Dermatopathology
Acral angioosteoma cutis
PMID: 20571346
Angiomyxoma, superficial
IHC: CD34
PMID: 34532875
Angiomyxoma, superficial
IHC: CD34
PMID: 34532875
Angiosarcoma
IHC: CD34, ERG, ALK1
Sun-exposed scalp
Angiosarcoma
IHC: ERG
Calcinosis cutis (idiopathic)
Cellular neurothekeoma
IHC: NKI-C3, smooth muscle actin
Cellular neurothekeoma
IHC: MiTF, NKI-C3
PMID: 21389838
Cellular neurothekeoma
IHC: MiTF, NKI-C3
Cellular neurothekeoma
IHC: smooth muscle actin, NKI-C3
Cutaneous melanocytoma
IHC: S100, SOX10
RNA-seq: CRTC1::TRIM11 gene fusion
IHC: CD34
RNA-seq: COL1A1::PDGFB gene fusion
IHC: CD34
RNA-seq: COL1A1::PDGFB gene fusion
IHC: CD34. Melan-A
RNA-seq: COL1A1::PDGFB gene fusion
Dermatomyofibroma
IHC: smooth muscle actin
Fibrous histiocytoma / Dermatofibroma
IHC: Factor XIIIa
Fibrous histiocytoma / Dermatofibroma
IHC: Factor XIIIa, CD34 (NB: peripheral rim enhancement)
IHC: Factor XIIIa, smooth muscle actin
Fibrous histiocytoma, atypical
IHC: Factor XIIIa
Fibrous histiocytoma, cellular
Fibrous histiocytoma, cellular
IHC: Factor XIIIa
Fibrous histiocytoma, cellular
IHC: Factor XIIIa
Fibrous histiocytoma, epithelioid
IHC: ALK
RNA-seq: SQSTM1::ALK gene fusion
Fibrous histiocytoma, epithelioid
IHC: ALK, D2-40
Fibrous histiocytoma, epithelioid
IHC: ALK
RNA-seq: TPM3-ALK gene fusion
Fibrous histiocytoma, epithelioid
IHC: ALK
RNA-seq: EML4::ALK gene fusion
Fibrous histiocytoma, epithelioid
IHC: ALK
RNA-seq: SQSTM1::ALK gene fusion
Fibrous histiocytoma, haemosiderotic
Fibrous histiocytoma, lipidized
IHC: Factor XIIIa
Granular cell tumour
IHC: S100, SOX10, TFE3
IHC: HHV8
IHC: ERG, D2-40, HHV8
Keloid
Leiomyosarcoma / Atypical intradermal smooth muscle neoplasm
IHC: H-caldesmon
PMID: 21358302
Leiomyosarcoma / Atypical intradermal smooth muscle neoplasm
IHC: H-caldesmon
PMID: 21358302
IHC: H-caldesmon
IHC: H-caldesmon
RNA-seq: FUS::CREB3L2 gene fusion
Myoepithelioma, syncytial
IHC: S100, smooth muscle actin, epithelial membrane antigen
RNA-seq: EWSR1::PBX3 gene fusion
Myoepithelioma, syncytial
IHC: S100, ALK, epithelial membrane antigen
RNA-seq: EWSR1::PBX3 gene fusion
RNA-seq: MYH9::USP6 gene fusion
IHC: CD34, S100, SOX10
Plexiform fibrohistiocytic tumour
IHC: NKI-C3
RNA-seq: SERPINE1::FOSB gene fusion
Undifferentiated spindle cell neoplasm
IHC: smooth muscle actin, CD34, ALK1
RNA-seq: KLC1::ALK gene fusion
PMID: 36125853
Undifferentiated spindle cell neoplasm
IHC: CD34, ALK1
RNA-seq: KLC1::ALK gene fusion
PMID: 36125853