CO2 LASER THERAPY FOR BENIGN SKIN TUMORS AT FACE
T. MoritaRyuzaburo TaninoM. MiyasakaM. NishimuraHirohisa SaitoH. YamaguchiHirotsugu YamadaHiroki AiharaMitsuhiro Osada
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Abstract:
Benign skin tumors such as lentigo, verruca vulgaris, pyogenic granuloma, seborrheic keratosis and others at face are usually treated by excision with scalpel (cold knife) followed by direct closure or open treatment, electrosurgery, cryosurgery and local injection of bleomycin for warts etc. We have investigated the possibility of using CO2 laser for these benign skin tumors, and have obtained favorable results with minimal scarring, due to its hemostatic effect and vaporization of the tumor tissues. Details of the procedure together with the advantages and the disadvantages of CO2 laser therapy as compared with conventional methods will be discussed.Keywords:
Seborrheic keratosis
Electrosurgery
Cryosurgery
Cryotherapy
Skin tumor
Lentigo
Fulguration
Pyogenic granuloma
Benign tumor
Actinic keratosis
Electrocoagulation
The surgical treatment has been considered to be the first choice treatment for seborrheic keratosis and senile lentigo. It is, however, sometimes difficult to excise the big or multiple lesions simply. In these respects, the ruby laser treatment is advantageous, because it damages selectively the melanin pigments in the epidermis. In this study, the efficacy of the ruby laser radiation on seborrheic keratosis and senile lentigo using Toshiba model LRT-301A was determined. Single radiation of 9 or 16 J/cm2 has been performed for treatment of senile lentigo. On the other hand, following removal of the damaged tissue after one shot for the treatment of seborrheic keratosis radiation of 20 J/cm2, the second shot of same dosege was performed.Twenty four cases of senile lentigo were treated and 15 cases (63%) were effective in our method. Twenty two cases (79%) out of 28 cases of seborrheic keratosis were also effective. No ulceration nor scar formation was observed in the patients after the treatment. The results revealed that the ruby laser radiationwas regarded as very safe and adequate treatment for these cutaneous lesions.
Seborrheic keratosis
Lentigo
Lentigo maligna
Ruby laser
Keratosis
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Benign skin tumors such as lentigo, verruca vulgaris, pyogenic granuloma, seborrheic keratosis and others at face are usually treated by excision with scalpel (cold knife) followed by direct closure or open treatment, electrosurgery, cryosurgery and local injection of bleomycin for warts etc. We have investigated the possibility of using CO2 laser for these benign skin tumors, and have obtained favorable results with minimal scarring, due to its hemostatic effect and vaporization of the tumor tissues. Details of the procedure together with the advantages and the disadvantages of CO2 laser therapy as compared with conventional methods will be discussed.
Seborrheic keratosis
Electrosurgery
Cryosurgery
Cryotherapy
Skin tumor
Lentigo
Fulguration
Pyogenic granuloma
Benign tumor
Actinic keratosis
Electrocoagulation
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Citations (0)
On the basis of a study of 54 specimens each of large-cell acanthoma, solar lentigo, reticulated seborrheic keratosis, and lichen planus-like keratosis, it is concluded that clinically, histopathoiogically, and biologically, large-cell acanthoma is a variant of solar lentigo, and solar lentigo (including the large-cell variant) is a stage in the evolution of reticulated seborrheic keratosis and of lichen planus like keratosis.
Lentigo
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Background/Aim: Solar lentigo, seborrheic keratosis, actinic keratosis, lentigo maligna are confusable hyperpigmented lesions. Dermoscopy is an important tool to distinguish the pigmented lesions on the face. This study aimed to determine the reliability of dermoscopy by comparatively analyzing dermoscopic findings with the histopathologic examination of facial hyperpigmented flat lesions. Methods: Patients with hyperpigmented flat lesions on the face such as solar lentigo, seborrheic keratosis, and actinic keratosis were included in this retrospective cohort study. Those with other causes of facial hyperpigmentation were excluded from the study, based on history, clinical evaluation, Wood's lamp examination, and dermoscopic findings. The dermoscopic criteria form, prepared for solar lentigo, seborrheic keratosis, actinic keratosis, and lentigo maligna were filled out. Biopsy was taken for histopathologic evaluation. Results: Fifty-one patients, 26 males, and 25 females, with 53 skin lesions were evaluated. We did not statistically evaluate 3 lesions that had a histopathologic diagnosis of actinic keratosis + solar lentigo. The other 50 lesions’ histopathologic diagnoses were actinic keratosis in 32 lesions, seborrheic keratosis in 9, and solar lentigo in 9. Kappa test was used for statistical analysis, which revealed a value of 0.645 (P
Seborrheic keratosis
Actinic keratosis
Lentigo
Lentigo maligna
Keratosis
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Objective To observe the clinical effects and safety of Q-switched Nd ∶ YAG laser in the treatment of pigmentary skin diseases. Methods A Total of 1 051 patients with pigmentary dermatosis were treated by Q-switched Nd ∶ YAG laser,including 365 cases of nevus of ota,103 of freckles,106 of care-au-lait spots,43 of naevus fusco-caerulens zygomaticus,37 of lentigo,128 of tattoo,57 of accidental tatoo,96 of nevus spilus,and 116 of keratosis seborrheica. Results The nevus of ota,freckles,and seborrheic keratosis were cured with 100% of effective rate.And naevus fusco-caeruleus zygomaticus,tattoos,and injuried tattoos were achieved good therapeutic effect with 90% above of effective rate.The 63.2%,51.4% and 45.8% of effective rate were obtained in care-au-lait spots,lentigo,and naevus spilus patients,respectively. Conclusions Q-switched Nd ∶ YAG laser is effective in the treatment of nevus of Ota,freckles,seborrheic keratosis,naevus fusco-caeruleus zygomaticus and tattoos.But it has limited efficacy for care-au-lait spots,lentigo and naevus.
Lentigo
Seborrheic keratosis
Nevus of Ota
Intense pulsed light
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LeserTrlat syndrome is characterized by the sudden appearance of a large amount of elements of seborrheic keratosis. The syndrome is associated with the development of malignant tumors of internal organs. The reason for the development of the syndrome is probably the production of cytokines by cells of malignant tumors of internal organs (transforming growth factor alpha (TGF-), epidermal growth factor (EGF), etc.) endogenous mediators that affect the proliferation of keratinocytes and cause rapid growth of seborrheic keratosis. Currently, the question of the paraneoplastic nature of multiple seborrheic keratosis remains open. The article presents the observation of an 82-year-old patient with lentigo-melanoma, who developed multiple elements of seborrheic keratosis within a short time, discusses the question of how in this case it is possible to consider this as a paraneoplastic process. This case is interesting for the atypical clinical picture of seborrheic keratosis and the association with lentigo-melanoma.
Seborrheic keratosis
Lentigo
Actinic keratosis
Keratosis
Lentigo maligna
Lentigo maligna melanoma
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ABSTRACT Lentigo maligna (LM) is a melanocytic neoplasm that occurs on chronically sun-exposed skin commonly affecting middle-aged and elderly patients, which can progress to LM melanoma if left untreated or misdiagnosed. LM can be confused with other dermatologic conditions such as pigmented actinic keratosis, solar lentigo, and seborrheic keratosis. Therefore, clinicians should know the various clinical features that can distinguish LM from other differential diagnoses. Although multiple treatment modalities exist for LM, surgical excision remains the gold standard for the treatment of LM and results in an excellent prognosis for treated patients. This article discusses the pathogenesis, diagnosis, and treatment of LM so that dermatology nurses are better prepared to care for patients with LM.
Seborrheic keratosis
Lentigo
Actinic keratosis
Lentigo maligna melanoma
Lentigo maligna
Treatment modality
Therapeutic modalities
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Two cases of spreading pigmented actinic keratosis are reported. In case number one, an invasive, pigmented squamous cell carcinoma developed in the lesion. Clinicopathologic features include size greater than normal, lateral spread of the lesion, and presence of melanin in dysplastic epidermal cells, dendritic melanocytes and dermal melanophages. Differential diagnosis to be considered includes lentigo maligna, lentigo maligna melanoma and seborrheic keratosis.
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Actinic keratosis
Lentigo
Lentigo maligna
Lentigo maligna melanoma
Keratosis
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Lentigo maligna melanoma
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