Diagnosaurus
Papules and nodules
DDx
Skin-colored, white, or yellow
- Skin tag (acrochordon)
- Warts
- Basal cell carcinoma
- Squamous cell carcinoma
- Sebaceous (epidermal inclusion) cyst
- Lipoma
- Xanthoma
- Molluscum contagiosum
- Nevus (intradermal)
- Sebaceous hyperplasia
- Milia
- Keratosis pilaris
- Granuloma annulare
- Rheumatoid nodules
- Gout
- Sarcoidosis
- Calcinosis cutis
- Metastases (color variable)
- Calluses or corns
- Gummas (tertiary syphilis)
- Sporotrichosis
- Foreign-body granuloma
- Seborrheic keratosis
- Nevus (compound, intradermal)
- Melanoma
- Dermatofibroma
- Neurofibroma
- Insect bites
- Acne vulgaris
- Cherry angioma
- Hemangioma
- Folliculitis
- Inflamed sebaceous (epidermal inclusion) cyst
- Furuncle
- Scabies
- Erythema nodosum
- Basal cell carcinoma
- Keratoacanthoma
- Prurigo nodularis
- Miliaria (heat rash)
- Urticaria
- Sporotrichosis
- Vasculitis (palpable purpura)
- Lichen planus
- Melanoma
- Kaposi's sarcoma
- Blue nevus
- Venous lake
- Mycosis fungoides (cutaneous T cell lymphoma)
- Endocarditis (Osler's nodes)
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Last updated: December 1, 2014
Citation
Zeiger, Roni F.. "Papules and Nodules." Diagnosaurus, 4th ed., McGraw-Hill Education, 2014. Emergency Central, emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114236/all/Papules_and_nodules.
Zeiger RFR. Papules and nodules. Diagnosaurus. McGraw-Hill Education; 2014. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114236/all/Papules_and_nodules. Accessed November 4, 2025.
Zeiger, R. F. (2014). Papules and nodules. In Diagnosaurus (4th ed.). McGraw-Hill Education. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114236/all/Papules_and_nodules
Zeiger RFR. Papules and Nodules [Internet]. In: Diagnosaurus. McGraw-Hill Education; 2014. [cited 2025 November 04]. Available from: https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114236/all/Papules_and_nodules.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Papules and nodules
ID - 114236
A1 - Zeiger,Roni F,
Y1 - 2014/12/01/
BT - Diagnosaurus
UR - https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114236/all/Papules_and_nodules
PB - McGraw-Hill Education
ET - 4
DB - Emergency Central
DP - Unbound Medicine
ER -
