may be difficult to diagnose and is a clinical condition.
MRI of the breast in the differential diagnosis of mastitis versus inflammatory carcinoma
Clinically, it presents as an erythematous plaque, patch, or nodules, often with edema, and evokes a differential diagnosis that includes inflammatory carcinoma
or an infectious etiology.
Infiltrating ductal cancer is the most common tumor type, but intraductal cancer, inflammatory carcinoma
, and Paget's disease of the nipple have been described as well.
of the breast is not a histological subtype, but describes clinical changes that occur as a result of breast cancer cells blocking lymph channels in the breast.
 In rare cases, a zosteriform pattem is seen,  as well as that of a metastatic inflammatory carcinoma
.  Tumors can also be found at the site of a bum scar.[26,35,39] Pulmonary mesothelioma tends to involve skin more often by direct extension than by a distant metastasis.
(39) Imaging findings are non-specific and a core biopsy should be performed to exclude inflammatory carcinoma
if there is no clinical improvement on antibiotics.
"Metastatic inflammatory carcinoma
of the rectum: tumour spread by three routes".
in suspected Paget's disease of the nipple, local recurrence after mastectomy for breast cancer and inflammatory carcinoma
of the breast where malignant cells may be seen in the dermal lymphatics.
--pT4b: Ulceration and/or ipsilateral satellite nodules and/or edema (including peau d'orange) of the skin, which do not meet the criteria for inflammatory carcinoma
When combined with erythema, warmth and tenderness, these signs are the hallmark of inflammatory carcinoma
, and may be mistaken for mastitis or breast abscess.
(17) Inflammatory carcinoma
is characterized by erythema of the mammary skin with thickening, especially at the edge of the erysipeloid area.