Difference between revisions of "HAEM5:Primary cutaneous CD8-positive aggressive epidermotropic cytotoxic T-cell lymphoma"

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{| class="wikitable"
 
{| class="wikitable"
 
|'''Signs and Symptoms'''
 
|'''Signs and Symptoms'''
|Localized papules (less common)
+
|Diffusely distributed papules (common)
Diffusely distributed papules (common)
+
Localized papules (less common)
  
 
Ulcerated nodules, tumors, and plaques
 
Ulcerated nodules, tumors, and plaques
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==Morphologic Features==
 
==Morphologic Features==
  
Put your text here
+
Pagetoid epithelial involvement (epidermal and adnexal) are typically observed, however the infiltrate may involve the entire dermis. <ref name=":2" /><ref>{{Cite journal|last=Saruta|first=Hiroshi|last2=Ohata|first2=Chika|last3=Muto|first3=Ikko|last4=Imamura|first4=Taichi|last5=Oku|first5=Eijiro|last6=Ohshima|first6=Koichi|last7=Nagafuji|first7=Koji|last8=Nakama|first8=Takekuni|date=2017-09|title=Hematopoietic stem cell transplantation in advanced cutaneous T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/28391645/|journal=The Journal of Dermatology|volume=44|issue=9|pages=1038–1042|doi=10.1111/1346-8138.13848|issn=1346-8138|pmid=28391645}}</ref> The dermal infiltrates range from monomorphic to pleomorphic. Rimming of subcutaneous fat spaces has been reported.Spongiosis can result in blister formation.<ref name=":4">{{Cite journal|last=Nofal|first=Ahmad|last2=Abdel-Mawla|first2=M. Yousry|last3=Assaf|first3=Magda|last4=Salah|first4=Eman|date=2012-10|title=Primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma: proposed diagnostic criteria and therapeutic evaluation|url=https://pubmed.ncbi.nlm.nih.gov/22226429/|journal=Journal of the American Academy of Dermatology|volume=67|issue=4|pages=748–759|doi=10.1016/j.jaad.2011.07.043|issn=1097-6787|pmid=22226429}}</ref>
 +
 
 +
The tumor cells typically consist of atypical small to large lymphocytes with indented nuclei, minimal cytoplasm, and occasional immunoblastic features. Histological signs of cytotoxicity are evident, including epidermal necrosis or ulceration, dermal necrosis, karyorrhexis, and rare angiocentric destruction.<ref name=":1" /><ref name=":2" /><ref name=":4" /> Ulceration can resemble pyoderma gangrenosum.<ref>{{Cite journal|last=Deenen|first=N. J.|last2=Koens|first2=L.|last3=Jaspars|first3=E. H.|last4=Vermeer|first4=M. H.|last5=Willemze|first5=R.|last6=de Rie|first6=M. A.|last7=Bekkenk|first7=M. W.|date=2019-02|title=Pitfalls in diagnosing primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/30259963/|journal=The British Journal of Dermatology|volume=180|issue=2|pages=411–412|doi=10.1111/bjd.17252|issn=1365-2133|pmid=30259963}}</ref> Notably, atypical CD8+ cytotoxic T cells exhibit pronounced pagetoid epidermotropism, particularly in cases with widespread lesions.<ref name=":0" /><ref>{{Cite journal|last=Willemze|first=Rein|last2=Jaffe|first2=Elaine S.|last3=Burg|first3=Günter|last4=Cerroni|first4=Lorenzo|last5=Berti|first5=Emilio|last6=Swerdlow|first6=Steven H.|last7=Ralfkiaer|first7=Elisabeth|last8=Chimenti|first8=Sergio|last9=Diaz-Perez|first9=José L.|date=2005-05-15|title=WHO-EORTC classification for cutaneous lymphomas|url=https://pubmed.ncbi.nlm.nih.gov/15692063/|journal=Blood|volume=105|issue=10|pages=3768–3785|doi=10.1182/blood-2004-09-3502|issn=0006-4971|pmid=15692063}}</ref>
  
 
==Immunophenotype==
 
==Immunophenotype==
 
Put your text here and fill in the table <span style="color:#0070C0">(''Instruction: Can include references in the table'') </span>
 
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
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!Finding!!Marker
 
!Finding!!Marker
 
|-
 
|-
|Positive (universal)||EXAMPLE CD1
+
|Positive (universal)||βF1+, TIA1+, granzyme B+, perforin+, CCR4+, CD45RA+, pSTAT3+, pSTAT5+, Ki-67+
 
|-
 
|-
|Positive (subset)||EXAMPLE CD2
+
|Positive (subset)||CD8+ or CD8−/CD4−
 
|-
 
|-
|Negative (universal)||EXAMPLE CD3
+
|Negative (universal)||TCRγδ−, TCRδ−
 
|-
 
|-
|Negative (subset)||EXAMPLE CD4
+
|Negative (subset)||CD2− and/or CD5− <ref name=":2" />
 
|}
 
|}
 +
Immunohistochemistry for phosphorylated STAT3 and STAT5 can be utilized to identify activation of the JAK/STAT pathway.<ref name=":5">{{Cite journal|last=Lee|first=Katie|last2=Evans|first2=Mark G.|last3=Yang|first3=Lei|last4=Ng|first4=Spencer|last5=Snowden|first5=Caroline|last6=Khodadoust|first6=Michael|last7=Brown|first7=Ryanne A.|last8=Trum|first8=Nicholas A.|last9=Querfeld|first9=Christiane|date=2021-12-09|title=Primary cytotoxic T-cell lymphomas harbor recurrent targetable alterations in the JAK-STAT pathway|url=https://pubmed.ncbi.nlm.nih.gov/34432866/|journal=Blood|volume=138|issue=23|pages=2435–2440|doi=10.1182/blood.2021012536|issn=1528-0020|pmc=8662071|pmid=34432866}}</ref><ref name=":6">{{Cite journal|last=Fanoni|first=Daniele|last2=Corti|first2=Laura|last3=Alberti-Violetti|first3=Silvia|last4=Tensen|first4=Cornelis P.|last5=Venegoni|first5=Luigia|last6=Vermeer|first6=Maarten|last7=Willemze|first7=Rein|last8=Berti|first8=Emilio|date=2018-12|title=Array-based CGH of primary cutaneous CD8+ aggressive EPIDERMO-tropic cytotoxic T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/30307677/|journal=Genes, Chromosomes & Cancer|volume=57|issue=12|pages=622–629|doi=10.1002/gcc.22673|issn=1098-2264|pmid=30307677}}</ref><ref name=":3" />
  
 
==Chromosomal Rearrangements (Gene Fusions)==
 
==Chromosomal Rearrangements (Gene Fusions)==
 
+
In PCAETL, recurrent genomic events affecting genes involved in the cell cycle, chromatin regulation, and the JAK/STAT pathway have been reported, including complex genomic rearrangements and diverse JAK2 fusions.<ref name=":6" />Upregulated JAK-2 signaling is a consistent finding in nearly all cases, distinguishing PCAETL from other cytotoxic cutaneous T-cell lymphomas.Cases without JAK2 fusions often exhibit gain-of-function mutations in JAK2, STAT3, and STAT5B, alongside loss of negative regulators of the JAK/STAT pathway, particularly SH2B3.<ref name=":3" />  
<br />
 
 
 
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
 
|-
 
|-
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!Notes
 
!Notes
 
|-
 
|-
|JAK2 fusions||KHDRBS1-JAK2, PCM1-JAK2, TFG-JAK2||Self-oligo/dimerization of JAK2||Detected in 3 out of 12 patients
+
|JAK2 fusions||KHDRBS1-JAK2, PCM1-JAK2, TFG-JAK2||Self-oligo/dimerization of JAK2||
 
|Yes
 
|Yes
 
|Unknown
 
|Unknown
 
|Yes
 
|Yes
|Confer cytokine-independent survival ability, potential therapeutic target with JAK inhibitors.<ref name=":3">{{Cite journal|title=Deregulation of JAK2 signaling underlies primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/33792220/|journal=Haematologica|date=2022-03-01|issn=1592-8721|pmc=8883537|pmid=33792220|pages=702–714|volume=107|issue=3|doi=10.3324/haematol.2020.274506|first=Armando N.|last=Bastidas Torres|first2=Davy|last2=Cats|first3=Jacoba J.|last3=Out-Luiting|first4=Daniele|last4=Fanoni|first5=Hailiang|last5=Mei|first6=Luigia|last6=Venegoni|first7=Rein|last7=Willemze|first8=Maarten H.|last8=Vermeer|first9=Emilio|last9=Berti}}</ref>
+
|Confer cytokine-independent survival ability, potential therapeutic target with JAK inhibitors.<ref name=":5" /><ref name=":6" /><ref name=":3">{{Cite journal|title=Deregulation of JAK2 signaling underlies primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/33792220/|journal=Haematologica|date=2022-03-01|issn=1592-8721|pmc=8883537|pmid=33792220|pages=702–714|volume=107|issue=3|doi=10.3324/haematol.2020.274506|first=Armando N.|last=Bastidas Torres|first2=Davy|last2=Cats|first3=Jacoba J.|last3=Out-Luiting|first4=Daniele|last4=Fanoni|first5=Hailiang|last5=Mei|first6=Luigia|last6=Venegoni|first7=Rein|last7=Willemze|first8=Maarten H.|last8=Vermeer|first9=Emilio|last9=Berti}}</ref>
 
|}
 
|}
 
 
 
==Individual Region Genomic Gain / Loss / LOH==
 
==Individual Region Genomic Gain / Loss / LOH==
 
<br />
 
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
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|Unknown
 
|Unknown
 
|No
 
|No
|Common in fusion-negative cases.<ref name=":3" />
+
|Common in fusion-negative cases.<ref name=":5" /><ref name=":6" /><ref name=":3" />
 
|}
 
|}
 
==Characteristic Chromosomal Patterns==
 
==Characteristic Chromosomal Patterns==
 
<br />
 
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
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|Unknown
 
|Unknown
 
|Unknown
 
|Unknown
|Identified in fusion-negative cases.<ref name=":3" />
+
|Identified in fusion-negative cases.<ref name=":5" /><ref name=":6" /><ref name=":3" />
 
|}
 
|}
 
==Gene Mutations (SNV / INDEL)==
 
==Gene Mutations (SNV / INDEL)==
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Fusion genes: KHDRBS1-JAK2, PCM1-JAK2, TFG-JAK2
 
Fusion genes: KHDRBS1-JAK2, PCM1-JAK2, TFG-JAK2
 
|Self-oligo/dimerization
 
|Self-oligo/dimerization
|Detected in 3 out of 12 patients
+
|
 
|MYC fusions
 
|MYC fusions
 
|PTPRC, SH2B3
 
|PTPRC, SH2B3
Line 183: Line 178:
 
|Unknown
 
|Unknown
 
|Yes
 
|Yes
|Potential therapeutic target with JAK inhibitors.<ref name=":3" />
+
|Potential therapeutic target with JAK inhibitors.<ref name=":5" /><ref name=":6" /><ref name=":3" />
 
|}
 
|}
<br />
 
 
 
==Epigenomic Alterations==
 
==Epigenomic Alterations==
  
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==Additional Information==
 
==Additional Information==
 +
PCAETL has an aggressive progression, with a median survival time of 12 months. The prognosis is similar regardless of whether the morphology is small or large cell, or whether the lesions are localized or diffuse.<ref name=":1" />
  
 
==Links==
 
==Links==

Revision as of 20:30, 14 July 2024


Haematolymphoid Tumours (5th ed.)

(General Instructions – The main focus of these pages is the clinically significant genetic alterations in each disease type. Use HUGO-approved gene names and symbols (italicized when appropriate), HGVS-based nomenclature for variants, as well as generic names of drugs and testing platforms or assays if applicable. Please complete tables whenever possible and do not delete them (add N/A if not applicable in the table and delete the examples). Please do not delete or alter the section headings. The use of bullet points alongside short blocks of text rather than only large paragraphs is encouraged. Additional instructions below in italicized blue text should not be included in the final page content. Please also see Author_Instructions and FAQs as well as contact your Associate Editor or Technical Support)

Primary Author(s)*

Ahmed Eladely, MBBCh. Andrew Siref, MD.

Creighton University, Omaha, NE.

Cancer Category / Type

Book WHO Classification of Disease - Haematolymphoid Tumours (5th ed.)
Category T-cell and NK-cell lymphoid proliferations and lymphomas
Family Mature T-cell and NK-cell neoplasms
Type Primary cutaneous T-cell lymphoid proliferations and lymphomas
Subtype Primary cutaneous CD8-positive aggressive epidermotropic cytotoxic T-cell lymphoma

Cancer Sub-Classification / Subtype

None

Definition / Description of Disease

Primary cutaneous CD8-positive aggressive epidermotropic cytotoxic T-cell lymphoma (PCAETL) is a rare and poorly characterized neoplastic proliferation of T lymphocytes with CD8 expression and cytotoxic molecules. PACETL is marked by epidermal necrosis, a high proliferation index, and aggressive clinical behavior. It should be distinguished from other rare epidermotropic subtypes of cutaneous gamma-delta T-cell lymphomas (such as gamma-delta mycosis fungoides), CD8+ mycosis fungoides, localized pagetoid reticulosis, type D lymphomatoid papulosis and Woringer-Kolopp disease.[1][2][3]

Synonyms / Terminology

Ketron–Goodman, disseminated pagetoid reticulosis, Berti lymphoma (Historical)

Epidemiology / Prevalence

PCAETL is rare, comprising less than 1% of all cutaneous T-cell lymphomas. It typically occurs in adults and shows a predilection for males.[1][3]

Clinical Features

Signs and Symptoms Diffusely distributed papules (common)

Localized papules (less common)

Ulcerated nodules, tumors, and plaques

Erosion or central necrosis

Preceded by chronic, poorly defined patches (subset)

Disseminate to visceral sites (lungs, testes, CNS)

Lymph nodes spared

No association with immunosuppression[1][2][3]

Laboratory Findings None

Sites of Involvement

PACETL can present with either localized or generalized skin lesions and may affect oral mucosa.[4]

Morphologic Features

Pagetoid epithelial involvement (epidermal and adnexal) are typically observed, however the infiltrate may involve the entire dermis. [3][5] The dermal infiltrates range from monomorphic to pleomorphic. Rimming of subcutaneous fat spaces has been reported.Spongiosis can result in blister formation.[6]

The tumor cells typically consist of atypical small to large lymphocytes with indented nuclei, minimal cytoplasm, and occasional immunoblastic features. Histological signs of cytotoxicity are evident, including epidermal necrosis or ulceration, dermal necrosis, karyorrhexis, and rare angiocentric destruction.[2][3][6] Ulceration can resemble pyoderma gangrenosum.[7] Notably, atypical CD8+ cytotoxic T cells exhibit pronounced pagetoid epidermotropism, particularly in cases with widespread lesions.[1][8]

Immunophenotype

Finding Marker
Positive (universal) βF1+, TIA1+, granzyme B+, perforin+, CCR4+, CD45RA+, pSTAT3+, pSTAT5+, Ki-67+
Positive (subset) CD8+ or CD8−/CD4−
Negative (universal) TCRγδ−, TCRδ−
Negative (subset) CD2− and/or CD5− [3]

Immunohistochemistry for phosphorylated STAT3 and STAT5 can be utilized to identify activation of the JAK/STAT pathway.[9][10][11]

Chromosomal Rearrangements (Gene Fusions)

In PCAETL, recurrent genomic events affecting genes involved in the cell cycle, chromatin regulation, and the JAK/STAT pathway have been reported, including complex genomic rearrangements and diverse JAK2 fusions.[10]Upregulated JAK-2 signaling is a consistent finding in nearly all cases, distinguishing PCAETL from other cytotoxic cutaneous T-cell lymphomas.Cases without JAK2 fusions often exhibit gain-of-function mutations in JAK2, STAT3, and STAT5B, alongside loss of negative regulators of the JAK/STAT pathway, particularly SH2B3.[11]

Chromosomal Rearrangement Genes in Fusion (5’ or 3’ Segments) Pathogenic Derivative Prevalence Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
JAK2 fusions KHDRBS1-JAK2, PCM1-JAK2, TFG-JAK2 Self-oligo/dimerization of JAK2 Yes Unknown Yes Confer cytokine-independent survival ability, potential therapeutic target with JAK inhibitors.[9][10][11]

Individual Region Genomic Gain / Loss / LOH

Chr # Gain / Loss / Amp / LOH Minimal Region Genomic Coordinates [Genome Build] Minimal Region Cytoband Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
1p Deletion 1p Yes Unknown No Associated with chromatin remodeling and tumor suppression.
8p Deletion 8p Yes Unknown No Common in fusion-negative cases.[9][10][11]

Characteristic Chromosomal Patterns

Chromosomal Pattern Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
Deletions within 1p, 8p, 9q, 10p, 11q and 13q; gains within 7q, 8q, 17q and 21q Yes Unknown Unknown Identified in fusion-negative cases.[9][10][11]

Gene Mutations (SNV / INDEL)

Gene; Genetic Alteration Presumed Mechanism (Tumor Suppressor Gene [TSG] / Oncogene / Other) Prevalence (COSMIC / TCGA / Other) Concomitant Mutations Mutually Exclusive Mutations Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
JAK2

Fusion genes: KHDRBS1-JAK2, PCM1-JAK2, TFG-JAK2

Self-oligo/dimerization MYC fusions PTPRC, SH2B3 Yes Unknown Yes Potential therapeutic target with JAK inhibitors.[9][10][11]

Epigenomic Alterations

Unknown

Genes and Main Pathways Involved

Gene; Genetic Alteration Pathway Pathophysiologic Outcome
JAK2;Fusion with KHDRBS1, PCM1, TFG JAK-STAT signaling Upregulation leads to cytokine-independent activation.
SH2B3;Deletion JAK-STAT negative regulation Loss leads to hyperactivation of JAK2 signaling.[11]

Genetic Diagnostic Testing Methods

JAK2 by Next-generation sequencing (NGS). SH2B3 by PCR or FISH.[11]

Familial Forms

Unknown

Additional Information

PCAETL has an aggressive progression, with a median survival time of 12 months. The prognosis is similar regardless of whether the morphology is small or large cell, or whether the lesions are localized or diffuse.[2]

Links

Put your text placeholder here (or anywhere appropriate on the page) and use the "Link" icon at the top of the page (Instructions: Once you have a text placeholder entered to which you want to add a link, highlight that text, select the "Link" icon at the top of the page, and search the name of the internal page to which you want to link this text, or enter an external internet address including the "http://www." portion.)

References

(use the "Cite" icon at the top of the page) (Instructions: Add each reference into the text above by clicking on where you want to insert the reference, selecting the “Cite” icon at the top of the page, and using the “Automatic” tab option to search such as by PMID to select the reference to insert. The reference list in this section will be automatically generated and sorted. If a PMID is not available, such as for a book, please use the “Cite” icon, select “Manual” and then “Basic Form”, and include the entire reference.)

  1. 1.0 1.1 1.2 1.3 Berti, E.; et al. (1999-08). "Primary cutaneous CD8-positive epidermotropic cytotoxic T cell lymphomas. A distinct clinicopathological entity with an aggressive clinical behavior". The American Journal of Pathology. 155 (2): 483–492. doi:10.1016/S0002-9440(10)65144-9. ISSN 0002-9440. PMC 1866866. PMID 10433941. Check date values in: |date= (help)
  2. 2.0 2.1 2.2 2.3 Guitart, Joan; et al. (2017-05). "Primary cutaneous aggressive epidermotropic cytotoxic T-cell lymphomas: reappraisal of a provisional entity in the 2016 WHO classification of cutaneous lymphomas". Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc. 30 (5): 761–772. doi:10.1038/modpathol.2016.240. ISSN 1530-0285. PMC 5413429. PMID 28128277. Check date values in: |date= (help)
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Robson, Alistair; et al. (2015-10). "Aggressive epidermotropic cutaneous CD8+ lymphoma: a cutaneous lymphoma with distinct clinical and pathological features. Report of an EORTC Cutaneous Lymphoma Task Force Workshop". Histopathology. 67 (4): 425–441. doi:10.1111/his.12371. ISSN 1365-2559. PMID 24438036. Check date values in: |date= (help)
  4. Travassos, Daphine Caxias; et al. (2022-06). "Primary cutaneous CD8+ cytotoxic T-cell lymphoma of the face with intraoral involvement, resulting in facial nerve palsy after chemotherapy". Journal of Cutaneous Pathology. 49 (6): 560–564. doi:10.1111/cup.14199. ISSN 1600-0560. PMID 35001425 Check |pmid= value (help). Check date values in: |date= (help)
  5. Saruta, Hiroshi; et al. (2017-09). "Hematopoietic stem cell transplantation in advanced cutaneous T-cell lymphoma". The Journal of Dermatology. 44 (9): 1038–1042. doi:10.1111/1346-8138.13848. ISSN 1346-8138. PMID 28391645. Check date values in: |date= (help)
  6. 6.0 6.1 Nofal, Ahmad; et al. (2012-10). "Primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma: proposed diagnostic criteria and therapeutic evaluation". Journal of the American Academy of Dermatology. 67 (4): 748–759. doi:10.1016/j.jaad.2011.07.043. ISSN 1097-6787. PMID 22226429. Check date values in: |date= (help)
  7. Deenen, N. J.; et al. (2019-02). "Pitfalls in diagnosing primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma". The British Journal of Dermatology. 180 (2): 411–412. doi:10.1111/bjd.17252. ISSN 1365-2133. PMID 30259963. Check date values in: |date= (help)
  8. Willemze, Rein; et al. (2005-05-15). "WHO-EORTC classification for cutaneous lymphomas". Blood. 105 (10): 3768–3785. doi:10.1182/blood-2004-09-3502. ISSN 0006-4971. PMID 15692063.
  9. 9.0 9.1 9.2 9.3 9.4 Lee, Katie; et al. (2021-12-09). "Primary cytotoxic T-cell lymphomas harbor recurrent targetable alterations in the JAK-STAT pathway". Blood. 138 (23): 2435–2440. doi:10.1182/blood.2021012536. ISSN 1528-0020. PMC 8662071 Check |pmc= value (help). PMID 34432866 Check |pmid= value (help).
  10. 10.0 10.1 10.2 10.3 10.4 10.5 Fanoni, Daniele; et al. (2018-12). "Array-based CGH of primary cutaneous CD8+ aggressive EPIDERMO-tropic cytotoxic T-cell lymphoma". Genes, Chromosomes & Cancer. 57 (12): 622–629. doi:10.1002/gcc.22673. ISSN 1098-2264. PMID 30307677. Check date values in: |date= (help)
  11. 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 Bastidas Torres, Armando N.; et al. (2022-03-01). "Deregulation of JAK2 signaling underlies primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma". Haematologica. 107 (3): 702–714. doi:10.3324/haematol.2020.274506. ISSN 1592-8721. PMC 8883537 Check |pmc= value (help). PMID 33792220 Check |pmid= value (help).

EXAMPLE Book

  1. Arber DA, et al., (2017). Acute myeloid leukaemia with recurrent genetic abnormalities, in World Health Organization Classification of Tumours of Haematopoietic and Lymphoid Tissues, Revised 4th edition. Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J, Arber DA, Hasserjian RP, Le Beau MM, Orazi A, and Siebert R, Editors. IARC Press: Lyon, France, p129-171.

Notes

*Primary authors will typically be those that initially create and complete the content of a page.  If a subsequent user modifies the content and feels the effort put forth is of high enough significance to warrant listing in the authorship section, please contact the CCGA coordinators (contact information provided on the homepage).  Additional global feedback or concerns are also welcome. *Citation of this Page: “Primary cutaneous CD8-positive aggressive epidermotropic cytotoxic T-cell lymphoma”. Compendium of Cancer Genome Aberrations (CCGA), Cancer Genomics Consortium (CGC), updated 07/14/2024, https://ccga.io/index.php/HAEM5:Primary_cutaneous_CD8-positive_aggressive_epidermotropic_cytotoxic_T-cell_lymphoma.