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Derm Dx

What Is This Hyperpigmented Scalp Nodule?
Derm Dx
03/11/2021
Figure 1 Case Report A 75-year-old African American woman presented to the clinic with a history of a slowly growing asymptomatic nodule on the right anterior scalp over a few months. Physical exam...
Figure 1 Case Report A 75-year-old African American woman presented to the clinic with a history of a slowly growing asymptomatic nodule on the right anterior scalp over a few months. Physical exam...
...
03/11/2021
The Dermatologist
What Condition Does This Woman With Scleral Dyschromia Have?
Derm Dx
02/17/2021
Figure 1. Case Report A 54-year-old woman presented for symptoms of itching. Cutaneous examination revealed urticarial dermal plaques on her neck, chest, back, arms, and legs. Incidentally, she was found...
Figure 1. Case Report A 54-year-old woman presented for symptoms of itching. Cutaneous examination revealed urticarial dermal plaques on her neck, chest, back, arms, and legs. Incidentally, she was found...
...
02/17/2021
The Dermatologist
What Is the Cause of These Annular Lesions?
Derm Dx
12/14/2020
A 36-year-old man with a history of chronic back pain presented for evaluation of an atypical nevus on the right leg. A complete skin examination was performed. A dark brown 2- x 2-mm macule was found on his right...
A 36-year-old man with a history of chronic back pain presented for evaluation of an atypical nevus on the right leg. A complete skin examination was performed. A dark brown 2- x 2-mm macule was found on his right...
A...
12/14/2020
The Dermatologist
What Is This Rash?
Derm Dx
11/16/2020
A 49-year-old man presented with a 1-month history of a painful, spreading rash on the abdomen. Past medical history was significant for chronic hepatitis C. Physical examination revealed a large abdominal plaque...
A 49-year-old man presented with a 1-month history of a painful, spreading rash on the abdomen. Past medical history was significant for chronic hepatitis C. Physical examination revealed a large abdominal plaque...
A...
11/16/2020
The Dermatologist
What Is The Cause Of This Red Scalp Nodule?
Derm Dx
10/16/2020
Case Report A 63-year-old man presented for evaluation of a new asymptomatic lesion on his head. His past medical history was significant for renal cell carcinoma, diagnosed 15 years earlier, with subsequent...
Case Report A 63-year-old man presented for evaluation of a new asymptomatic lesion on his head. His past medical history was significant for renal cell carcinoma, diagnosed 15 years earlier, with subsequent...
Case...
10/16/2020
The Dermatologist
What Is This Growth On The Woman’s Forehead?
Derm Dx
09/11/2020
A 67-year-old Ethiopian woman presented with a large black plaque surrounded by several smaller violaceous papules on her frontal hairline for 6 months (Figure). The largest plaque was tender and occasionally...
A 67-year-old Ethiopian woman presented with a large black plaque surrounded by several smaller violaceous papules on her frontal hairline for 6 months (Figure). The largest plaque was tender and occasionally...
A...
09/11/2020
The Dermatologist
What Is This Skin Lesion?
Derm Dx
08/12/2020
Pavan Paka, MD, Usha Alapati, MD, Viktoryia Kazlouskaya, MD, PhD
A 66-year-old African American man was referred for the initial evaluation of a solitary, scrotal mass that was present for 1 year. The 1.5 x 1-cm, pink, exophytic nodule was pedunculated and progressively enlarging. He described the mass as...
A 66-year-old African American man was referred for the initial evaluation of a solitary, scrotal mass that was present for 1 year. The 1.5 x 1-cm, pink, exophytic nodule was pedunculated and progressively enlarging. He described the mass as...
A 66-year-old African American...
08/12/2020
The Dermatologist
What Caused This Dark Ear Lesion?
Derm Dx
07/15/2020
A 73-year-old African American man presented with a dark keratotic plaque on the anterior surface of his ear. He also had white patches with central erythematous areas on his face and scalp that had been present for several year
A 73-year-old African American man presented with a dark keratotic plaque on the anterior surface of his ear. He also had white patches with central erythematous areas on his face and scalp that had been present for several year
A 73-year-old African American...
07/15/2020
The Dermatologist
What is This Eschar on the  Right Calf?
Derm Dx
06/11/2020
A 58-year-old male dermatologist was on a flight home to New York after a trip to Sardinia, Italy, when he began to develop chills. The following day, he experienced fevers up to 103 °F, drenching sweats, and uncontrollable rigors.
A 58-year-old male dermatologist was on a flight home to New York after a trip to Sardinia, Italy, when he began to develop chills. The following day, he experienced fevers up to 103 °F, drenching sweats, and uncontrollable rigors.
A 58-year-old male dermatologist...
06/11/2020
The Dermatologist
What is This Rash?
Derm Dx
05/13/2020
Michael J. Visconti, BS, Arjun M. Bashyam, BA, Steven R. Feldman, MD, PhD, Amor Khachemoune, MD, FAAD, FACMS, Section Editor
A 16-year-old adolescent boy presented with a 2-year history of an expanding, dark eruption involving the chest, abdomen, axilla, and upper extremities. There was no pruritus or other associated symptom.
A 16-year-old adolescent boy presented with a 2-year history of an expanding, dark eruption involving the chest, abdomen, axilla, and upper extremities. There was no pruritus or other associated symptom.
A 16-year-old adolescent boy...
05/13/2020
The Dermatologist

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