Anaplastic Large Cell Lymphoma Curation Notes
Modeling Decision
This curation follows the cancer modeling guidance from dismech issue #1198 and
the Wilms tumor pattern:
- The dismech page is the disease-level mechanism graph for ALCL, not a one-page-per-ontology-subclass expansion.
disease_termstays MONDO-first atMONDO:0020325(anaplastic large cell lymphoma).- Major ALCL entities are represented as flat subtype facets under one page:
- Systemic ALK-positive
- Systemic ALK-negative
- Primary cutaneous
- Breast implant-associated
- Genetic subgroups such as
DUSP22-rearranged andTP63-rearranged ALK-negative ALCL are modeled as mechanism/genetic facts inside the unified disease page, not as separate dismech pages. - Current schema only provides
Subtype.subtype_termas a MONDO-grounded slot and does not expose a disease-levelncit_mappingsslot. Because of that, NCIT grounding was carried through histopathology findings, biomarkers, and treatment regimens/agents rather than by inventing non-schema subtype mapping structures.
Ontology Anchors
Disease
- MONDO disease anchor:
MONDO:0020325anaplastic large cell lymphoma - NCIT companion cancer concept:
NCIT:C3720Anaplastic Large Cell Lymphoma
MONDO subtype anchors used in YAML
MONDO:0017602ALK-positive anaplastic large cell lymphomaMONDO:0017603ALK-negative anaplastic large cell lymphomaMONDO:0017598primary cutaneous anaplastic large cell lymphomaMONDO:0850112breast implant-associated anaplastic large cell lymphoma
NCIT companion subtype concepts used in interpretation
NCIT:C37195Systemic Anaplastic Large Cell Lymphoma, ALK-PositiveNCIT:C37196Systemic Anaplastic Large Cell Lymphoma, ALK-NegativeNCIT:C6860Primary Cutaneous Anaplastic Large Cell LymphomaNCIT:C139012Breast Implant-Associated Anaplastic Large Cell Lymphoma
Histopathology / biomarker / treatment grounding
NCIT:C39679Hallmark CellNCIT:C193484CD30 Antigen [Presence] in Tissue by Immune StainNCIT:C38906Tumor Necrosis Factor Receptor Superfamily Member 8NCIT:C81946ALK Fusion Protein ExpressionNCIT:C66944Brentuximab VedotinNCIT:C159558CHP-Brentuximab Vedotin RegimenNCIT:C160013Crizotinib Regimen
PMID-Backed Evidence Used
Disease framing and subtype axes
PMID:40565334- Quote:
Anaplastic Large Cell Lymphoma (ALCL) represents a diverse group of mature T-Cell Lymphomas unified by strong CD30 expression but with different molecular and clinical subtypes. - Use: disease-level definition and justification for one unified ALCL page.
PMID:40565334- Quote:
ALCL comprises four major entities: systemic ALK-positive ALCL, systemic ALK-negative ALCL, Breast Implant-Associated ALCL (BIA-ALCL), and primary cutaneous ALCL. - Use: flat subtype facet structure.
PMID:24894770- Quote:
Thus, ALK-negative ALCL is a genetically heterogeneous disease with widely disparate outcomes following standard therapy. - Use: ALK-negative modeled as one subtype with internal genetic heterogeneity, not split into multiple pages.
Histopathology and diagnosis
PMID:28975123- Quote:
Histologically, all the subtypes showed pleomorphic and "hallmark" cells with strong CD30 expression and variable loss of T-cell antigens. - Use: hallmark-cell histopathology and diffuse CD30-positive tissue phenotype.
PMID:28975123- Quote:
Diagnosis of ALCL is based on recognizing the key morphological features, especially the presence of "hallmark" cells. - Use: diagnostic emphasis on morphology.
PMID:28975123- Quote:
The inclusion of CD30 in the initial IHC panel will help identify LCA negative cases and avoid misdiagnosis. - Use: diagnostic workflow and IHC panel design.
PMID:35941721- Quote:
Together with previous data, these findings support a 4-marker immunohistochemistry algorithm using ALK, LEF1, TIA1, and p63 for genetic subtyping of ALCL. - Use: ancillary subtype-specific diagnostic testing.
Mechanism notes kept atomic in YAML
PMID:29617304- Quote:
ALK is rearranged in approximately 80% of systemic ALCL cases with one of its partner genes, most commonly NPM1 - Use: discrete
ALK Fusion Oncogene Formationnode. PMID:11850821- Quote:
We show here that expression of activated ALK induces the constitutive phosphorylation of Stat3 in transfected cells as well as in primary human ALCLs. - Use: separate
ALK-Driven STAT3 Activationnode. PMID:11850821- Quote:
These studies support a pathogenic mechanism whereby stimulation of anti-apoptotic signals through activation of Stat3 contributes to the successful outgrowth of ALK positive tumor cells. - Use: separate
BCL2L1-Mediated Apoptosis Resistancenode. PMID:19088198- Quote:
NPM/ALK induces CD274 expression by activating its key signal transmitter, transcription factor STAT3. - Use: separate
PD-L1-Mediated Immune Evasionnode. PMID:34572893- Quote:
Additionally, systemic ALK- ALCL-apart from DUSP22-rearranged cases-harbors JAK1 and/or STAT3 mutations that result in the activation of the JAK/STAT signaling pathway. - Use: subtype-scoped
JAK/STAT3 Pathway Alteration in ALK-Negative ALCL. PMID:34382383- Quote:
Consistent with the genomic data, transcriptome analysis uncovered upregulation of signal transduction routes associated with the PI-3-K, MAPK and G-protein pathways (e.g., ERK, phospholipase C, AKT). - Use: distinct primary-cutaneous signaling node rather than collapsing all non-ALK biology together.
Phenotypes and treatment
PMID:37655119- Quote:
This lymphoma has a median age of 34 years, is more common in males, and is in advanced stage at the time of diagnosis in most patients. - Use: advanced-stage presentation phenotype for systemic ALK-positive disease.
PMID:24346900- Quote:
Primary cutaneous anaplastic large-cell lymphoma is part of the spectrum of CD30+ lymphoproliferative cutaneous processes, characterized by single or multifocal nodules that ulcerate, are autoregressive and recurrent. - Use: skin-nodule phenotype for primary cutaneous ALCL.
PMID:38102324- Quote:
Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a subtype of ALCL that arises as a seroma or a mass in the capsule surrounding textured breast implants. - Use: seroma and capsule-mass phenotypes for BIA-ALCL.
PMID:30914464- Quote:
In November 2018, the U.S. Food and Drug Administration (FDA) approved brentuximab vedotin (BV) for the treatment of adult patients with previously untreated systemic anaplastic large cell lymphoma - Use: frontline brentuximab vedotin plus CHP.
PMID:28974506- Quote:
These final results, which demonstrated ... durable remissions in a subset of patients with relapsed or refractory systemic ALCL, provide evidence that single-agent brentuximab vedotin may be a potentially curative treatment option. - Use: relapsed/refractory brentuximab vedotin.
PMID:37549532- Quote:
CONCLUSION: Crizotinib shows efficacy and an acceptable safety profile in ALK+ ALCL relapsed/refractory patients. - Use: targeted ALK inhibition.
PMID:26628470- Quote:
Patients who underwent a complete surgical excision that consisted of total capsulectomy with breast implant removal had better OS (P = .022) and EFS (P = .014) - Use: surgery-first management for BIA-ALCL.
Why Separate Pages Were Not Created
Separate disease files were not created for ALK-positive ALCL, ALK-negative ALCL, primary cutaneous ALCL, or BIA-ALCL because:
- the user explicitly requested application of the
#1198cancer-guideline pattern; - ALCL is represented in current disease ontology usage as one disease family with major subtype entities;
- the important modeling burden here is subtype-scoped mechanism and treatment separation inside one page, not proliferating disease pages; and
- only some branches, especially ALK-positive systemic disease and cutaneous/BIA disease, show clearly different mechanistic programs, which are captured by atomic nodes and subtype-scoped evidence inside the single page.
Cached References Added for This Slice
PMID:40565334PMID:29617304PMID:37655119PMID:24894770PMID:35941721PMID:34382383PMID:34572893PMID:24404580PMID:19088198PMID:11850821PMID:30914464PMID:28974506PMID:37549532PMID:24346900PMID:26628470PMID:38102324