SB 5151 Histiocytic sarcoma

Diagnostic Talley: high grade carcinoma�5, MFH�5, anaplastic large cell

IPOX: S100(+), CD163(+). CD1a, CD20, PAX-5, CD30, CD15, CD21, HMB45, Melan A�all negative.

Consultant: Stanford pathology

Reference: Histopathology 2002, 41:1-29.


SB 5152 Radiation induced extra skeletal osteosarcoma, chrondroblastic variant.

Diagnostic Talley: osteosarcoma�unanimous.

IPOX (performed on core biopsy): EMA, S-100, HMB-45, CD30, CD34, CD45, CD68, SMA, desmin and CD117: all negative.

Consultant: Stanford pathology


SB 5153 Malignant peripheral nerve sheath tumor associated with neurofibromatosis type I.

Diagnostic Talley: sarcoma NOS�20, inflammatory MFH�3, low grade fibromyxoid sarcoma-2, MPNST�3.

IPOX: S-100 (+)

Consultant: Sharon Weiss, M.D.

Reference: Cancer 47;10:2503-2509.


SB 5154 Epithelioid angiosarcoma

Diagnostic Talley: Melanoma�5, epithelioid angiosarcoma-30, epithelioid hemangioendothelioma�3.

IPOX: CD31 (+), factor VIII (+), CD34 (-).


SB 5155 Chordoid meningioma, WHO grade II.

Diagnostic Talley: Oligodendroglioma-3, metastatic tumor-2, microcystic meningioma-3, myxoid meningioma-2, chordoid glioma-2.

Consultant: Teri Haddix, M.D. Stanford

Reference: Atlas of Tumor Pathology, 3rd series, AFIP, pp 472-84, 2001.



SB 5156 Meningeal melanocytoma

Diagnostic Talley: Melanotic schwannoma-20, meningeal melanocytoma-10.

Consultant: Hannes Vogel, M.D. Stanford.

References: Turhan T, et al. Spinal meningeal melanocytoma. Report of two cases and review of the literature. J Neurosurg. 2004 Mar;100(3 Suppl Spine):287-90.

SB 5157 Well differentiated mucinous endometrial adenocarcinoma resembling endocervical microglandular hyperplasia.

Diagnostic Talley: Syncytial papillary metaplasia-5, well differentiated endometrial adenocarcinoma-30.

Follow-up: Hysterectomy shows residual tumor with invasion into inner 1/8 of myometrium. All lymph nodes negative.

Consultant: Charles Zaloudek, M.D. UCSF.

Reference: Zaloudek C, et al. Microglandular adenocarcinoma of the endometrium: a form of mucinous adenocarcinoma that may be confused with microglandular hyperplasia of the cervix. Int J Gynecol Pathol 1997;16:52-59.


SB 5158 Churg-Strauss syndrome

Diagnostic Talley: Hypereosinophilic syndrome-4, Churg Strauss syndrome-40.


SB 5159 Whipworm�Trichiura trichiurus

Diagnostic Talley: Whipworm--unanimous


SB 5160 Acute promyelocytic leukemia (FAB-AML-M3)

Diagnostic Talley: Acute promyelocytic leukemia--unanimous

Follow up: Patient being treated with chemotherapy and ATRA, currently in remission.


Post Conference Evaluation Case: Epithelioid angiosarcoma.