Dermatology · Benign Vascular Neoplasms
The facts most likely to be tested
Cherry angiomas are the most common benign vascular tumors of the skin, typically appearing as bright red to purple papules.
These lesions are composed of proliferating capillaries and post-capillary venules within the papillary dermis.
The clinical presentation involves multiple, small, dome-shaped papules that are most frequently distributed on the trunk.
Cherry angiomas are age-related and typically increase in both size and number as patients enter middle age and beyond.
These lesions are asymptomatic and do not require treatment unless they are cosmetically bothersome or subject to frequent trauma and bleeding.
The diagnosis is clinical, and biopsy is rarely indicated unless the lesion exhibits atypical features such as rapid growth, ulceration, or irregular borders.
If removal is requested, electrodessication, shave excision, or pulsed-dye laser therapy are the preferred modalities.
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A 58-year-old male presents for an annual physical examination. He reports no new symptoms but is concerned about several small, bright red, dome-shaped papules on his chest and abdomen that have appeared over the last few years. He denies any pain, pruritus, or bleeding from the lesions. Physical examination reveals multiple 1-3 mm cherry-red, non-blanching papules scattered across the trunk. The remainder of the skin exam is unremarkable, and there are no signs of systemic illness.
What is the most appropriate next step in management?
Reassurance and observation
The patient's presentation is classic for cherry angiomas, which are benign, age-related vascular lesions that require no further diagnostic workup or treatment.
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Etiology / Epidemiology
Common benign vascular neoplasm occurring in middle-aged to older adults; prevalence increases with age.
Clinical Manifestations
Small, bright red to purple papules; Campbell de Morgan spots that blanch with pressure.
Diagnosis
Primarily clinical diagnosis; excisional biopsy if malignancy is suspected.
Treatment
None required; electrocautery or laser therapy for cosmetic concerns.
Prognosis
Completely benign; no malignant potential.
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Epidemiology & Etiology
These lesions are the most common cutaneous vascular proliferations, appearing in nearly all individuals by age 70. While etiology is idiopathic, they are strongly associated with advancing age. No specific genetic or environmental triggers are required for development.
Pertinent Anatomy
Lesions arise from the papillary dermis. They represent a proliferation of dilated capillaries and post-capillary venules.
Pathophysiology
The process involves localized senescent endothelial cell proliferation. These vessels become ectatic and thin-walled, leading to the characteristic red appearance. There is no evidence of systemic vascular disease or underlying coagulopathy.
Clinical Manifestations
Patients present with asymptomatic, dome-shaped, bright red papules ranging from 1-5 mm. They are classically referred to as Campbell de Morgan spots. Lesions blanch with diascopy, distinguishing them from petechiae or purpura. Rapid eruption of hundreds of lesions may rarely signal an underlying internal malignancy, known as the Leser-Trélat sign.
Diagnosis
Diagnosis is clinical based on morphology and blanching. If the lesion is atypical, irregular, or bleeds easily, shave or excisional biopsy is required to rule out amelanotic melanoma. Histopathology reveals a collection of dilated, thin-walled capillaries.
Treatment
No treatment is medically necessary as they are benign. For cosmetic removal, electrocautery, cryotherapy, or pulsed-dye laser are effective. Avoid surgical excision unless malignancy is suspected, as it leaves unnecessary scarring.
Prognosis
The prognosis is excellent as they are benign. They do not regress spontaneously and may increase in number over time. No routine monitoring is required.
Differential Diagnosis
Amelanotic melanoma: irregular borders and asymmetry
Pyogenic granuloma: history of trauma and rapid growth
Petechiae: do not blanch with pressure
Angiokeratoma: darker, hyperkeratotic surface
Spider angioma: central arteriole with radiating branches