5 Tumours of the Finger:
Soft-tissue lesions of the
fingers are commonly
found in daily clinical practice.
A wide range of tumors and pseudotumors have
been described in this location.
1) Glomus Tumour:
Ouch it hurts! Very
painful tumour at the tip of the finger.
Pathology of Glomus tumour
2) Ganglion Cyst - "Ball of fluid".
Harmless and common soft tissue lesion usually located on the dorsal or
lateral surfaces of the distal interphalangeal joint or over proximal
These are predominantly noted on the middle and index fingers.
Histologically, these are localized poorly defined mass of collagen or
myxoid stroma with spindle cells or stellate cells.
They are also known as pseudocysts as there is no epithelial lining of the space.
3) Giant Cell Tumour of Tendon Sheath -
Tumour is almost always confined to the
Lesion on the fingers are more common than
those on the toes.
painless and slow growing nodules.
There is a admixture of osteoclastic giant
cells, eosinophilic mononuclear cells, macrophages and chronic inflammatory
4) Palmar Fibromatosis (Dupuytren's
Contracture) -"Claw Hand"
These are nodules on the flexor surface of the
proximal phalanx which gradually extends into fibrous bands.
progressive flexion contracture affecting one or more fingers.
Histologically, in the initial stage the lesion is characterized by pale
eosinophilic myofibroblasts with plump vesicular nuclei arranged in
In later stage the tumour is less cellular, there is more
hyalinization and the cells are more fibroblastic in appearance.
Pathology of Fibromatosis
Despite its benign macro
and microscopic appearance it is a very aggressive malignant tumour and requires
immediate wide excision and lymph node biopsy.
Pathology of Epithelioid Sarcoma
This post is for those who enjoy "Finger Art".
There are many more pretty "finger art"
images in my collection, which I will present in some other post.