Targetoid hemosiderotic hemangioma
Alerts and Notices
Synopsis

THH is a rare finding that tends to appear in young or middle-aged individuals. It has a predilection for the trunk and/or extremities. No definitive risk factors exist, although it is speculated that trauma may play a role in the development and flaring of these lesions.
Codes
ICD10CM:D18.01 – Hemangioma of skin and subcutaneous tissue
SNOMEDCT:
254790003 – Targetoid hemosiderotic hemangioma
Look For
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- Hemangioma
- Erythema migrans
- Erythema multiforme
- Angiokeratoma
- Reactive angioendotheliomatosis
- Sclerosing hemangioma
- Solitary mastocytoma
- Glomus tumor
- Glomeruloid hemangioma
- Arthropod bite
- Kaposi sarcoma (see AIDS-associated Kaposi sarcoma, non-AIDS-associated Kaposi sarcoma)
- Angiosarcoma
- Other malignant vascular neoplasm, eg, kaposiform hemangioendothelioma
- Atypical nevus
- Melanoma
Best Tests
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Management Pearls
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Therapy
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References
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Last Reviewed:12/25/2021
Last Updated:01/17/2022
Last Updated:01/17/2022