BREAST CYTOPATHOLOGY

Index 171
Human immunodeficiency
virus-positive patients,
47
Hyperplasia
ductal. See Ductal
hyperplasia
lobular. See Lobular
hyperplasia
pseudoangiomatous stromal.
See Pseudoangiomatous
stromal hyperplasia
I
Infection, fine-needle
aspiration-related, 5
Inflammatory carcinoma, 120
Inflammatory conditions, of the
breast, 16–18
Inflammatory myofibroblastic
tumors, 51–52
differential diagnoses of, 52,
75, 79
L
Lactation-related breast
changes, 43–46
differential diagnoses of
inflammatory breast
conditions, 120
lobular carcinoma in situ,
98
secretory carcinoma, 116
as mastitis cause, 16
Lactiferous ducts
low-grade/mild infection of,
17
subareolar papilloma of, 67
Leukemia, 149
Lipid-rich/lipid-secreting
carcinoma
differential diagnoses of,
107
glycogen-rich, clear cell
carcinoma, 121
signet ring carcinoma, 104,
105
Lipoma, 5, 77–78
clinical features of, 77–78
cytomorphologic
characteristics of, 78
differential diagnoses of, 32,
78
Lobular carcinoma, 96–103
differential diagnoses of
invasive ductal carcinoma
not otherwise specified
(NOS), 96
lactation-related breast
changes, 46
radiation-related breast
changes, 39
with fibroadenoma, 57
in situ, 96–98
invasive, 98–103
carcinoma in situ
associated with, 99, 100
clinical features of, 98–99
cytomorphologic features
of, 98, 99–103
differential diagnoses of,
103, 104, 105, 118, 130,
139
false-negative diagnosis of,
103
as “gray zone diagnosis,”
28
histologic features of, 99
Lobular hyperplasia
atypical, 39
differential diagnoses of,
39, 46, 98, 103
proliferative breast diseaserelated,
25
Lobular neoplasia, 103