A 4th-year trainee student went to the OT and asked the surgeon about a painless movable node. The surgeon responded that it is a?

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

A lipoma is a benign tumor of mature fat cells, making it the most common soft tissue tumor in adults.
The classic clinical presentation of a lipoma is a soft, painless, and freely movable subcutaneous mass, which directly matches the question's description.
The image provided shows a well-defined, smooth subcutaneous mass, which is the typical visual appearance of a lipoma.
Lipomas are cured by simple surgical excision and rarely transform into malignant liposarcomas.

Option B: Myeloma is a hematologic malignancy of plasma cells in the bone marrow. It does not present as a single, movable subcutaneous lump.
Option C: An adenoma is a benign tumor of glandular epithelial tissue. It is found in organs like the colon, thyroid, or pituitary gland, not typically as a movable subcutaneous node.
Option D: A carcinoma is a malignant tumor. A key feature of malignant solid tumors is that they are often hard, have irregular borders, and are fixed (not movable) to surrounding tissues due to local invasion.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Clinical differentiation of subcutaneous lumps based on physical characteristics as background academic context rather than a clinical decision trigger.
Nurses must be able to perform a basic assessment of skin lumps to identify 'red flag' signs (hardness, fixation, rapid growth, skin changes) that require urgent medical referral for further investigation, such as ultrasound or biopsy.
Patient education is a key nursing role. A patient with a diagnosed lipoma can be reassured of its benign nature while being instructed to monitor for any changes in size, shape, or the development of pain.
What if? If the node was described as 'hard, irregular, and fixed to the underlying muscle', the primary suspicion would shift from a benign lipoma to a malignant process like a sarcoma or infiltrating carcinoma, warranting an immediate biopsy.

How to Approach the Question

First, identify the key descriptors in the clinical scenario: 'painless' and 'movable node'.
Recognize that these two features strongly suggest a benign, well-encapsulated process.
Evaluate the given options in the context of a subcutaneous lump. A lipoma is a benign tumor of fat that classically presents as a painless, movable mass.
Contrast this with the characteristics of the other options: Myeloma is a bone marrow cancer, an adenoma is a glandular tumor, and a carcinoma is typically hard and fixed.
Conclude that Lipoma is the only option that fits the classic description provided in the question.

Concept Tested & Keywords

Concept Tested: Clinical differentiation of subcutaneous lumps based on physical characteristics.
Stem keywords: painless, movable node, surgeon
Lead-in keywords: it is a?
Clinical cues: The combination of 'painless' and 'movable' are the most significant clues pointing towards a benign lesion.

QyfJfPh7qzzk4ZuxuSCiUc

E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed p. 1208-1210

E6 PATHOLOGY QUICK REVIEWBased on Harsh Mohan Textbook of PATHOLOGY p. 259-261

E6 Nelson Textbook of Pediatrics(2024) — Volume 2 p. 1998-2000

Practise the full NORCET 2 - 2021 (shift-1)

Attempt every question from this paper in a timed mock, then review the full solution for each one.