MCC

Abbreviation with 3 meanings

MCC
Stands for	Merkel cell carcinoma
Meanings	3
Categories	Medical, Technology & Computing

MCC has three meanings. The most common are Merkel cell carcinoma (dermatology) and Motorcycle crash (emergency medicine); it can also stand for Mobile country code.

Meanings of MCC at a glance

#	MCC stands for	Context
1	Merkel cell carcinoma	Medical › Dermatology
2	Motorcycle crash	Medical › Emergency Medicine
3	Mobile country code	Technology & Computing › Telecom

1. Merkel cell carcinoma

Medical · Dermatology Abbreviations

Rare, aggressive neuroendocrine skin cancer that appears as a fast-growing, painless, red or violet nodule, usually on sun-exposed skin of older or immunosuppressed adults. It frequently spreads to lymph nodes and is treated with surgery, radiation and immunotherapy.

Example: Rapidly enlarging violaceous nodule on cheek: MCC, CK20 positive; PET-CT and sentinel node biopsy.

Most cases are caused by Merkel cell polyomavirus, discovered in 2008, while others result from UV damage. Clinical clues are summarized as AEIOU: asymptomatic, expanding rapidly, immune suppression, older than 50 and UV-exposed site. Avelumab became the first FDA-approved drug for metastatic MCC in 2017.

2. Motorcycle crash

Medical · Emergency Medicine Abbreviations

Trauma mechanism involving a motorcycle, recorded with details such as helmet use, speed and whether the rider was thrown. Riders face far higher injury and death rates than car occupants.

Example: Unhelmeted MCC at highway speed, GCS 7, open tib-fib fracture.

Also written MCA (motorcycle accident). Helmet use substantially reduces the risk of death and head injury, and helmet laws vary by US state. In medical billing MCC means major complication or comorbidity, a coding term.

3. Mobile country code

Technology & Computing · Telecom Abbreviations

Three-digit code identifying the country of a mobile network, combined with a mobile network code (MNC) to identify each operator worldwide. It forms the start of every SIM's IMSI.

Example: The network info app shows MCC 234 and MNC 15, which means Vodafone UK.

The ITU assigns MCCs in Recommendation E.212; examples include 310 to 316 for the United States, 234 and 235 for the United Kingdom and 460 for China. Together, the MCC and MNC form the PLMN identity that phones use to choose and display networks while roaming. They differ from international dialing codes, such as +1 or +44.

More dermatology abbreviations

KOH – Potassium hydroxide (preparation)
KP – Keratosis pilaris
LP – Lichen planus
LS – Lichen sclerosus
MIS – Melanoma in situ
MM – Malignant melanoma
MMS – Mohs micrographic surgery
NB-UVB – Narrowband ultraviolet B phototherapy

See all 52 dermatology abbreviations →

More emergency medicine abbreviations

lac – Laceration
LSB – Long spine board
LWBS – Left without being seen
MARCH – Massive hemorrhage, airway, respiration, circulation, hypothermia
MCI – Mass-casualty incident
MOI – Mechanism of injury
MOLST – Medical Orders for Life-Sustaining Treatment
MOST – Medical Orders for Scope of Treatment

See all 97 emergency medicine abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.

MCC