List of works - Hiroshi Koga

5-Hydroxymethylcytosine as a useful marker to differentiate between malignant melanomas and benign melanocytic nevi

scientific article published on 10 October 2013

Accuracy in melanoma detection: a 10-year multicenter survey.

scientific article

Age-Related Prevalence of Dermoscopic Patterns in Acquired Melanocytic Nevus on Acral Volar Skin ⬇️

scientific article published on August 1, 2013

Alteration of dermoscopic features in a juvenile xanthogranuloma during follow-up of 43 months

scientific article published on 30 September 2014

Anatomic transitions and the histopathologic features of melanocytic nevi

scientific article published on 01 September 2008

Anatomical and histopathological correlates of the dermoscopic patterns seen in melanocytic nevi on the sole: a retrospective study.

scientific article published in August 2005

Assessment of BRAF and KIT mutations in Japanese melanoma patients.

scientific article

Automated evaluation system of dermoscopic images of longitudinal melanonychia: proposition of a discrimination index for detecting early nail apparatus melanoma.

scientific article published on 9 September 2014

Brown nodule on the lower eyelid: a quiz -- lichenoid keratosis.

scientific article

Case of a cutaneous angiomyolipoma in the ear

scientific article published on 14 December 2011

Characteristic Distribution of Melanin Columns in the Cornified Layer of Acquired Acral Nevus: An Important Clue for Histopathologic Differentiation From Early Acral Melanoma ⬇️

scientific article published on 01 July 2011

Clinical and Histopathologic Characteristics of Melanocytic Lesions on the Volar Skin Without Typical Dermoscopic Patterns

scientific article published on 01 May 2019

Computer-based classification of dermoscopy images of melanocytic lesions on acral volar skin.

scientific article published on 6 March 2008

Dermoscopic and histopathological findings of polymorphous vessels in amelanotic cutaneous metastasis of pigmented cutaneous melanoma

scientific article published on 19 March 2009

Dermoscopic characteristics of acquired melanocytic naevus in childhood affecting the acral region

scientific article published on 01 November 2013

Dermoscopic characteristics of congenital melanocytic nevi affecting acral volar skin.

scientific article published in July 2011

Dermoscopic diagnostic performance of Japanese dermatologists for skin tumors differs by patient origin: A deep learning convolutional neural network closes the gap

scientific article published on 15 October 2020

Dermoscopic evaluation of melanonychia.

scientific article

Dermoscopic features of nonpigmented eccrine poromas in association with their histopathological features ⬇️

scientific article published on November 4, 2010

Dermoscopic patterns of acral melanocytic nevi: their variations, changes, and significance.

scientific article published in November 2007

Dermoscopy image-based self-learning on computer improves diagnostic performance of medical students compared with classroom-style lecture in ultra-short period

scientific article published on 04 September 2020

Dermoscopy of pigmented poromas.

scientific article published on 28 May 2010

Dermoscopy of white fibrous papulosis of the neck

scientific article published on 01 February 2010

Early acral melanoma in situ: correlation between the parallel ridge pattern on dermoscopy and microscopic features.

scientific article published in February 2006

Eccrine porocarcinoma shares dermoscopic characteristics with eccrine poroma: A report of three cases and review of the published work

scientific article published on September 2015

Eccrine porocarcinoma: clinical and pathological studies of 12 cases

scientific article published on 01 August 2007

Efficacy and safety of nivolumab in combination with ipilimumab in Japanese patients with advanced melanoma: An open-label, single-arm, multicentre phase II study

scientific article published on 15 November 2018

Efficacy and toxicity of ipilimumab used after nivolumab in patients with melanoma

scientific article published on 14 April 2018

Final analysis of a phase II study of nivolumab in combination with ipilimumab for unresectable chemotherapy-naive advanced melanoma

scientific article published on 18 August 2020

Generalised acanthosis nigricans in childhood with short stature associated with poor response to growth hormone provocation

scientific article published on 01 July 2014

Guidelines for the management of cutaneous lymphomas (2011): a consensus statement by the Japanese Skin Cancer Society - Lymphoma Study Group.

scientific article published on 20 August 2012

Herpes zoster histopathologically mimicking CD30-positive anaplastic large cell lymphoma

scientific article published on 27 August 2008

Histopathological correlation to the dermoscopic feature of "string of pearls" in clear cell acanthoma.

scientific article published in July 2014

Histopathological improvement of scleroderma induced by paclitaxel in a patient with breast cancer

scientific article published on 29 August 2015

Hyperspectroscopic screening of melanoma on acral volar skin ⬇️

scientific article published on June 14, 2012

Japanese Dermatological Association Guidelines: Outlines of guidelines for cutaneous melanoma 2019

scientific article published on 28 November 2019

Japanese real-world study of sequential nivolumab and ipilimumab treament in melanoma

scientific article published on 17 September 2019

Key point in dermoscopic differentiation between early nail apparatus melanoma and benign longitudinal melanonychia

scientific article published on 01 January 2011

Key points in dermoscopic differentiation between early acral melanoma and acral nevus ⬇️

scientific article published on January 1, 2011

Leg ulcers associated with positive lupus anticoagulant in two cases of Klinefelter's syndrome

scientific article published on 01 January 2011

Long-term Follow-up of Longitudinal Melanonychia in Children and Adolescents Using an Objective Discrimination Index.

scientific article published in June 2016

Melanocytic naevus shows parallel ridge pattern due to the melanin columns under the ridges

scientific article published on 01 January 2015

Modification of a melanoma discrimination index derived from hyperspectral data: a clinical trial conducted in 2 centers between March 2011 and December 2013.

scientific article

Multiple hypersonographic spots in basal cell carcinoma.

scientific article published on October 2007

NRAS mutations in primary and metastatic melanomas of Japanese patients.

scientific article published on 6 June 2013

Nail apparatus melanoma thickness is associated with side and age.

scientific article published on 24 January 2017

Outlines of the Japanese guidelines for the management of primary cutaneous lymphomas 2020

scientific article published on 27 November 2020

Pigmented macule on the nipple.

scientific article published on 26 March 2015

Pigmented seborrheic keratosis showing starburst pattern

scientific article published in July 2016

Revised 3-step dermoscopic algorithm for the management of acral melanocytic lesions.

scientific article

Serum 5-S -cysteinyldopa behavior in the early phase of nivolumab treatment of 12 melanoma patients

scientific article published on 25 August 2018

Successful treatment of rheumatoid vasculitis-associated skin ulcer with a TNF-α antagonist.

scientific article

Surgical treatment of nail apparatus melanoma in situ: the use of artificial dermis in reconstruction

scientific article published on 11 November 2011

The BRAAFF checklist: a new dermoscopic algorithm for diagnosing acral melanoma.

scientific article published on 25 July 2015

The whiteboard marker as a useful tool for the dermoscopic "furrow ink test"

scientific article published on 01 November 2009

Usefulness of high-frequency sonography for the diagnosis of asymptomatic myopathy in Löfgren's syndrome.

scientific article

Vascular structure absence under dermoscopy in two cases of angiosarcoma on the scalp

scientific article published on 06 March 2014

List of works by Hiroshi Koga

5-Hydroxymethylcytosine as a useful marker to differentiate between malignant melanomas and benign melanocytic nevi

Accuracy in melanoma detection: a 10-year multicenter survey.

Age-Related Prevalence of Dermoscopic Patterns in Acquired Melanocytic Nevus on Acral Volar Skin ⬇️

Alteration of dermoscopic features in a juvenile xanthogranuloma during follow-up of 43 months

Anatomic transitions and the histopathologic features of melanocytic nevi

Anatomical and histopathological correlates of the dermoscopic patterns seen in melanocytic nevi on the sole: a retrospective study.

Assessment of BRAF and KIT mutations in Japanese melanoma patients.

Automated evaluation system of dermoscopic images of longitudinal melanonychia: proposition of a discrimination index for detecting early nail apparatus melanoma.

Brown nodule on the lower eyelid: a quiz -- lichenoid keratosis.

Case of a cutaneous angiomyolipoma in the ear

Characteristic Distribution of Melanin Columns in the Cornified Layer of Acquired Acral Nevus: An Important Clue for Histopathologic Differentiation From Early Acral Melanoma ⬇️

Clinical and Histopathologic Characteristics of Melanocytic Lesions on the Volar Skin Without Typical Dermoscopic Patterns

Computer-based classification of dermoscopy images of melanocytic lesions on acral volar skin.

Dermoscopic and histopathological findings of polymorphous vessels in amelanotic cutaneous metastasis of pigmented cutaneous melanoma

Dermoscopic characteristics of acquired melanocytic naevus in childhood affecting the acral region

Dermoscopic characteristics of congenital melanocytic nevi affecting acral volar skin.

Dermoscopic diagnostic performance of Japanese dermatologists for skin tumors differs by patient origin: A deep learning convolutional neural network closes the gap

Dermoscopic evaluation of melanonychia.

Dermoscopic features of nonpigmented eccrine poromas in association with their histopathological features ⬇️

Dermoscopic patterns of acral melanocytic nevi: their variations, changes, and significance.

Dermoscopy image-based self-learning on computer improves diagnostic performance of medical students compared with classroom-style lecture in ultra-short period

Dermoscopy of pigmented poromas.

Dermoscopy of white fibrous papulosis of the neck

Early acral melanoma in situ: correlation between the parallel ridge pattern on dermoscopy and microscopic features.

Eccrine porocarcinoma shares dermoscopic characteristics with eccrine poroma: A report of three cases and review of the published work

Eccrine porocarcinoma: clinical and pathological studies of 12 cases

Efficacy and safety of nivolumab in combination with ipilimumab in Japanese patients with advanced melanoma: An open-label, single-arm, multicentre phase II study

Efficacy and toxicity of ipilimumab used after nivolumab in patients with melanoma

Final analysis of a phase II study of nivolumab in combination with ipilimumab for unresectable chemotherapy-naive advanced melanoma

Generalised acanthosis nigricans in childhood with short stature associated with poor response to growth hormone provocation

Guidelines for the management of cutaneous lymphomas (2011): a consensus statement by the Japanese Skin Cancer Society - Lymphoma Study Group.

Herpes zoster histopathologically mimicking CD30-positive anaplastic large cell lymphoma

Histopathological correlation to the dermoscopic feature of "string of pearls" in clear cell acanthoma.

Histopathological improvement of scleroderma induced by paclitaxel in a patient with breast cancer

Hyperspectroscopic screening of melanoma on acral volar skin ⬇️

Japanese Dermatological Association Guidelines: Outlines of guidelines for cutaneous melanoma 2019

Japanese real-world study of sequential nivolumab and ipilimumab treament in melanoma

Key point in dermoscopic differentiation between early nail apparatus melanoma and benign longitudinal melanonychia

Key points in dermoscopic differentiation between early acral melanoma and acral nevus ⬇️

Leg ulcers associated with positive lupus anticoagulant in two cases of Klinefelter's syndrome

Long-term Follow-up of Longitudinal Melanonychia in Children and Adolescents Using an Objective Discrimination Index.

Melanocytic naevus shows parallel ridge pattern due to the melanin columns under the ridges

Modification of a melanoma discrimination index derived from hyperspectral data: a clinical trial conducted in 2 centers between March 2011 and December 2013.

Multiple hypersonographic spots in basal cell carcinoma.

NRAS mutations in primary and metastatic melanomas of Japanese patients.

Nail apparatus melanoma thickness is associated with side and age.

Outlines of the Japanese guidelines for the management of primary cutaneous lymphomas 2020

Pigmented macule on the nipple.

Pigmented seborrheic keratosis showing starburst pattern

Revised 3-step dermoscopic algorithm for the management of acral melanocytic lesions.

Serum 5-S -cysteinyldopa behavior in the early phase of nivolumab treatment of 12 melanoma patients

Successful treatment of rheumatoid vasculitis-associated skin ulcer with a TNF-α antagonist.

Surgical treatment of nail apparatus melanoma in situ: the use of artificial dermis in reconstruction

The BRAAFF checklist: a new dermoscopic algorithm for diagnosing acral melanoma.

The whiteboard marker as a useful tool for the dermoscopic "furrow ink test"

Usefulness of high-frequency sonography for the diagnosis of asymptomatic myopathy in Löfgren's syndrome.

Vascular structure absence under dermoscopy in two cases of angiosarcoma on the scalp