OSPE 2025

Where is this tissue located in t h e body?

• Trachea

• Auricle

• Intervertebral disc

A 71-year-old man experienced non-hemorrhagic stroke that caused him to be disabled, and eventually cause his muscles to atrophy. Based on the result of biopsy presented below, what

are the characteristics that support the diagnosis of muscle atrophy?

• Decreased myofiber number

• Less accumulation of degenerative inclusion bodies

• Decreased connective tissue

• Decreased myofiber size variation

• ncreased myofiber size

Pes anserinus / goose foot refers to the conjoined tendons of what muscles?

(Look at the part circled in red)

• M.gracilis, m.pectineus, m.adductor magnus

• M.semimembranosus, m.semitendinosus, m.gracilis

• M.semitendinosus, m.gracilis, m.pectineus

• M.semitendinosus, m.sartorius, m.gracilis

A 60 y.o. patient came with pain on right knee. Synovial fluid examination revealed: 1 3 1 4 1 5 1 6

Clear, Yellow fluid

Good viscosity WBC less than 5000, Neutrophils less than 30 % 17 1 8 19 2 0

Normal glucose, Bacterial : negative

Based on the examination, the problem is catogorized as

• Non inflammatory

• Crystal induced

• Septic

• Hemorrhagic

• Inflammatory

A 23-year-old man had a bone marrow biopsy with the result presented below. The stroma can be seen to contain a myriad of cell types. What cell is the arrow pointing at?

• Myocyte

• Endothelial cell

• Osteoblast

• Adipocyte

• Osteoclast

Which one the antibiotics are detect MRSA and MSSA ?

• Oxacillin

• Amoxycillin

• Ampicillin sulbactam

• Floroquinolon

• Cefalosporin

What is t h e function of this calcification?

• To repair damaged cartilage

• To form the fl a t b o n e s of t h e face, m o s t of t h e cranial bones, & the clavicles

• To form bones at the base of the skull and long bones

A 45-year-old woman presented with painful swelling on her left thumb for the last 5 months. A plain radiograph showed a bubbly appearing lytic

lesion involving most of the distal phalanx. Based on the result of biopsy presented below, what is her diagnosis?

• Chondrosarcoma

• Bone infarct

• Enchondroma

• Granuloma

• G i a n t cell tumor

What is t h e function of t h e pointed cell?

• Maintain mineral concentration of matrix

• Bone formation

• Bone resorption

A 21-year-old man presented with painful swelling near his right knee for the past 7 months. The pain worsen when moving and abate with rest. He also reported stiffness on his right

knee. Based on the result of biopsy presented below, what is his diagnosis?

• Nonossifying fibroma

• Aneurysmal bone cyst

• Giant Cell Tumor

• Chondroblastoma

• Primary bone tumor