Prevalence of Malignant Breast Lesions in Patients
diagnostic certainty and fewer missed malignancies
to be original and unaected by prior therapeutic or
diagnostic approaches to be eligible for the study.
Exclusion criteria for the study include: previously
diagnosed breast cancer females who had undergone
breast surgery, or had undergone chemotherapy,
hormonal therapy, or radiation, because these factors
could alter the tissue structure or complicate the
histology. Recurrent lumps, cases with inadequate
documentation, and cases where biopsy samples were
found to be insucient for a thorough pathological
analysis were also excluded in order to preserve
methodological consistency and surgical detail. All
eligible women underwent a detailed clinical evaluation
performed by senior surgical faculty. A detailed
medical history was taken, which included duration of
the symptom, rate of progression, associated pain,
nipple discharge, previous breast disease, hormonal
exposure, lactation history, pregnancy status, age at rst
menstruation, menopause, and family history of breast
and ovarian neoplasms. A breast examination was
conducted according to oncology standards, including
visual observation in dierent positions and systematic
palpation of the breast and the regional lymphatic
basins. Tumor characteristics, including size, laterality,
quadrant of origin, contour, xation, and regional nodal
abnormality, were recorded in detail. All participants
were required to undergo tissue sampling for
histopathology, as this was the method by which the
centre determined the gold standard for malignancy.
The treating surgical team selected the biopsy method
based on clinical indication and lesion characteristics
(including size, location, clinical suspicion, and
feasibility), and the planned procedure was explained to
each participant and performed after informed consent
was obtained. The core needle biopsy method using an
automated 14-gauge device was favored for its superior
diagnostic accuracy, reproducibility, and greater safety.
Excisional biopsy was oered in patients with smaller,
well-circumscribed lesions where complete removal
was clinically appropriate. In contrast, an incisional
biopsy was oered for larger or more inltrative tumors
where sampling would be required to plan for the
closure of the multilayered surgical technique
afterward. All samples were placed in 10% neutral
buffered formalin and transferred to the hospital
pathology laboratory as quickly as possible to maintain
cellular integrity. In the pathology department, each
lesion was determined to be either benign or malignant,
and malignant tumors were further typed and graded
morphologically according to the most recent WHO
guidelines. Adequate tissue was obtained for
histopathological interpretation in all included cases.
Determining the prevalence of malignant breast lesions
in women with palpable breast lumps was the primary
aim of the study. Secondary analyses included age
when there is concordance among these components.
Though there have been signicant advancements in
imaging technologies and their impact on risk
assessments, follow-up is still warranted for low-
suspicion ndings (e.g., BI-RADS 3/probably benign
lesions) as they continue to pose a small but clinically
significant risk for malignancy.10 This is also true for
cases of clinical-radiologic discordance as well as those
that evolve on surveillance. Despite the high national
burden of breast cancer and the frequent presentation of
palpable breast lumps, there remains a need for
contemporary, center-specific evidence from Pakistani
tertiary care hospitals describing the histopathological
spectrum of palpable breast lumps and quantifying
malignancy prevalence using histopathology as the
reference standard-particularly in regions where
delayed presentation is common and diagnostic
pathways vary across institutions. Therefore, this study
aims to determine the prevalence of malignant breast
lesions among women presenting with palpable breast
lumps and to describe associated clinical characteristics
in our setting.
METHODOLOGY
This hospital-based descriptive cross-sectional study
was conducted at the General Surgery Department of
Hayatabad Medical Complex, Peshawar, a large tertiary
referral hospital serving patients from Khyber
Pakhtunkhwa and surrounding areas. The study was
conducted from February 23, 2025, to August 23, 2025.
A consecutive (non-probability) sampling technique
was used, and all eligible women presenting for the rst
time with a newly identied palpable breast lump were
enrolled. All eligible patients during the study period
consented
to
participate
and
completed
histopathological evaluation; therefore, there were no
refusals and no dropouts. A sample size of 163 was
obtained through the use of the single population
proportion formula (n = Z²p(1−p)/d²), where Z = 1.96
(95% condence level), the expected prevalence of
malignancy p = 0.27 (based on previous regional
estimates), and the absolute precision (margin of error)
d = 0.07. The prevalence found in this study represents
the prevalence of malignancy in hospitals because it is
proportional (as
a
fraction) of the number of
symptomatic women who present with palpable breast
lumps and not prevalence on a population level. All
women attending the outpatient department for the rst
time with a newly identied palpable breast lump were
enrolled following the study’s eligibility criteria.
Women with a clinically identiable breast mass,
whether discovered by mistake or with symptoms, were
included in the study’s population. The presentation had
April - June 2026
J Gandhara Med Dent Sci
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