Dermatologic Disorders

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An Atlas of Lumps and Bumps
Photo Essay

Photo Essay

Photo Essay
In the pediatric age group, popliteal cysts are the most common lesion behind the knee
Photo Essay
An Atlas of Lumps and Bumps, Part 47: Popliteal Cyst
02/14/2025
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Kin Fon Leong, MD
A popliteal cyst, also known as a Baker cyst or parameniscal cyst, forms when the synovial fluid from the knee joint fills and distends a preexisting gastrocnemius-semimembranosus bursa in the popliteal...
02/14/2025
Photo Essay
In the pediatric age group, popliteal cysts are the most common lesion behind the knee
Photo Essay
An Atlas of Lumps and Bumps, Part 47: Popliteal Cyst
02/14/2025
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Kin Fon Leong, MD
A popliteal cyst, also known as a Baker cyst or parameniscal cyst, forms when the synovial fluid from the knee joint fills and distends a preexisting gastrocnemius-semimembranosus bursa in the popliteal...
02/14/2025
Photo Essay
The most common sites of ganglion cysts include the dorsum of the wrist
Photo Essay
An Atlas of Lumps and Bumps, Part 46: Ganglion Cysts
01/06/2025
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Alex H.C. Wong, MD; Kin Fon Leong, MD
A ganglion cyst is a benign cystic swelling that typically arises from the synovium of either a tendon sheath or a joint capsule.
01/06/2025
Photo Essay
The most common sites of ganglion cysts include the dorsum of the wrist
Photo Essay
An Atlas of Lumps and Bumps, Part 46: Ganglion Cysts
01/06/2025
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Alex H.C. Wong, MD; Kin Fon Leong, MD
A ganglion cyst is a benign cystic swelling that typically arises from the synovium of either a tendon sheath or a joint capsule.
01/06/2025
Photo Essay
The most common sites of ganglion cysts include the dorsum of the wrist
Photo Essay
An Atlas of Lumps and Bumps, Part 46: Ganglion Cysts
01/06/2025
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Alex H.C. Wong, MD; Kin Fon Leong, MD
A ganglion cyst is a benign cystic swelling that typically arises from the synovium of either a tendon sheath or a joint capsule.
01/06/2025
Photo Essay
Woman with DPN
Photo Essay
An Atlas of Lumps and Bumps, Part 44: Dermatosis Papulosa Nigra
12/23/2024
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Kin Fon Leong, MD
Dermatosis papulosa nigra is a common, benign epidermal growth characterized by the presence of multiple, asymptomatic, hyperpigmented, round, dome-shaped or flat, papules or macules localized predominately...
12/23/2024
Photo Essay
Woman with DPN
Photo Essay
An Atlas of Lumps and Bumps, Part 44: Dermatosis Papulosa Nigra
12/23/2024
Alexander K.C. Leung, MD, MBBS, FRCPC, FRCP; Benjamin Barankin, MD, FRCPC; Joseph M. Lam, MD; Kin Fon Leong, MD
Dermatosis papulosa nigra is a common, benign epidermal growth characterized by the presence of multiple, asymptomatic, hyperpigmented, round, dome-shaped or flat, papules or macules localized predominately...
12/23/2024
Photo Essay
photo essay
Photo Essay
An Atlas of Lumps and Bumps, Part 31: Juvenile Xanthogranuloma
10/19/2024

Alexander K.C. Leung, MD1,2, Benjamin Barankin, MD3, Joseph M. Lam, MD4, Kin Fon Leong, MD5

Alexander K.C. Leung, MD1,2, Benjamin...
This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 31, Leung and colleagues describe juvenile xanthogranuloma. To access previously published articles in...
10/19/2024
Photo Essay
photo essay
Photo Essay
An Atlas of Lumps and Bumps, Part 31: Juvenile Xanthogranuloma
10/19/2024

Alexander K.C. Leung, MD1,2, Benjamin Barankin, MD3, Joseph M. Lam, MD4, Kin Fon Leong, MD5

Alexander K.C. Leung, MD1,2, Benjamin...
This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 31, Leung and colleagues describe juvenile xanthogranuloma. To access previously published articles in...
10/19/2024
Photo Essay
photo essay
Photo Essay
An Atlas of Lumps and Bumps, Part 31: Juvenile Xanthogranuloma
10/19/2024

Alexander K.C. Leung, MD1,2, Benjamin Barankin, MD3, Joseph M. Lam, MD4, Kin Fon Leong, MD5

Alexander K.C. Leung, MD1,2, Benjamin...
This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 31, Leung and colleagues describe juvenile xanthogranuloma. To access previously published articles in...
10/19/2024