History: A 31 year-old trauma patient underwent a splenectomy to remove a lacerated spleen. The organ was enlarged, weighing 500 grams and had overall diameters of 19.5 x 10.5 x 3.5 cm. The parenchyma was uniformly firm and red with indistinct follicular and trabecular markings. No focal lesions were identified.
Microscopically, the red pulp was expanded, largely by a macrophage infiltration (Fig. 1). These cells had bubbly, vacuolated cytoplasm giving the cytoplasm a “clear cell” appearance (Figs. 2,3). Special stains included:
CD68 Positive
PAS (+/- diastase) Faintly positive
Giemsa Rare ceroid-containing (‘sea …
Surgical Pathology of Important Clinical Endocrine Disorders
Lester D.R. Thompson, M.D.
The Diagnosis of Bone Tumors Using and Image-Based Approach: A Way to Diminish Apprehension
Michael J. Klein, M.D.
Hematologic Disorders
Lawrence M. Weiss, M.D.
The Difficult Diagnosis in Surgical Pathology – The Hunt for the Elusive Primary Site
Noel Weidner, M.D.
The new version of Cforms has been implemented. Please let me know if you encounter any problems. /crosses fingers.
Case 1: Osteochondroma, femur
T-11710, M-92100
Case 2: Plasmacytoma/myeloma, humerus
T-11410, M-97311
Case 3: High grade conventional osteosarcoma, osteoblastic type, toe
T-Y9800, M-91803
Case 4: Mesenchymal chondrosarcoma, tibia
T-Y9400, M-92203
Case 5: Epithelioid hemangioendothelioma/low grade epithelioid angiosarcoma, scalp/ear
T-XY000, M-91203
Case 6: Angiosarcoma, scalp
T-Y0160, M91203
Case 7: Rhabdomyosarcoma, predominantly spindle cell type, pelvis
T-Y6000, M-89003
Case 8: Low grade myxosarcoma, abdominal wall
T-Y4100, M-88403
Case 9: Myxoid/round cell liposarcoma (95% round cell component), thigh
T-Y9100, M-88533
Case 10: Monophasic synovial sarcoma, heel
T-Y9600, M-90403
November 2009
Case 1: Hepatoblastoma, epithelial type, with mixed embryonal and fetal patterns, Liver
T-56000, M-89703
Case 2: Hepatocellular carcinoma, liver
T-56000, M-81703
Case 3: Hepatocellular carcinoma, liver
T-56000, M-81703
Case 4: Undifferentiated hepatic neoplasm, liver
T-Y4100, M-89703
Case 5: Gastrointestinal stromal tumor (GIST), stomach.
T-63000, M-88903
Case 6: Poorly differentiated adenocarcinoma with signet rings, pancreas
T-59000, M-84903
Case 7: Adenocarcinoma, duodenum/small bowel
T-64300, M-81403
Case 8: Mucinous adenocarcinoma of cecum
T-67100, M-81403
Case 9: Adenocarcinoma, colon
T-67000, M-81403
Case 10: Metastatic choriocarcinoma, small bowel
T-64000, M-91003
Case 1: Proliferative fasciitis, buttock
Case 2: Myofibroma/myopericytoma/infantile solitary myofibroma, leg
Case 3: Xanthoma of tendon sheath, leg
Case 4: Xanthoma/Xanthelasma, eyelid
Case 5: Juvenile xanthogranuloma (JXG), cheek
Case 6: Cutaneous fibrous histiocytoma/dermatofibroma, leg
Case 7: Giant cell tumor of tendon sheath, localized (GCTTS, nodular), finger
Case 8: Giant cell tumor, diffuse/Pigmented villonodular synovitis, thigh
Case 9: Giant cell tumor of bone, metacarpal bone
Case 10: Atypical fibroxanthoma (AFX), scalp/superficial/(dermal) pleomorphic sarcoma
