PTCH1 germline pathogenic variant
Deterministic view of the source YAML entity. Clinical authority remains with the cited source IDs and reviewer sign-off state.
| ID | BIO-PTCH1-GERMLINE |
|---|---|
| Type | Biomarker |
| Aliases | PTCH1 germline патогенний варіант |
| Status | reviewed 2026-05-18 | pending_clinical_signoff |
| Diseases | DIS-BCC |
| Sources | SRC-NCCN-SKIN-2025 |
Biomarker Facts
| Biomarker type | gene_mutation |
|---|---|
| Mutation details | {"functional_impact": "loss_of_function", "gene": "PTCH1", "gene_hugo_id": "HGNC:9585", "variant_type": "missense_or_truncating"} |
| Related biomarkers | BIO-PTCH1 |
Notes
PTCH1 germline — drives Gorlin / Nevoid Basal Cell Carcinoma Syndrome (NBCCS). Hedgehog-pathway dysregulation. Hallmarks: multiple BCCs (often early-onset, sun-protected areas), odontogenic keratocysts of jaw, palmar/plantar pits, macrocephaly, calcified falx cerebri, skeletal anomalies (bifid ribs), childhood medulloblastoma (SHH-subtype, ~5%). AVOID therapeutic radiation when feasible — radiation drives BCC formation. Smoothened inhibitors (vismodegib, sonidegib) for advanced BCC. STUB pending two-Co-Lead signoff.
Used By
Actionability
BMA-PTCH1-GERMLINE-NBCCS-GORLIN- PTCH1 germline pathogenic variants cause Nevoid Basal Cell Carcinoma Syndrome (NBCCS / Go...