoma: p63 expression but not polyomavirus status correlates with outcome
    Brian J Hall
    Department of Pathology, University of Utah, Salt Lake City, UT, USA
    J Cutan Pathol 39:911-7. 2012
    ..Larger studies will need to be performed in order to determine whether p63 status should be included in MCC staging, since our study is limited by its relative small size...
  22. doi request reprint PAX8 discriminates ovarian metastases from adnexal tumors and other cutaneous metastases
    Mika Fujiwara
    Department of Pathology, Stanford University Medical Center, Stanford, CA 94305 5324, USA
    J Cutan Pathol 37:938-43. 2010
    ..Identification of ovarian cutaneous metastases may be of benefit in patients with familial breast-ovarian carcinoma syndrome...
  23. doi request reprint Subcutaneous panniculitis-like T-cell lymphoma with overlapping clinicopathologic features of lupus erythematosus: coexistence of 2 entities?
    Laura B Pincus
    Departments of Dermatology and daggerPathology, University of California San Francisco, San Francisco, CA, USA
    Am J Dermatopathol 31:520-6. 2009
    ..Additionally, screening for cutaneous LE and SLE could be considered in patients with SPTCL...
  24. doi request reprint Evaluation of CD10 and procollagen 1 expression in atypical fibroxanthoma and dermatofibroma
    Sebastien de Feraudy
    Department of Pathology, University of California at San Francisco, San Francisco, CA 94115, USA
    Am J Surg Pathol 32:1111-22. 2008
    ..Lastly, out data includes over 80 examples of AFX, <5% of which showed keratin labeling. Given a general lack of keratin expression, it seems unlikely that AFX merely represents poorly differentiated squamous carcinoma...
  25. ncbi request reprint Lymphomatoid papulosis associated with mycosis fungoides: a study of 21 patients including analyses for clonality
    Herschel S Zackheim
    Department of Dermatology, University of California, San Francisco, CA, USA
    J Am Acad Dermatol 49:620-3. 2003
    ..Although an association of lymphomatoid papulosis (LyP) with mycosis fungoides (MF) is recognized, our understanding of this relation is limited...
  26. doi request reprint Multiple Hereditary Infundibulocystic Basal Cell Carcinoma Syndrome Associated With a Germline SUFU Mutation
    Joshua M Schulman
    Department of Dermatology, University of California, San Francisco2Department of Pathology, University of California, San Francisco
    JAMA Dermatol 152:323-7. 2016
    ..The cause is unknown. The purpose of the study was to identify a genetic basis for the syndrome and a mechanism by which the associated tumors develop...
  27. doi request reprint SOX-10 expression in cutaneous myoepitheliomas and mixed tumors
    Agne Naujokas
    Department of Pathology, University of California, San Francisco, CA, USA
    J Cutan Pathol 41:353-63. 2014
    ..SOX-10 expression can be demonstrated by immunohistochemistry in salivary gland myoepitheliomas, but its expression in cutaneous myoepitheliomas and in cutaneous mixed tumors with prominent myoepithelial cells has not been studied...
  28. doi request reprint Spitz nevi, atypical spitzoid neoplasms, and spitzoid melanoma
    Daniel C Zedek
    University of California, San Francisco, Dermatopathology, 94115, USA
    Clin Lab Med 31:311-20. 2011
    ....
  29. doi request reprint Clinical update on graft-versus-host disease in children
    Deborah S Goddard
    Department of Dermatology, Division of Pediatric Dermatology, University of California, San Francisco, CA 94115, USA
    Semin Cutan Med Surg 29:92-105. 2010
    ..We discuss 5 cases with clinico-pathologic correlation to illustrate the key concepts and principles underlying the diagnosis and management of both acute and chronic GVHD...
  30. ncbi request reprint Mycosis fungoides: the great imitator
    Herschel S Zackheim
    Department of Dermatology, University of California, San Francisco, USA
    J Am Acad Dermatol 47:914-8. 2002
    ..With the additional 2 dermatoses now presented, this yields a total of at least 25 diseases that can be simulated by MF. In view of the considerable number of dermatoses simulated by MF, the term the great imitator is appropriate for MF...
  31. doi request reprint Keratitis, ichthyosis, and deafness syndrome: a review of infectious and neoplastic complications
    Kathleen Coggshall
    Department of Dermatology, University of California, San Francisco, School of Medicine, San Francisco, California 94115, USA
    J Am Acad Dermatol 69:127-34. 2013
    ..A review of the literature, with a particular focus on infection and malignancy associated with KID syndrome, and updates on the pathogenesis of disease, is discussed...
  32. pmc Combined targeting of MEK and PI3K/mTOR effector pathways is necessary to effectively inhibit NRAS mutant melanoma in vitro and in vivo
    Christian Posch
    Department of Dermatology, Mount Zion Cancer Research Center, San Francisco, CA 94115, USA
    Proc Natl Acad Sci U S A 110:4015-20. 2013
    ....
  33. doi request reprint An isolated Merkel cell carcinoma metastasis at a distant cutaneous site presenting as a second 'primary' tumor
    Iris Z Ahronowitz
    Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
    J Cutan Pathol 38:801-7. 2011
    ..Our data calls into question prior reports alleging multiple cutaneous primaries of this very rare tumor...
  34. doi request reprint Desmoplastic cellular neurothekeoma: Clinicopathological analysis of twelve cases
    Daniel C Zedek
    Depts of Pathology and Dermatology, University of California, San Francisco, 94115, USA
    J Cutan Pathol 36:1185-90. 2009
    ..Cellular neurothekeoma is a benign lesion most commonly found on the face and upper extremities in the first two decades of life...
  35. ncbi request reprint Perineural spread of malignant melanoma of the head and neck: clinical and imaging features
    Patrick C Chang
    Department of Radiology, University of California, San Francisco, School of Medicine, San Francisco, CA 94143, USA
    AJNR Am J Neuroradiol 25:5-11. 2004
    ....
  36. pmc Cutaneous Spitzoid melanoma in a very young girl of Asian descent
    Suzette G Miranda
    Department of Surgery, University of California at San Francisco, San Francisco, California, USA
    BMJ Case Rep 2011:. 2011
    ..While this clearly is an uncommon demographic, it seeks to highlight important differences in racial predilection for Spitzoid melanoma...
  37. ncbi request reprint A spindled cell CD34+ dermal proliferation
    Jan Pitha
    Department of Pathology, College of Medicine, University of Oklahoma, Oklahoma City, Oklahoma, USA
    Am J Dermatopathol 24:85-8. 2002
  38. doi request reprint Neutrophil-rich subcutaneous fat necrosis of the newborn: A potential mimic of infection
    Roberto R Ricardo-Gonzalez
    Department of Dermatology, University of California, San Francisco, California
    J Am Acad Dermatol 75:177-185.e17. 2016
    ..However, we encountered patients with SCFN whose biopsy specimens revealed mostly neutrophils, prompting infection to be an initial consideration...
  39. ncbi request reprint Cutaneous manifestations of hyper-IgE syndrome in infants and children
    Sarah L Chamlin
    Department of Dermatology, University of California, San Francisco, USA
    J Pediatr 141:572-5. 2002
    ..The diagnosis of hyper-IgE syndrome was made an average of 18 months after the onset of the initial papulopustular eruption. These findings may lead to earlier recognition of the disease and institution of appropriate treatment...
  40. pmc The distribution of cutaneous metastases correlates with local immunologic milieu
    Joshua M Schulman
    Department of Dermatology, University of California, San Francisco, California Department of Pathology, University of California, San Francisco, California
    J Am Acad Dermatol 74:470-6. 2016
    ..Metastases to the skin are found with increased frequency at certain sites, such as the scalp, but the biological factors that influence this distribution are not understood...
  41. doi request reprint Spitz Nevi, Atypical Spitzoid Neoplasms, and Spitzoid Melanoma
    Daniel C Zedek
    University of California, San Francisco, Dermatopathology, 1701 Divisadero Street, Suite 350, San Francisco, CA 94115, USA
    Surg Pathol Clin 2:497-510. 2009
    ....
  42. doi request reprint An unusual infiltrative basal cell carcinoma with osteoclastic stromal changes mimicking carcinosarcoma: a case report
    Mehmet Gamsizkan
    Department of Pathology, Erzurum Military Hospital, Erzurum, Turkey Departments of Pathology and Dermatology, Dermatopathology Service, University of California San Francisco, San Francisco, CA and Department of Pathology, Eskisehir Military Hospital, Eskisehir, Turkey
    Am J Dermatopathol 37:26-30. 2015
    ..We herein reported a case of unusual infiltrative basal cell carcinoma, accompanied by a clear cell carcinomatous features and concurrent benign osteoclastic stromal changes...
  43. doi request reprint Supraorbital cutaneous fetal rhabdomyoma of intermediate type: a case report
    Sara H Yang
    Departments of Pathology, and Dermatology, University of California, San Francisco, CA
    Am J Dermatopathol 36:e93-6. 2014
    ..Additional immunostaining performed on the excisional specimen showed strong Wilms Tumor 1 but only a very faint and focal p63 expression...
  44. doi request reprint 20q- clonality in a case of oral sweet syndrome and myelodysplasia
    Katherine Van Loon
    University of California San Francisco, 505 Parnassus Avenue, San Francisco, CA 94143, USA
    Am J Clin Pathol 137:310-5. 2012
    ....
  45. pmc Systemic and cell type-specific gene expression patterns in scleroderma skin
    Michael L Whitfield
    Department of Dermatology, University of California San Francisco, San Francisco, CA 94143, USA
    Proc Natl Acad Sci U S A 100:12319-24. 2003
    ..These results provide evidence that scleroderma has systemic manifestations that affect multiple cell types and suggests genes that could be used as potential markers for the disease...